Patents-Review.com
ClassID:

198081 ⎘

G11B7/0938 - CPC Classification

Classification description:

Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation , reproducing using an optical beam at lower power ; Record carriers therefor; Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following servo format, e.g. guide tracks, pilot signals

Recent Application in this class:
#1
20220262398
2022-08-18

Detection apparatus, optical drive, and detection method

 #2
20180315448
2018-11-01

Optical disc device

 #3
20170103780
2017-04-13

Optical disk, optical disk recording method, optical disk recording device, and integrated circuit

 #4
20170013229
2017-01-12

Storage system using unformatted digital optical tape

 #5
20160042755
2016-02-11

Digital optical tape storage system

 #6
20150255107
2015-09-10

Tape recording medium, information recording/reproducing device, and method of manufacturing tape recording medium

 #7
20140376354
2014-12-25

Information storage medium, reproducing method, and recording method

 #8
20140192130
2014-07-10

Laser reactive media and apparatus and method for writing an image onto such media

 #9
20140177414
2014-06-26

Information storage medium, reproducing method, and recording method

 #10
20140078875
2014-03-20

Optical disk device with independent servo layer focus and tracking control on a multilayered disc

 #11
20140003209
2014-01-02

Information storage medium, reproducing method, and recording method

 #12
20140003208
2014-01-02

Information storage medium, reproducing method, and recording method

 #13
20130188469
2013-07-25

Recording medium

 #14
20130155826
2013-06-20

Data recording medium, method for generating a reference clock signal, and data storage device

 #15
20130064054
2013-03-14

Information recording medium, and recording method and reproducing method thereof

 #16
20130064053
2013-03-14

Information recording medium, and recording method and reproducing method thereof

 #17
20130021892
2013-01-24

Writable information recording and reproducing apparatus

 #18
20130010583
2013-01-10

OPTICAL PICK UP, OPTICAL DRIVE DEVICE, AND LIGHT IRRADIATION METHOD

 #19
20120320726
2012-12-20

Optical recording disc and method for recording or reading data on the optical recording disc

 #20
20120300602
2012-11-29

Optical information processing device and tracking control method thereof for use with grooveless multilayer optical disc

 #21
20120250482
2012-10-04

Optical disc device and recording method

 #22
20120250481
2012-10-04

Disc device

 #23
20120182851
2012-07-19

OPTICAL RECORDING MEDIUM AND RECORDING METHOD

 #24
20120176882
2012-07-12

Information recording medium, and recording method and reproducing method thereof

 #25
20120147725
2012-06-14

REPRODUCING APPARATUS AND REPRODUCING METHOD

 #26
20120134251
2012-05-31

System and method for precise servoing

 #27
20120120783
2012-05-17

GUIDE-LAYER SEPARATED OPTICAL DISK, OPTICAL DISK DRIVE APPARATUS, AND TRACKING CONTROL METHOD

 #28
20120113777
2012-05-10

Recording apparatus and recording method

 #29
20120106308
2012-05-03

Optical recording medium and recording device

 #30
20120069723
2012-03-22

OPTICAL RECORDING MEDIUM DRIVE DEVICE AND RECORDING METHOD

 #31
20120069722
2012-03-22

Reproducing device and optical path length servo control method

 #32
20120011526
2012-01-12

Information storage medium, reproducing method, and recording method

 #33
20120011525
2012-01-12

Information storage medium, reproducing method, and recording method

 #34
20120008484
2012-01-12

Optical information recording reproduction apparatus and optical information recording reproduction method

 #35
20120005700
2012-01-05

Information storage medium, reproducing method, and recording method

 #36
20120005699
2012-01-05

Information storage medium, reproducing method, and recording method

 #37
20120002531
2012-01-05

Information storage medium, reproducing method, and recording method

 #38
20120002530
2012-01-05

Information storage medium, reproducing method, and recording method

 #39
20120002529
2012-01-05

Information storage medium, reproducing method, and recording method

 #40
20110305122
2011-12-15

Recording device and recording method

 #41
20110255391
2011-10-20

Hologram recording and reproducing device and method for recording hologram

 #42
20110242951
2011-10-06

Optical pickup, optical drive apparatus, and light illumination method

 #43
20110205882
2011-08-25

SERIES OF OPTICAL RECORDING MEDIA

 #44
20110205869
2011-08-25

Optical recording-reading method and optical recording medium

 #45
20110205868
2011-08-25

Optical recording medium and optical recording-reading method

 #46
20110170388
2011-07-14

Optical drive device and focus servo control method

 #47
20110149699
2011-06-23

Information recording medium, and recording method and reproducing method thereof

 #48
20110141863
2011-06-16

Data storage system and method for calibrating same

 #49
20110134732
2011-06-09

Optical recording medium, optical recording medium driving apparatus, and optical recording medium driving method

 #50
20110134730
2011-06-09

Recording apparatus and control method

 #51
20110134729
2011-06-09

Recording apparatus and control method

 #52
20100296374
2010-11-25

Apparatus and method for initializing information recording medium, apparatus and method for recording information, and information recording medium

 #53
20100290332
2010-11-18

OPTICAL DATA CARRIER WITH REFERENCE LAYER

 #54
20100277561
2010-11-04

LASER REACTIVE MEDIA AND APPARATUS AND METHOD FOR WRITING AN IMAGE ONTO SUCH MEDIA

 #55
20100195453
2010-08-05

Optical disc device and focus control method

 #56
20100172228
2010-07-08

VOLUMINAL INFORMATION RECORDING MEDIUM, INFORMATION RECORDING APPARATUS, INFORMATION REPRODUCING APPARATUS , AND OPTICAL PICKUP

 #57
20100157753
2010-06-24

METHOD FOR REPRODUCING A SIGNAL FROM AN OPTICAL DISC, AND OPTICAL DISC DRIVE

 #58
20100157398
2010-06-24

Holographic recording medium, holographic writing system and holographic reading system

 #59
20100149944
2010-06-17

Optical disc and optical disc device

 #60
20100149943
2010-06-17

OPTICAL DISC AND OPTICAL DISC DEVICE

 #61
20100142334
2010-06-10

Optical tape system

 #62
20100136151
2010-06-03

Optical tape embossing drum and optical tape embossing drum shim

 #63
20100135139
2010-06-03

Optical tape test system

 #64
20100135136
2010-06-03

Data storage system and linear tape

 #65
20100135129
2010-06-03

Data storage system and method for operating a servo system

 #66
20100119957
2010-05-13

Volume holographic data recording media

 #67
20100118687
2010-05-13

OPTICAL INFORMATION RECORDING APPARATUS, OPTICAL INFORMATION RECORDING METHOD, OPTICAL INFORMATION REPRODUCING APPARATUS, OPTICAL INFORMATION REPRODUCING METHOD, AND OPTICAL INFORMATION RECORDING MEDIUM

 #68
20100112460
2010-05-06

Composition for fluorine-containing volume holographic data recording material and fluorine-containing volume holographic data recording media made of same

 #69
20100074090
2010-03-25

Storage system and optical pick-up unit

 #70
20100067074
2010-03-18

Holographic recording medium, holographic writing system and holographic reading system

 #71
20100061212
2010-03-11

METHOD AND DEVICE FOR OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING AND REPRODUCING APPARATUS

 #72
20100061203
2010-03-11

METHOD AND APPARATUS FOR RECORDING AND/OR REPRODUCING DATA INTO AND/OR FROM OPTICAL DISK

 #73
20100054104
2010-03-04

Hologram recording and reproducing device and method for recording hologram

 #74
20100046338
2010-02-25

Optical disc apparatus, focus position control method and recording medium

 #75
20100008211
2010-01-14

Information reproducing apparatus and information reproducing method

 #76
20090316543
2009-12-24

OPTICAL PICKUP, OPTICAL INFORMATION REPRODUCING APPARATUS AND OPTICAL INFORMATION REPRODUCING METHOD

 #77
20090316537
2009-12-24

Recording medium, optical device, and recording and reproducing apparatus

 #78
20090310473
2009-12-17

OPTICAL DATA CARRIER AND METHOD FOR READING/RECORDING DATA THEREIN

 #79
20090303857
2009-12-10

Optical pickup device

 #80
20090303854
2009-12-10

Recording medium, and recording and reproducing apparatus

 #81
20090303849
2009-12-10

Optical pickup device and recording/reproduction device

 #82
20090297955
2009-12-03

OPTICAL RECORDING COMPOSITION, HOLOGRAPHIC RECORDING MEDIUM, AND METHOD OF RECORDING AND REPRODUCING INFORMATION

 #83
20090296542
2009-12-03

Optical disc apparatus and correction servo control signal generation method

 #84
20090290470
2009-11-26

Information recording medium, and recording method and reproducing method thereof

 #85
20090279415
2009-11-12

Information recording medium

 #86
20090279413
2009-11-12

Information recording medium

 #87
20090279411
2009-11-12

Information recording medium

 #88
20090268582
2009-10-29

OPTICAL INFORMATION REPRODUCING APPARATUS AND METHOD THEREOF

 #89
20090268267
2009-10-29

HOLOGRAM RECORDING CARRIER AND HOLOGRAM APPARATUS

 #90
20090262633
2009-10-22

Optical disc apparatus and optical disc replay method

 #91
20090245065
2009-10-01

Optical disc device and focus control method

 #92
20090245052
2009-10-01

OPTICAL RECORDING METHOD, OPTICAL RECORDING APPARATUS, OPTICAL RECORDING MEDIUM, AND OPTICAL RECORDING AND REPRODUCING METHOD

 #93
20090245037
2009-10-01

Focus Servo Method, Optical Reproducing Method, and Optical Reproducing Apparatus

 #94
20090238047
2009-09-24

Method and apparatus for controlling record and reproduction of optical record medium

 #95
20090174920
2009-07-09

Apparatus for recording/reproducing holographic data

 #96
20090161521
2009-06-25

FILTER FOR OPTICAL RECORDING MEDIUM, METHOD FOR PRODUCING THE SAME, OPTICAL RECORDING MEDIUM, AND RECORDING AND REPRODUCING METHOD THEREFOR

 #97
20090161518
2009-06-25

Holographic recording medium and pickup for this medium

 #98
20090147660
2009-06-11

Optical disc apparatus, position control method and optical pickup

 #99
20090147652
2009-06-11

Optical disc device and optical information recording method

 #100
20090103154
2009-04-23

Recording apparatus and information processing apparatus equipped with the same

 #101
20090092034
2009-04-09

OPTICAL INFORMATION RECORDING MEDIUM

 #102
20090080318
2009-03-26

Optical information recording/reproducing apparatus, diffraction-grating fabricating apparatus, optical information recording medium, and positioning control method

 #103
20090080315
2009-03-26

OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS AND METHOD OF OPTICALLY RECORDING AND REPRODUCING INFORMATION

 #104
20090059743
2009-03-05

Method of controlling servo in optical disc device and servo control device using the same

 #105
20090052312
2009-02-26

RECORDING APPARATUS, REPRODUCING APPARATUS, RECORDING METHOD, REPRODUCING METHOD, AND RECORDING MEDIUM

 #106
20090052304
2009-02-26

Optical head device and optical information processor

 #107
20090016192
2009-01-15

RADIAL POSITION REGISTRATION FOR NON-DATA SIDE OF OPTICAL DISC

 #108
20090010141
2009-01-08

Optical pickup apparatus and objective lens

 #109
20090003183
2009-01-01

Optical pickup, optical information recording device, optical information recording method, optical information reproduction device, optical information reproduction method and optical information recording medium

 #110
20080316902
2008-12-25

Optical disc device and converging position correction method

 #111
20080316880
2008-12-25

Information recording medium, and recording method and reproducing method thereof

 #112
20080316555
2008-12-25

Hologram recording medium and method for manufacturing same

 #113
20080298192
2008-12-04

Method and System for Adjusting the Pitch of Light Spots Used to Read an Information Carrier

 #114
20080285431
2008-11-20

Optical disk medium and tracking method

 #115
20080285396
2008-11-20

Method and Apparatus of Formatting a Three Dimensional Optical Information Carrier

 #116
20080285392
2008-11-20

Optical information recording method, optical information reproducing method, optical information recording apparatus and optical information reproducing apparatus

 #117
20080267022
2008-10-30

Method and System With Focus Control for Scanning an Information Carrier

 #118
20080252953
2008-10-16

Holographic storage and regeneration system having servo mechanism

 #119
20080239924
2008-10-02

Optical disc apparatus and method for reproducing information

 #120
20080239921
2008-10-02

OPTICAL INFORMATION RECORDING MEDIUM, OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS, AND POSITION CONTROL METHOD

 #121
20080219109
2008-09-11

Information recording and retrieval method, and its apparatus

 #122
20080212448
2008-09-04

Optical System

 #123
20080192589
2008-08-14

Holographic recording and reproduction system having servo optical path

 #124
20080165652
2008-07-10

Multilayer optical information recording medium, optical head, and optical drive

 #125
20080137493
2008-06-12

Optical recording medium driving apparatus and focusing method

 #126
20080130430
2008-06-05

Optical recording apparatus, optical recording method, recording medium, and reproducing method

 #127
20080122995
2008-05-29

Filter For Optical Recording Medium, Optical Recording Medium, Method For Producing The Optical Recording Medium, Optical Recording Method And Optical Reproducing Method

 #128
20080112304
2008-05-15

Spot Alignment For Parrallel Read-Out Of Two-Dimensional Encoded Optical Storage Media

 #129
20080107859
2008-05-08

Optical information recording medium

 #130
20080080335
2008-04-03

Optical Recording Medium Utilizing Holography and Method for Manufacturing the Same and Optical Recording and Reproducing Apparatus

 #131
20080068966
2008-03-20

Information recording medium

 #132
20080068957
2008-03-20

Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error

 #133
20080056113
2008-03-06

Information recording medium, and recording method and reproducing method thereof

 #134
20080056112
2008-03-06

Information recording medium, and recording method and reproducing method thereof

 #135
20080056110
2008-03-06

Information recording medium, and recording method and reproducing method thereof

 #136
20080056109
2008-03-06

Information recording medium, and recording method and reproducing method thereof

 #137
20080056108
2008-03-06

Information recording medium, and recording method and reproducing method thereof

 #138
20080056107
2008-03-06

Information recording medium, and recording method and reproducing method thereof

 #139
20080049593
2008-02-28

Information recording medium

 #140
20080049592
2008-02-28

Information recording medium

 #141
20080049591
2008-02-28

Information recording medium

 #142
20080043608
2008-02-21

Information recording medium

 #143
20080043606
2008-02-21

Information recording medium

 #144
20080043605
2008-02-21

Information recording medium

 #145
20080043603
2008-02-21

Information recording medium

 #146
20080043601
2008-02-21

Information recording medium

 #147
20080043600
2008-02-21

Information recording medium

 #148
20080043599
2008-02-21

Information recording medium

 #149
20080037382
2008-02-14

Optical Recording Medium Having a Control Layer

 #150
20080037083
2008-02-14

Hologram Recording Carrier and Recording/Reproduction Method and Device

 #151
20080019253
2008-01-24

Information recording/reproducing device and information reproducing method

 #152
20080002553
2008-01-03

Holographic recording/reproducing apparatus having relative speed controller and method

 #153
20070277192
2007-11-29

Information carrier, and system for positioning such an information carrier in an apparatus

 #154
20070258118
2007-11-08

Hologram recording and reconstruction apparatus

 #155
20070248785
2007-10-25

OPTICAL RECORDING MEDIUM, INFORMATION RECORDING AND REPRODUCING APPARATUS, AND INFORMATION RECORDING AND REPRODUCING METHOD

 #156
20070242323
2007-10-18

Holographic recording composition and optical recording medium therewith

 #157
20070220538
2007-09-20

Information carrier, and system for positioning such an information carrier in a reading and/or writing apparatus

 #158
20070211588
2007-09-13

Optical disc apparatus, tracking control method, and integrated circuit

 #159
20070206477
2007-09-06

Optical tape drive systems

 #160
20070206453
2007-09-06

Multilevel nano-structure optical media with oriented tracking marks

 #161
20070201339
2007-08-30

OPTICAL DISC RECORDING APPARATUS, CONTROLLING METHOD OF THE SAME, AND OPTICAL DISC

 #162
20070201338
2007-08-30

OPTICAL DISC RECORDING APPARATUS, CONTROLLING METHOD OF THE SAME, AND OPTICAL DISC

 #163
20070187504
2007-08-16

Optical disc

 #164
20070153344
2007-07-05

System and method for recording and reproducing holographic interferogram with optical servo

 #165
20070147749
2007-06-28

Optical memory reproduction apparatus and incidence positioning method for read light thereof

 #166
20070147200
2007-06-28

Servo controlling method of optical information processing apparatus and optical information recording and reproducing apparatus

 #167
20070146836
2007-06-28

Holographic recording medium, holographic writing system and holographic reading system

 #168
20070121433
2007-05-31

OPTICAL INFORMATION RECORDING AND REPRODUCING APPARATUS

 #169
20070115793
2007-05-24

DVD-RAM disc discriminative reproducing device

 #170
20070103750
2007-05-10

Apparatus and method for recording and reproducing optical information

 #171
20070098950
2007-05-03

Information storage medium, reproducing method, and recording medium

 #172
20070089122
2007-04-19

Information storage medium, reproducing method, and recording method

 #173
20070087156
2007-04-19

INFORMATION STORAGE MEDIUM, REPRODUCING METHOD, AND RECORDING METHOD

 #174
20070076543
2007-04-05

Information recording apparatus, information reproducing apparatus, information recording method, and information reproducing method

 #175
20070072088
2007-03-29

Composition for hologram recording media, hologram recording medium and method for producing the same, hologram recording method and hologram reproducing method

 #176
20070070870
2007-03-29

Servo pattern having reduced noise due to speed variations in linear data storage media

 #177
20070047421
2007-03-01

Optical recording method, optical recording apparatus, optical recording medium, and optical reproducing method

 #178
20070041303
2007-02-22

Information storage medium and apparatus for reproducing the same

 #179
20070036042
2007-02-15

Methods and systems for in-track optical positioning

 #180
20060291360
2006-12-28

Information recording and reproduction method and information recording and reproduction apparatus

 #181
20060291356
2006-12-28

Information storage medium, reproducing method, and recording method

 #182
20060280063
2006-12-14

Optical disk drive using near-field light, optical disk apparatus, and method for driving the apparatus

 #183
20060274619
2006-12-07

Method and apparatus for controlling record and reproduction of optical record medium

 #184
20060250934
2006-11-09

Three dimensional optical information carrier and a method of manufacturing thereof

 #185
20060245314
2006-11-02

Recording disc and apparatus and method for reproducing recorded information

 #186
20060233086
2006-10-19

Multiple layer optical disk, information recording method, and information reproducing method using the same

 #187
20060227670
2006-10-12

Information recording apparatus, information recording medium and information recording medium

 #188
20060227206
2006-10-12

System for recording image onto label layer of optical disc

 #189
20060209664
2006-09-21

Information recording medium

 #190
20060203698
2006-09-14

Information recording medium

 #191
20060198285
2006-09-07

Information recording medium, and recording method and reproducing method thereof

 #192
20060198284
2006-09-07

Information recording medium, and recording method and reproducing method thereof

 #193
20060198283
2006-09-07

Information recording medium, and recording method and reproducing method thereof

 #194
20060198282
2006-09-07

Information recording medium, and recording method and reproducing method thereof

 #195
20060181999
2006-08-17

Holographic disk medium with servo marks

 #196
20060176532
2006-08-10

Holographic recording and reconstructing apparatus and holographic recording and reconstructing method

 #197
20060140074
2006-06-29

Optical information recording apparatus and method

 #198
20060133236
2006-06-22

Tracking control method and apparatus and image capture method and apparatus for holographic information recording medium

 #199
20060130090
2006-06-15

Optical disc recording medium and method of manufacturing the same

 #200
20060126457
2006-06-15

Three-dimensional information recording and reading method

 #201
20060126141
2006-06-15

Holographic recording medium and holographic recording medium manufacturing method

 #202
20060120254
2006-06-08

Information recording medium

 #203
20060114536
2006-06-01

Hologram recording medium

 #204
20060109777
2006-05-25

Information recording medium

 #205
20060109774
2006-05-25

Optical information recording medium

 #206
20060092789
2006-05-04

Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error

 #207
20060077878
2006-04-13

Phase-change optical recording media and optical recording-reproducing apparatus

 #208
20060050341
2006-03-09

Apparatus for recording optical information

 #209
20060002262
2006-01-05

Information recording method

 #210
20050281177
2005-12-22

High track density super resolution mo-rom medium

 #211
20050265208
2005-12-01

Optical disk, optical disk apparatus, and method of optimizing focus

 #212
20050265176
2005-12-01

Optical reproducing method for optical medium with aligned prepit portion

 #213
20050265175
2005-12-01

Optical reproducing method for optical medium with aligned prepit portion

 #214
20050265174
2005-12-01

Optical reproducing method for optical medium with aligned prepit portion

 #215
20050265173
2005-12-01

Optical reproducing method for optical medium with aligned prepit portion

 #216
20050249094
2005-11-10

Information recording method

 #217
20050249093
2005-11-10

Information recording method

 #218
20050249092
2005-11-10

Information recording method

 #219
20050249091
2005-11-10

Information recording method

 #220
20050249090
2005-11-10

Information recording method

 #221
20050249089
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #222
20050249088
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #223
20050249087
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #224
20050249086
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #225
20050249085
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #226
20050249071
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #227
20050249070
2005-11-10

Optical reproducing method for optical medium with aligned prepit portion

 #228
20050243702
2005-11-03

Information recording method

 #229
20050243701
2005-11-03

Information recording method

 #230
20050243700
2005-11-03

Information recording method

 #231
20050243697
2005-11-03

Optical recording medium, reproduction apparatus, and tracking servo method

 #232
20050243696
2005-11-03

Information recording method

 #233
20050243695
2005-11-03

Optical reproducing method for optical medium with aligned prepit portion

 #234
20050243694
2005-11-03

Optical reproducing method for optical medium with aligned prepit portion

 #235
20050243693
2005-11-03

Optical recording method using land/groove recording

 #236
20050243692
2005-11-03

Optical recording method using land/groove recording

 #237
20050243666
2005-11-03

System and method for detecting and recovering from an off-format state in an optical disc drive

 #238
20050237911
2005-10-27

Information recording medium

 #239
20050237910
2005-10-27

Optical data storage medium and use of such medium

 #240
20050237909
2005-10-27

Rewritable optical medium, apparatus for reading and/or for writing it and process for manufacturing a rewritable disc.

 #241
20050237896
2005-10-27

Hologram recording/reproducing device and hologram recording medium

 #242
20050232128
2005-10-20

Information recording medium

 #243
20050231845
2005-10-20

Recording medium, servo signal reproducing method, and servo signal recording method

 #244
20050213483
2005-09-29

Recording disc and apparatus and method for reproducing recorded information

 #245
20050213480
2005-09-29

Optical disk with multilayered structure and method for identifying recording layer of the optical disk

 #246
20050207288
2005-09-22

Information recording medium, and recording method and reproducing method thereof

 #247
20050207287
2005-09-22

Information recording medium, and recording method and reproducing method thereof

 #248
20050180291
2005-08-18

Recording and reproducing method

 #249
20050169162
2005-08-04

Optical disc having a substrate with micro-embossments for tracking guides

 #250
20050169129
2005-08-04

Method for detecting servo error, apparatus therefor, disk which maintains quality of servo error signal, method of controlling servo of disk recording/reproducing apparatus, method of detecting tracking error, and method of detecting tilt error

 #251
20050167865
2005-08-04

Multilayer optical recording medium manufacturing method and multilayer optical recording system

 #252
20050157613
2005-07-21

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