Patents-Review.com
ClassID:

198131 ⎘

G11B7/1395 - 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; Heads, e.g. forming of the optical beam spot or modulation of the optical beam; Means for guiding the beam from the source to the record carrier or from the record carrier to the detector Beam splitters or combiners

Recent Application in this class:
#1
20260148751
2026-05-28

Compact Writing and Reading Head for Hyper Speed Data Recording on Ceramic Material

 #2
20250383554
2025-12-18

ACHROMATIC HOLOGRAPHIC PHASE MARKS

 #3
20230062015
2023-03-02

ACHROMATIC HOLOGRAPHIC PHASE MASKS

 #4
20220343947
2022-10-27

MULTI-CHANNEL MULTIPLEXING METHOD AND DEVICE FOR DISC STORAGE MEDIUM

 #5
20210390981
2021-12-16

Reproduction apparatus and reproduction method

 #6
20210201948
2021-07-01

Holographic data storage device with single-arm structure

 #7
20190139570
2019-05-09

Optical storage system divider based draw verification with high frequency writing strategy pattern

 #8
20180144770
2018-05-24

Optical storage system divider based DRAW verification with high frequency writing strategy pattern

 #9
20180053525
2018-02-22

Optical storage system divider based draw verification

 #10
20180053524
2018-02-22

Optical storage system divider based draw verification with automatic bias or delay adjustment

 #11
20170263281
2017-09-14

Holographic characterization and playback apparatus

 #12
20170236543
2017-08-17

OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE AND HOLOGRAPHIC RECORDING/REPRODUCING METHOD

 #13
20170200463
2017-07-13

Optical information recording device and optical information recording method

 #14
20170133049
2017-05-11

Optical medium reproduction device and optical medium reproduction method

 #15
20170117011
2017-04-27

Optical medium reproduction apparatus and optical medium reproduction method

 #16
20160343397
2016-11-24

Holographic light-emitting module and holographic storage system using the same

 #17
20160284375
2016-09-29

Recording apparatus

 #18
20160196849
2016-07-07

Holographic data storage system

 #19
20160118076
2016-04-28

Optical information recording/reproducing apparatus

 #20
20160104505
2016-04-14

Optical information apparatus and information processing apparatus

 #21
20150380041
2015-12-31

Optical disc information device and information processing device

 #22
20150364151
2015-12-17

OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE, OPTICAL INFORMATION RECORDING AND REPRODUCING METHOD, AND REPRODUCING DEVICE

 #23
20150318012
2015-11-05

Optical information reproduction apparatus and optical information reproduction method

 #24
20150318009
2015-11-05

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

 #25
20150043320
2015-02-12

OPTICAL PICKUP AND OPTICAL DISC DEVICE

 #26
20140355404
2014-12-04

Optical medium reproducing apparatus and optical medium reproducing method

 #27
20140321254
2014-10-30

Data recording apparatus and method using 3D optical memory, and authentication apparatus and method using 3D optical memory

 #28
20140219070
2014-08-07

Optical Pickup and Optical Disk Unit

 #29
20140140184
2014-05-22

Optical tape pick up unit with holographic optical element

 #30
20130343172
2013-12-26

OPTICAL PICKUP DEVICE, OPTICAL INFORMATION RECORDING DEVICE, OPTICAL INFORMATION RECORDING METHOD, AND OPTICAL INFORMATION RECORDING MEDIUM

 #31
20130271823
2013-10-17

Modulated signal detecting apparatus and modulated signal detecting method

 #32
20130235708
2013-09-12

Optical storage device with direct read after write

 #33
20130188466
2013-07-25

OPTICAL PICKUP APPARATUS

 #34
20130058199
2013-03-07

Apparatus comprising a pickup providing multiple beams

 #35
20130051203
2013-02-28

Direct read after write for optical storage device

 #36
20130003512
2013-01-03

OPTICAL PICKUP DEVICE AND OPTICAL DISC APPARATUS EQUIPPED WITH THE SAME

 #37
20120294130
2012-11-22

DATA STORAGE DEVICE

 #38
20120287765
2012-11-15

Optical head and optical drive device

 #39
20120256104
2012-10-11

Phase change device having phase change recording film, and phase change switching method for phase change recording film

 #40
20120250121
2012-10-04

PHASE ADDRESSED HOLOGRAPHIC ASSOCIATIVE MEMORY

 #41
20120218874
2012-08-30

Optical head using beam dividing element

 #42
20120188358
2012-07-26

Optical apparatus

 #43
20120182846
2012-07-19

Device for recording, erasing and reading data on a multi-layer optical disc

 #44
20120120785
2012-05-17

Optical pickup device

 #45
20120117580
2012-05-10

OPTICAL PICKUP AND OPTICAL DISC DRIVE INCLUDING THE OPTICAL PICKUP

 #46
20120106312
2012-05-03

OPTICAL PICKUP DEVICE

 #47
20120106311
2012-05-03

Compatible optical pickup and optical information storage medium apparatus using the same

 #48
20120106310
2012-05-03

Optical head device and optical disc device

 #49
20110292782
2011-12-01

Optical pickup apparatus

 #50
20110194397
2011-08-11

Optical pickup device

 #51
20110170397
2011-07-14

Optical pickup apparatus

 #52
20110149709
2011-06-23

Optical pickup apparatus

 #53
20110063966
2011-03-17

Compound, polymerizable liquid crystal composition, optical element and optical information writing/reading device

 #54
20110051587
2011-03-03

Structure For Optical Pickup Head

 #55
20100246369
2010-09-30

Optical pickup apparatus

 #56
20100195179
2010-08-05

HOLOGRAM REPRODUCING DEVICE AND HOLOGRAM REPRODUCING METHOD

 #57
20100128592
2010-05-27

Objective lens for optical pickup device, and optical pickup device

 #58
20100103800
2010-04-29

Apparatus with a pickup for reading data from or writing data to an optical storage medium

 #59
20100091632
2010-04-15

Optical system, optical pickup apparatus, and optical disk apparatus

 #60
20100091349
2010-04-15

Recording and reproducing device and polarization direction controlling method

 #61
20100060960
2010-03-11

REPRODUCTION DEVICE AND REPRODUCTION METHOD

 #62
20100060959
2010-03-11

REPRODUCTION APPARATUS AND REPRODUCTION METHOD

 #63
20100046353
2010-02-25

OPTICAL RECORDING MEDIUM, OPTICAL HEAD DEVICE AND OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE

 #64
20100039917
2010-02-18

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

 #65
20100033685
2010-02-11

Lighting device and projection image display unit

 #66
20100019126
2010-01-28

OPTICAL HEAD DEVICE, OPTICAL INFORMATION RECORDING/REPRODUCING DEVICE, AND OPTICAL INFORMATION RECORDING/REPRODUCING METHOD THEREOF

 #67
20090323505
2009-12-31

Apparatus for reading from an optical recording medium

 #68
20090323501
2009-12-31

Optical pickup and information device

 #69
20090310465
2009-12-17

Optical head and optical information device

 #70
20090278029
2009-11-12

PICKUP DEVICE

 #71
20090268581
2009-10-29

OPTICAL PICK-UP DEVICE

 #72
20090262629
2009-10-22

Optical head, optical disc device and information recording and/or reproducing device

 #73
20090257339
2009-10-15

OPTICAL HEAD DEVICE AND OPTICAL INFORMATION RECORDING OR REPRODUCING APPARATUS

 #74
20090252019
2009-10-08

MICRO OPTICAL PICKUP APPARATUS

 #75
20090238061
2009-09-24

OPTICAL PICKUP APPARATUS AND OPTICAL INFORMATION RECORDING REPRODUCING APPARATUS

 #76
20090238060
2009-09-24

Optical reproducing device and optical reproducing method

 #77
20090231650
2009-09-17

Optical reproduction device, optical recording/reproduction device, and optical reproduction method

 #78
20090185180
2009-07-23

Method for determining spherical aberration

 #79
20090174920
2009-07-09

Apparatus for recording/reproducing holographic data

 #80
20090128908
2009-05-21

Polarization Split Element and Production Method Thereof, and Optical Pickup, Optical Device, Optical Isolator and Polarizing Hologram Provided with the Polarization Split Element

 #81
20090059767
2009-03-05

Optical Pick-Up Apparatus and Information Record and Reproduction Apparatus

 #82
20090046561
2009-02-19

Optical pickup device

 #83
20090010113
2009-01-08

Optical pickup and optical pickup aberration correcting method

 #84
20090003180
2009-01-01

Holographic recording apparatus, holographic reproducing apparatus, holographic recording method and holographic reproducing method

 #85
20090002692
2009-01-01

Method of Measuring the Laser Power of a Forward Multiple Laser Beam in a Multibeam Optical Scanning System

 #86
20080304394
2008-12-11

Optical pickup and optical disk apparatus

 #87
20080291806
2008-11-27

Optical Device for Recording and Reproducing Holographic Data

 #88
20080253261
2008-10-16

Optical Pickup Having Aberration Correction

 #89
20080247298
2008-10-09

Optical system, optical pickup apparatus, and optical disk apparatus

 #90
20080239929
2008-10-02

OPTICAL HEAD DEVICE

 #91
20080239928
2008-10-02

OPTICAL PICKUP

 #92
20080239927
2008-10-02

OPTICAL HEAD DEVICE

 #93
20080232224
2008-09-25

OPTICAL PICKUP AND OPTICAL DISC DEVICE

 #94
20080212417
2008-09-04

Multivalued information reproducing Method and multivalued information reproducing apparatus

 #95
20080186836
2008-08-07

Optical pickup and optical disc drive

 #96
20080186834
2008-08-07

Optical pickup device and optical disk apparatus

 #97
20080186833
2008-08-07

Optical pickup device and optical disk apparatus

 #98
20080181090
2008-07-31

Objective lens optical system and light beam splitting element

 #99
20080175129
2008-07-24

Optical pickup, optical disc apparatus, integrated coupling lens, integrated prism, and optical information equipment

 #100
20080165657
2008-07-10

Optical pickup apparatus and optical disk drive apparatus

 #101
20080159091
2008-07-03

Optical pickup device and optical recording medium driving device

 #102
20080117789
2008-05-22

OPTICAL PICKUP DEVICE

 #103
20080084808
2008-04-10

SUBMOUNT, SEMICONDUCTOR LASER DEVICE, MANUFACTURING METHOD THEREFOR, HOLOGRAM LASER DEVICE AND OPTICAL PICKUP DEVICE

 #104
20080068973
2008-03-20

Optical pickup

 #105
20080049584
2008-02-28

Optical pick-up unit

 #106
20080049184
2008-02-28

Cartesian polarizers utilizing photo-aligned liquid crystals

 #107
20080037399
2008-02-14

Optical disk apparatus compatible with different types of mediums adapted for different wavelengths

 #108
20080031099
2008-02-07

Optical pickup and optical disc device

 #109
20080025189
2008-01-31

Optical pickup apparatus

 #110
20080025169
2008-01-31

INFORMATION RECORDING/REPRODUCING DEVICE AND OPTICAL PICKUP

 #111
20080002555
2008-01-03

Optical pickup and optical disc apparatus

 #112
20070286053
2007-12-13

Optical pickup and optical drive

 #113
20070263678
2007-11-15

Coherent light source and optical system

 #114
20070263268
2007-11-15

Hologram recording device

 #115
20070206480
2007-09-06

Polarization state detector systems and methods for read-out of multilevel oriented nano-structure optical media

 #116
20070171786
2007-07-26

Optical pickup apparatus and optical disk apparatus

 #117
20070139647
2007-06-21

Laser-detector-grating-unit

 #118
20070127350
2007-06-07

Optical disk unit

 #119
20070127337
2007-06-07

Optical recording medium driving device

 #120
20070109943
2007-05-17

Holographic memory reproduction method and apparatus

 #121
20070036058
2007-02-15

Method and unit for separating light and optical pickup device and optical recording/playback apparatus based thereon

 #122
20070025229
2007-02-01

Optical pickup apparatus

 #123
20070014196
2007-01-18

Optical head and disk reproducing apparatus

 #124
20070008860
2007-01-11

Optical data reading/writing device having separated read and write beams

 #125
20060280065
2006-12-14

Optical pickup device

 #126
20060221799
2006-10-05

Optical disk apparatus compatible with different types of mediums adapted for different wavelengths

 #127
20060198276
2006-09-07

Optical recording medium driving device

 #128
20060193231
2006-08-31

Optical multilayer disk, multiwavelength light source, and optical system using them

 #129
20060176799
2006-08-10

Optical information recording method and optical information recording and reproducing apparatus utilizing holography

 #130
20060158983
2006-07-20

Optical reproducing method and optical reproducing system

 #131
20060126459
2006-06-15

Optical pickup device with phase shift mirror

 #132
20060126069
2006-06-15

Optical bench, integrated optical system, and optical alignment method

 #133
20060114791
2006-06-01

Ultra-high data density optical media system

 #134
20060114771
2006-06-01

Method and system for adjusting the servo control by monitoring the spot status on photo detector of optical pickup head

 #135
20060114562
2006-06-01

Optical element and optical pickup device used therewith

 #136
20060114535
2006-06-01

Laser light source device, hologram apparatus, and method for detecting laser light

 #137
20060109771
2006-05-25

Optical pickup device

 #138
20060109766
2006-05-25

Optical pickup having a polarization beam splitter

 #139
20060102826
2006-05-18

Optical pickup device

 #140
20060098553
2006-05-11

Beam splitter and optical pickup device

 #141
20060077784
2006-04-13

Optical pickup and optical disk apparatus

 #142
20050265207
2005-12-01

Optical pickup and optical disc apparatus

 #143
20050243688
2005-11-03

Optical scanning device

 #144
20050183643
2005-08-25

Method and apparatus for optical head and optical information reproducing

 #145
20050178945
2005-08-18

Optical head, optical reproduction apparatus and optical record and reproduction apparatus

 #146
20050169151
2005-08-04

Optical pickup and optical disk apparatus

 #147
20050145782
2005-07-07

Optical pickup device emitting linear polarized light with a 45 degree phase difference

 #148
20050135221
2005-06-23

Optical device

 #149
20050135220
2005-06-23

Optical head device and optical information recording or reproducing apparatus

 #150
20050117497
2005-06-02

Optical element and optical head device using it, and optical information device using this optical head device, and computer, optical disk player, car navigation system, optical disk recorder and optical disk server using this optical information device

 #151
20050111516
2005-05-26

Optical pickup apparatus

 #152
20050111337
2005-05-26

Optical pickup apparatus

 #153
20050052968
2005-03-10

Optical pickup using a wedge type beam splitter

 #154
20050030876
2005-02-10

Optical information recording apparatus and optical information reproducing apparatus using holography

 #155
20050025002
2005-02-03

Optical head and recording and/or reproducing apparatus employing same

 #156
20050007640
2005-01-13

Optical scanner with micro-optics for beam combination

 #157
20050001141
2005-01-06

Optical scanning device

 #158
15940157
2019-08-06

Unmanned aerial vehicle beam redirection system and method

 #159
15243484
2018-01-23

Optical storage system divider based draw verification with digitally synthesized writing laser pulse signal