ClassID:

198115

G11B7/1369 - page 2 - 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; Separate or integrated refractive elements, e.g. wave plates Active plates, e.g. liquid crystal panels or electrostrictive elements

Recent Application in this class:
#301
20060028959
2006-02-09

Aberration correction apparatus, and control apparatus, control method and control program of optical pickup

#302
20060028956
2006-02-09

Optical pickup and information processing device

#303
20060028935
2006-02-09

Optical pickup device, optical disk apparatus, and light-receiving unit

#304
20060028927
2006-02-09

Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method

#305
20060023607
2006-02-02

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

#306
20060012847
2006-01-19

Aberration correction element, optical pickup, and information equipment

#307
20060012846
2006-01-19

Aberration compensating device and optical head device

#308
20060007568
2006-01-12

Optical scanning device

#309
20060007385
2006-01-12

Optical attenuator and optical head device

#310
20060002254
2006-01-05

Tilt correcting apparatus and method, information recording apparatus, and information recording/reproducing apparatus

#311
20060002247
2006-01-05

Optical pickup and optical recording and/or reproducing apparatus adopting the same

#312
20050286385
2005-12-29

Optical element, optical head, optical recording reproducing apparatus and optical recording/ reproducing method

#313
20050286376
2005-12-29

Optical pickup for detecting thickness variation of a recording medium, and/or compensating for spherical aberration caused by thickness variation of a recording medium

#314
20050281503
2005-12-22

Electrowetting optical switch

#315
20050276297
2005-12-15

Optical pickup and optical disk apparatus

#316
20050276204
2005-12-15

Objective lens drive unit in an optical head

#317
20050276203
2005-12-15

Optical pickup apparatus

#318
20050270956
2005-12-08

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

#319
20050270955
2005-12-08

Optical pickup unit

#320
20050270924
2005-12-08

Device and method for controlling tilt servo

#321
20050265144
2005-12-01

Optical disk apparatus

#322
20050265143
2005-12-01

Optical head device

#323
20050259557
2005-11-24

Optical disk unit capable of restraining changes in light quantity

#324
20050259553
2005-11-24

Optical head device and optical information recording/reproduction apparatus

#325
20050254398
2005-11-17

Optical disc recording and/or reproducing apparatus and aberration adjustment method

#326
20050249064
2005-11-10

Optical element, objective optical system, optical pick-up apparatus, and drive apparatus of optical disk

#327
20050243673
2005-11-03

Device and method for controlling tilt servo

#328
20050237897
2005-10-27

Wavefront aberration correcting device and optical pickup equipped with the same

#329
20050237881
2005-10-27

Optical disc recording and/or reproducing apparatus and aberration adjustment method

#330
20050237880
2005-10-27

Optical disc recording and/or reproducing apparatus and aberration adjustment method

#331
20050219988
2005-10-06

Optical pickup apparatus

#332
20050213212
2005-09-29

Phase plate and an optical data recording/reproducing device

#333
20050207314
2005-09-22

Optical element, optical head, optical information device and method of controlling optical head

#334
20050207313
2005-09-22

Phase masks for use in holographic data storage

#335
20050207290
2005-09-22

Aberration correcting optical unit, optical pickup apparatus, and information recording/reproducing apparatus

#336
20050201249
2005-09-15

Objective optical element and optical pickup apparatus

#337
20050201220
2005-09-15

Optical pickup device that corrects the spot shape of reflected light beams

#338
20050180294
2005-08-18

Optical pick-up apparatus and optical information recording and/or reproducing apparatus

#339
20050174920
2005-08-11

Optical head device, optical recording device, and optical recording method

#340
20050174918
2005-08-11

Wavefront aberration compensation element, optical pickup, and optical disk apparatus

#341
20050174504
2005-08-11

Liquid crystal optical element and optical device

#342
20050174339
2005-08-11

Liquid crystal device, its driving method, and driving apparatus

#343
20050157634
2005-07-21

Optical disk with plural signal mark positions in a direction substantially perpendicular to tracks

#344
20050157614
2005-07-21

Optical recording medium processing device and focal point control method thereof

#345
20050135220
2005-06-23

Optical head device and optical information recording or reproducing apparatus

#346
20050135218
2005-06-23

Recording/reproducing apparatus with optical path correction system

#347
20050135206
2005-06-23

Optical element, optical head, optical recording reproducing apparatus and optical recording/reproducing method

#348
20050128893
2005-06-16

Optical head

#349
20050122882
2005-06-09

Diffractive optical element, objective optical system, optical pick-up device and optical information recording reproducing apparatus

#350
20050122857
2005-06-09

Optical pickup

#351
20050122461
2005-06-09

Liquid crystal device and its manufacturing method

#352
20050117494
2005-06-02

Optical head, optical recording medium recording and/or reproducing apparatus and recording and/or reproducing method using the optical head

#353
20050111337
2005-05-26

Optical pickup apparatus

#354
20050094535
2005-05-05

Optical recording device and aberration correction method

#355
20050094532
2005-05-05

Recording/reproducing apparatus for optical information recording medium and optical head

#356
20050088952
2005-04-28

Optical pick-up device and optical information recording reproducing apparatus

#357
20050087678
2005-04-28

Optical head apparatus and optical information recording or reproducing apparatus

#358
20050083824
2005-04-21

Optical pickup device and optical recording medium reproducing device

#359
20050083813
2005-04-21

Optical pickup apparatus and optical recording medium playback apparatus

#360
20050078574
2005-04-14

Optical head and optical recording/reproducing device using it and aberration correction method

#361
20050073936
2005-04-07

Light receiving and emitting unit and optical pickup using the same

#362
20050068879
2005-03-31

Optical scanning device

#363
20050063285
2005-03-24

Optical disc drive and optical pickup

#364
20050063281
2005-03-24

Optical pickup apparatus, optical element for optical pickup apparatus and producing method of optical element

#365
20050063280
2005-03-24

Optical pickup and optical recording/reproducing apparatus using the same

#366
20050063260
2005-03-24

Aberration adjustment device, method thereof, optical pickup, and optical information recording apparatus

#367
20050058027
2005-03-17

Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus

#368
20050052964
2005-03-10

Optical disk apparatus and method for recording and reproducing an optical disk

#369
20050047310
2005-03-03

Spherical aberration corrector plate comprising two wedge-shaped plates enabled to relatively shift

#370
20050036423
2005-02-17

Information recording device and information recording method

#371
20050030880
2005-02-10

Optical pickup, optical information recording/reproducing apparatus using the same, and phase variable wave plate used in the pickup and the apparatus

#372
20050030878
2005-02-10

Compatible optical pickup

#373
20050025000
2005-02-03

Optical head and optical disk apparatus

#374
20050002287
2005-01-06

Method for making an optical pickup apparatus having a movable unit supported by springs attached to a fixed unit