ClassID:

198213

G11B7/25 - 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; Record carriers characterised by shape, structure or physical properties, or by the selection of the material characterised by the selection of the material of recording layers comprising organic materials only containing liquid crystals

Recent Application in this class:
#1
20230109287
2023-04-06

COMPOUND, NON-LINEAR OPTICAL MATERIAL, RECORDING MEDIUM, METHOD FOR RECORDING INFORMATION, AND METHOD FOR READING INFORMATION

#2
20130033975
2013-02-07

Reversible recording medium based on optical storage of information, method of reversible recording on such a medium

#3
20110235485
2011-09-29

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

#4
20110090780
2011-04-21

INFORMATION RECORDING MEDIUM AND METHOD FOR PRODUCING THE SAME, RECORDING OR REPRODUCING METHOD, AND OPTICAL INFORMATION RECORDING AND REPRODUCING DEVICE

#5
20110089372
2011-04-21

Optically anisotropic material, optical element and optical information writing/reading device

#6
20110019511
2011-01-27

Optical memories, method for reading and writing such optical memories, and device for reading and writing such memories

#7
20090250676
2009-10-08

Liquid crystalline organic semiconductor material, and semiconductor element or information recording medium using the same

#8
20090233014
2009-09-17

Photoactive Film, Its Preparation And Use, And Preparation Of Surface Relief And Optically Anisotropic Structures By Irradiating Said Film

#9
20090209741
2009-08-20

Polyfunctional compound, optical recording material, optical recording medium, optical recording/reproducing apparatus, optical waveguide material, and photo-alignment film material

#10
20090161502
2009-06-25

Information recording medium and method for manufacturing the same, and optical information recording/reproducing device

#11
20090067313
2009-03-12

Information-recording medium and optical information-recording/reproducing device

#12
20080283804
2008-11-20

Two-photon or higher-order absorbing optical materials for generation of reactive species

#13
20080258103
2008-10-23

Method for preparation of anisotropic materials

#14
20080220339
2008-09-11

Film Forming Photosensitive Materials for the Light Induced Generation of Optical Anisotrophy

#15
20080219129
2008-09-11

Filter For Optical Recording Medium, Optical Recording Medium, Method For Producing the Same, Optical Recording Method and Optical Reproducing Method

#16
20080187844
2008-08-07

Data storage

#17
20080152830
2008-06-26

Optical Recording Medium Comprising Molecules With Hydrogen Bonds

#18
20080130458
2008-06-05

Information recording medium and optical information recording/reproducing apparatus

#19
20080013138
2008-01-17

Hologram recording material, hologram recording medium and hologram recording method

#20
20070184234
2007-08-09

Photo-responsive high-molecular compound, photo-responsive high-molecular composition, dicarboxylic acid monomer, polyester, optical recording medium and optical record reproducing device

#21
20070147213
2007-06-28

Optical information carrier containing bragg reflectors

#22
20070117027
2007-05-24

Hologram-recording material, hologram-recording medium, and hologram-recording method

#23
20070115790
2007-05-24

Holographic recording medium and holographic recording process using the same

#24
20070026319
2007-02-01

Optical information recording media and method for manufacturing them

#25
20060280106
2006-12-14

Optical record carrier

#26
20060246375
2006-11-02

Information recording medium and its manufacturing method,recording/preproducing method, and optical information recording/reproducing device

#27
20060204751
2006-09-14

Content information layer for an optical record carrier

#28
20060193022
2006-08-31

Optical recording apparatus and optical recording/reproducing apparatus

#29
20060152789
2006-07-13

Multi-stack rolled-up information carrier

#30
20060097225
2006-05-11

Optical recording material

#31
20060087948
2006-04-27

Optimized medium with anisotropic dipole emission for fluorescent single or multilayer storage

#32
20060016516
2006-01-26

Method for preparation of anisotropic materials

#33
20050254405
2005-11-17

Multi-layer optical storage using pre-orientation in a glass matrix

#34
20050226130
2005-10-13

Optical data storage

#35
20050214681
2005-09-29

Limited play optically-readable medium with liquid crystals and methodology therefor

#36
20050070678
2005-03-31

Homopolymers which exhibit a high level of photo-inducable birefringence