using electro-optical elements

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CPC
G11B7/08552

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GPHYSICS G11Information storage G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER G11B7/00Recording or reproducing by optical means

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G11B7/08552using electro-optical elements

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Patents Grantslast 30 patents

Information Patent Grant
Radial servo device for super-resolution optical disc and servo con...
- Patent number 11,227,632
- Issue date Jan 18, 2022
- Shanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
- Hao Ruan
- G11 - INFORMATION STORAGE
Information Patent Grant
Electronically translocatable optical stylet
- Patent number 6,269,066
- Issue date Jul 31, 2001
- Roland H Chase
- G11 - INFORMATION STORAGE
Information Patent Grant
Light source unit capable of changing size of light beam spot and o...
- Patent number 5,175,642
- Issue date Dec 29, 1992
- Ricoh Company, Ltd.
- Hiroyoshi Funato
- G02 - OPTICS
Information Patent Grant
Optical information processor and method for accessing rotating rec...
- Patent number 4,802,153
- Issue date Jan 31, 1989
- Hitachi, Ltd.
- Keiji Kataoka
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
RADIAL SERVO DEVICE FOR SUPER-RESOLUTION OPTICAL DISC AND SERVO CON...
- Publication number 20210151079
- Publication date May 20, 2021
- Hao RUAN
- G11 - INFORMATION STORAGE
Information Patent Application
Micro-optical pickup
- Publication number 20090168625
- Publication date Jul 2, 2009
- Chi-Hung Lee
- G11 - INFORMATION STORAGE
Information Patent Application
Holographic scanning device
- Publication number 20070115789
- Publication date May 24, 2007
- Coen Liedenbaum
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Beam shaping device, an optical head, and a master disk recording a...
- Publication number 20040202086
- Publication date Oct 14, 2004
- Shinya Abe
- G02 - OPTICS