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Your search returned 286 patents.
( 369/112.24 in Current US Classification )
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Patent IDTitleDate Filed
6563767 Connecting unit for connecting the head unit to a head slider in a head actuator for recording and/or reproducing apparatus December 14, 1999
6549504 Dual optical pickup head for accessing both DVD and CD disc February 27, 2002
6545970 Near field magneto-optical head having read and write pinhole apertures August 3, 2001
6538961 Apparatus and method for recording an optical disc identification code May 29, 2002
6535473 Optical heads manufacturable in wafer form April 10, 2000
6529465 Optical system for optical disk drive March 1, 2001
6501723 Device suitable for manufacturing an optical registration carrier, such as a master plate April 2, 2002
6496453 Optical pickup March 26, 2001
6466536 Objective lens for high-density optical recording medium December 27, 1999
6442110 BEAM IRRADIATION APPARATUS, OPTICAL APPARATUS HAVING BEAM IRRADIATION APPARATUS FOR INFORMATION RECORDING MEDIUM, METHOD FOR MANUFACTURING ORIGINAL DISK FOR INFORMATION RECORDING MEDIUM, AND METHOD FOR MANUFACTURING INFORMATION RECORDING MEDIUM August 30, 1999
6438090 Optical pickup device November 19, 1999
6434088 Recording and reproducing apparatus having a magneto-optical head with an objective lens and laser-beam-permeable member January 13, 2000
6430139 Objective lens for high-density optical focusing, and optical pickup using the same September 28, 2000
6430138 Bifocal optical pickup head February 27, 2001
6418092 Methods for optical data storage and apparatus for same November 5, 1998
6414931 Lens driving device, optical head and optical disc system September 24, 1998
6366543 Optical pickup for discriminating between and reading different types of optical discs March 29, 2001
6353588 Objective lens used with high density optical recording medium December 15, 1999
6339577 Optical disk system, optical head device, and beam reshaping device July 13, 1999
6324141 Optical system for optical disc drive February 20, 2001
6324133 Optical recording and reproducing apparatus and optical recording and reproducing method July 9, 1999
6324129 Near field magneto-optical head having read and write pinhole apertures January 7, 1999
6314064 Optical pickup device and optical disc device October 15, 1998
6310852 Optical recording/reproducing apparatus October 8, 1999
6307689 Optical head and drive device for optical recording medium August 17, 2000
6307687 Optical pickup device capable of accurate tracking with simple structure May 11, 2000
6304526 Optical head March 12, 1999
6298026 Magneto-optical head apparatus using evanescent light September 22, 1999
6292453 Optical disc recording/reproduction apparatus having a lens group, focus, servo, and jog mode adjustment December 19, 1997
6288985 Microactuator for fine tracking in a magneto-optical drive September 4, 1998
6285645 Optical device May 26, 1998
6278560 Optical scanning device December 13, 1999
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