Inventor · disambiguated record
Yukio Kurata
Also filed as: KURATA YUKIO
68 granted patents·2 pending applications·1,868 citations·filing 1986–2006
99Inventor score
Top patents by PatentIndex Score
70 records- 0198US5085496AOptical element and optical pickup device comprising itSHARP KK·Filed 1990·Granted Feb 4, 1992·242 cites·30 claims
- 0294US5446719AOptical information reproducing apparatusSHARP KK·Filed 1993·Granted Aug 29, 1995·73 cites·23 claims
- 0393US4988165AObject lens driving deviceSHARP KK·Filed 1989·Granted Jan 29, 1991·55 cites·9 claims
- 0492US6388822B1Optical pickup device and optical recording mediumSHARP KK·Filed 2000·Granted May 14, 2002·37 cites·15 claims
- 0592US4947261APortable image input deviceSHARP KK·Filed 1988·Granted Aug 7, 1990·88 cites·14 claims
- 0690US4904856AOptical pickup device with diffraction sensingSHARP KK·Filed 1988·Granted Feb 27, 1990·45 cites·5 claims
- 0789US5128914AOptical pickup apparatus utilizing a diffraction deviceSHARP KK·Filed 1990·Granted Jul 7, 1992·49 cites·10 claims
- 0888US6868055B2Optical pickupSHARP KK·Filed 2001·Granted Mar 15, 2005·26 cites·37 claims
- 0988US5502457AFiber optic face plate for a seamless modular displaySHARP KK·Filed 1994·Granted Mar 26, 1996·77 cites·7 claims
- 1088US5465315ADisplay apparatus having a plurality of display devicesSHARP KK·Filed 1992·Granted Nov 7, 1995·76 cites·15 claims
- 1187US6741406B2Objective lens, optical pickup-device equipped with same and assembling method of sameSHARP KK·Filed 2001·Granted May 25, 2004·37 cites·18 claims
- 1287US6021239APhotocoupler and method for producing the sameSHARP KK·Filed 1997·Granted Feb 1, 2000·86 cites·11 claims
- 1387US5013494AProcess for preparing blazed hologramsSHARP KK·Filed 1989·Granted May 7, 1991·56 cites·11 claims
- 1486US5515354AOptical pickupSHARP KK·Filed 1994·Granted May 7, 1996·40 cites·11 claims
- 1584US7106682B2Optical pickupSHARP KK·Filed 2005·Granted Sep 12, 2006·6 cites·8 claims
- 1683US6822799B2Exposing apparatus and exposing method for microlens arraySHARP KK·Filed 2003·Granted Nov 23, 2004·29 cites·28 claims
- 1782US5111449AOptical pick-up device using diffraction grating element having two sub-regionsSHARP KK·Filed 1990·Granted May 5, 1992·34 cites·8 claims
- 1881US7251076B1Optical component and method for producing thick polyimide filmSHARP KK·Filed 2000·Granted Jul 31, 2007·15 cites·4 claims
- 1981US5410622AOptical integrated circuit having light detectorSHARP KK·Filed 1993·Granted Apr 25, 1995·59 cites·8 claims
- 2080US6626584B2Two-way optical communication device, two-way optical communication system, and method for assembling two-way optical communication deviceSHARP KK·Filed 2001·Granted Sep 30, 2003·24 cites·21 claims
- 2179US6516115B1Two-way optical communication device and two-way optical communication apparatusSHARP KK·Filed 2000·Granted Feb 4, 2003·24 cites·15 claims
- 2279US5391865AOptical pickup apparatus and optical grating assembly thereforSHARP KK·Filed 1991·Granted Feb 21, 1995·33 cites·98 claims
- 2378US5279924AManufacturing method of optical diffraction grating element with serrated gratings having uniformly etched groovesSHARP KK·Filed 1992·Granted Jan 18, 1994·47 cites·12 claims
- 2478US5049732AOptical pickup device with diffraction deviceSHARP KK·Filed 1989·Granted Sep 17, 1991·20 cites·9 claims
- 2577US6744568B2Objective lens, method for correcting manufacturing error thereof, and optical pick-up device using the sameSHARP KK·Filed 2002·Granted Jun 1, 2004·18 cites·24 claims
- 2675US7038995B2Optical pickup for optically reading/writing data including convergent and aberration correction optical systemsSHARP KK·Filed 2001·Granted May 2, 2006·16 cites·19 claims
- 2775US6937381B2Optical pickup deviceSHARP KK·Filed 2002·Granted Aug 30, 2005·10 cites·8 claims
- 2874US5283690AOptical diffraction grating elementSHARP KK·Filed 1990·Granted Feb 1, 1994·31 cites·18 claims
- 2973US5253237AOptical head deviceSHARP KK·Filed 1990·Granted Oct 12, 1993·23 cites·55 claims
- 3072US5050155APick-up device for use in an optical information recording system utilizing a diffraction grating with blaze characteristicsSHARP KK·Filed 1989·Granted Sep 17, 1991·15 cites·12 claims
- 3170US5652816AOptical coupler and method for producing the sameSHARP KK·Filed 1996·Granted Jul 29, 1997·35 cites·6 claims
- 3270US5408450AOptical pickup apparatusSHARP KK·Filed 1993·Granted Apr 18, 1995·19 cites·7 claims
- 3369US5408264AThree-dimensional image display apparatus for optically synthesizing images formed on different surfaces on a display screenSHARP KK·Filed 1992·Granted Apr 18, 1995·27 cites·6 claims
- 3468US6487015B2Diffraction grating having multiple gratings with different cycles for generating multiple beams and optical pickup using such diffraction gratingSHARP KK·Filed 1999·Granted Nov 26, 2002·19 cites·13 claims
- 3567US4812638AFocusing error detector and optical data detecting device incorporating the focusing error detectorSHARP KK·Filed 1987·Granted Mar 14, 1989·16 cites·6 claims
- 3666US6525296B2Method of processing and optical componentsSHARP KK·Filed 2001·Granted Feb 25, 2003·9 cites·11 claims
- 3766US6030540AMethod for producing tapered waveguideSHARP KK·Filed 1997·Granted Feb 29, 2000·28 cites·10 claims
- 3866US5251280ALiquid crystal display apparatusSHARP KK·Filed 1991·Granted Oct 5, 1993·28 cites·8 claims
- 3963US6078707AWaveguide-photodetector, method for producing the same, waveguide usable in the waveguide-photodetector, and method for producing the sameSHARP KK·Filed 1996·Granted Jun 20, 2000·30 cites·11 claims
- 4062US6438089B1Optical pickup deviceSHARP KK·Filed 2000·Granted Aug 20, 2002·4 cites·5 claims
- 4162US5428595AOptical information recording and reproducing deviceSHARP KK·Filed 1993·Granted Jun 27, 1995·13 cites·4 claims
- 4262US5410529AOptical pickup apparatusSHARP KK·Filed 1993·Granted Apr 25, 1995·14 cites·21 claims
- 4361US5483508AOptical recording and reproducing apparatus using a hologram to detect and judge a plurality of pit patternsSHARP KK·Filed 1993·Granted Jan 9, 1996·13 cites·5 claims
- 4460US6979134B2Optical communication moduleSHARP KK·Filed 2001·Granted Dec 27, 2005·7 cites·4 claims
- 4560US5428472AOptical scan device having an optical diffraction grating elementSHARP KK·Filed 1993·Granted Jun 27, 1995·9 cites·3 claims
- 4659US7031064B2Method of microlens array and projection type of liquid crystal display apparatusSHARP KK·Filed 2003·Granted Apr 18, 2006·6 cites·2 claims
- 4758US6731856B1Organic waveguide and manufacturing method thereof and optical part using the sameSHARP KK·Filed 1999·Granted May 4, 2004·20 cites·20 claims
- 4858US5726962ACompact optical pickup device with beam splitterSHARP KK·Filed 1995·Granted Mar 10, 1998·14 cites·28 claims
- 4958US5509094AMode splitter and a magneto-optical disk pick-up device having the mode splitterSHARP KK·Filed 1994·Granted Apr 16, 1996·17 cites·9 claims
- 5058US5283772AOptical headSHARP KK·Filed 1993·Granted Feb 1, 1994·11 cites·12 claims
Showing the top 50 of 70 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →