Inventor · disambiguated record
Shigeru Nakamura
Also filed as: NAKAMURA SHIGERU
208 granted patents·49 pending applications·3,505 citations·filing 1975–2024
99Inventor score
Top patents by PatentIndex Score
257 records- 0199US6291763B1Photoelectric conversion device and photo cellFUJI PHOTO FILM CO LTD·Filed 2000·Granted Sep 18, 2001·348 cites·15 claims
- 0298US5281797AShort wavelength optical disk head having a changeable apertureHITACHI LTD·Filed 1992·Granted Jan 25, 1994·143 cites·10 claims
- 0397US5467417APrism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the sameHITACHI LTD·Filed 1993·Granted Nov 14, 1995·214 cites·7 claims
- 0497US5334493APhotographic processing solution having a stabilizing ability and a method for processing a silver halide color photographic light-sensitive materialFUJI PHOTO FILM CO LTD·Filed 1993·Granted Aug 2, 1994·48 cites·10 claims
- 0597US4663751AOptical information processor for compensating offsetHITACHI LTD·Filed 1983·Granted May 5, 1987·58 cites·8 claims
- 0696US6958099B2High toughness steel material and method of producing steel pipes using sameSUMITOMO METAL IND·Filed 2003·Granted Oct 25, 2005·80 cites·7 claims
- 0796US4901325ASemiconductor laser deviceHITACHI LTD·Filed 1988·Granted Feb 13, 1990·81 cites·19 claims
- 0895US9995877B2Optical circuit element and configuration method for the optical circuit elementNEC CORP·Filed 2015·Granted Jun 12, 2018·15 cites·5 claims
- 0995US5361244AOptical head and information recording apparatusHITACHI LTD·Filed 1992·Granted Nov 1, 1994·93 cites·17 claims
- 1095US4970707AOptical tape apparatus with a tracking control mechanism and/or a focusing control mechanismHITACHI LTD·Filed 1988·Granted Nov 13, 1990·64 cites·26 claims
- 1195US4450547AFocal position detecting optical apparatusHITACHI LTD·Filed 1981·Granted May 22, 1984·53 cites·20 claims
- 1293US5270148AProcessing solution for silver halide color photographic materials and method for processing the materials with the processing solutionFUJI PHOTO FILM CO LTD·Filed 1992·Granted Dec 14, 1993·24 cites·29 claims
- 1393US4725721AAutofocusing control systemHITACHI LTD·Filed 1985·Granted Feb 16, 1988·53 cites·13 claims
- 1492US11416202B2Communication terminal, communication system, method of sharing data, and recording mediumHINOHARA HIROSHI·Filed 2020·Granted Aug 16, 2022·3 cites·16 claims
- 1592US8913860B2Optical waveguide structure and optical waveguide deviceUSHIDA JUN·Filed 2011·Granted Dec 16, 2014·17 cites·9 claims
- 1692US6679118B1Accelerometer and spherical sensor type measuring instrumentTOKIMEC INC·Filed 2000·Granted Jan 20, 2004·47 cites·18 claims
- 1792US4046780APreparation of phthalic anhydrideNIPPON CATALYTIC CHEM IND·Filed 1975·Granted Sep 6, 1977·29 cites·9 claims
- 1890US8873906B2Optical conversion element and optical conversion element manufacturing methodTOKUSHIMA MASATOSHI·Filed 2011·Granted Oct 28, 2014·13 cites·16 claims
- 1990US8693880B2Wavelength path communication node apparatus, wavelength path communication control method, and recording mediumSAKAUCHI MASAHIRO·Filed 2009·Granted Apr 8, 2014·18 cites·10 claims
- 2089US6400664B1Optical head including electrical circuit which produces focus error signal and tracking error signal unaffected by variations in intensity distributions of reflected light beamsHITACHI LTD·Filed 1999·Granted Jun 4, 2002·48 cites·6 claims
- 2189US5627926APrism plate for efficiently emitting light flux within a predetermined range, and liquid crystal indicator and indicator illumination method using the sameHITACHI LTD·Filed 1995·Granted May 6, 1997·87 cites·11 claims
- 2289US4770507APrism optics and optical information processing apparatusHITACHI LTD·Filed 1985·Granted Sep 13, 1988·38 cites·23 claims
- 2388US6853013B2Light-emitting element and method of producing the sameFUJI PHOTO FILM CO LTD·Filed 2003·Granted Feb 8, 2005·68 cites·9 claims
- 2488US4960828AScratch resistant top coating compositionKANSAI PAINT CO LTD·Filed 1988·Granted Oct 2, 1990·59 cites·8 claims
- 2588US4742218AFocus error detection apparatus utilizing focusing an front and rear sides of focal planesHITACHI LTD·Filed 1986·Granted May 3, 1988·44 cites·13 claims
- 2687US11394757B2Communication terminal, communication system, and method of sharing dataTAKAHASHI KAZUNOBU·Filed 2020·Granted Jul 19, 2022·3 cites·13 claims
- 2787US5377212ASolid-state laser device including uniaxial laser crystal emitting linearly polarized fundamental wave and nonlinear optical crystal emitting linearly polarized harmonic waveHITACHI LTD·Filed 1992·Granted Dec 27, 1994·57 cites·40 claims
- 2887US4727798APopcorn processing machineNAKAMURA SHIGERU·Filed 1986·Granted Mar 1, 1988·50 cites·5 claims
- 2987US4532522AOptical recording apparatusHITACHI LTD·Filed 1982·Granted Jul 30, 1985·31 cites·18 claims
- 3086US5418763ADisc recording systemHITACHI LTD·Filed 1993·Granted May 23, 1995·48 cites·29 claims
- 3185US6785203B2Optical lens for optical disc drive with aberration suppression for recording/reproducing for a plurality of optical disc typesPENTAX CORP·Filed 2001·Granted Aug 31, 2004·20 cites·14 claims
- 3285US5245491AMagneto-optical head employing optical fiber connected stationary and movable portionsHITACHI CABLE·Filed 1990·Granted Sep 14, 1993·43 cites·17 claims
- 3384US10719228B2Image processing apparatus, image processing system, and image processing methodWATANABE AYAKO·Filed 2018·Granted Jul 21, 2020·4 cites·11 claims
- 3483US6272100B1Information recording/reproducing apparatus and method and information recording mediumHITACHI LTD·Filed 1998·Granted Aug 7, 2001·26 cites·8 claims
- 3583US4873678AOptical head and optical information processor using the sameHITACHI LTD·Filed 1987·Granted Oct 10, 1989·32 cites·20 claims
- 3683US2025054208A1Processing apparatus, system, biometric authentication system, processing method, and computer readable mediumNEC CORP·Filed 2024·Application pending·0 cites
- 3783US2025045985A1Processing apparatus, system, biometric authentication system, processing method, and computer readable mediumNEC CORP·Filed 2024·Application pending·0 cites
- 3882US6721242B2Optical detector having three light receiving areasHITACHI LTD·Filed 2002·Granted Apr 13, 2004·14 cites·18 claims
- 3982US5329601ASemiconductor optical waveguide type switch including light control meansNEC CORP·Filed 1992·Granted Jul 12, 1994·55 cites·18 claims
- 4082US5313448ALaser device driven by a periodic waveform optimized for reducing laser noiseHITACHI LTD·Filed 1992·Granted May 17, 1994·31 cites·17 claims
- 4181US9274280B2Optical waveguide type optical terminatorUSHIDA JUN·Filed 2012·Granted Mar 1, 2016·5 cites·4 claims
- 4281US5221597AMethod for processing silver halide color photographic materialsFUJI PHOTO FILM CO LTD·Filed 1991·Granted Jun 22, 1993·11 cites·18 claims
- 4381US5070004ABleaching starter and processing of color photographic silver halide photosensitive material using the sameFUJI PHOTO FILM CO LTD·Filed 1990·Granted Dec 3, 1991·11 cites·13 claims
- 4481US4525826AOptical track position detecting apparatus and optical information processor using the sameHITACHI LTD·Filed 1982·Granted Jun 25, 1985·22 cites·5 claims
- 4580US8811817B2Optical signal transmission device, optical signal reception device, wavelength division multiplexing optical communication device, and wavelength path systemSAKAUCHI MASAHIRO·Filed 2010·Granted Aug 19, 2014·5 cites·19 claims
- 4680US7292519B2Optical head with lasers and mirrors in a recess formed in a substrateHITACHI LTD·Filed 2005·Granted Nov 6, 2007·6 cites·2 claims
- 4780US6680888B2Information recording/reproducing apparatus and method and information recording mediumHITACHI LTD·Filed 2001·Granted Jan 20, 2004·9 cites·2 claims
- 4879US6778486B1Laser module, optical head and optical information recording and reproducing apparatusHITACHI LTD·Filed 2000·Granted Aug 17, 2004·17 cites·13 claims
- 4979US5449593AProcessing solution for silver halide color photographic materials and method for processing the materials with use of the processing solutionsFUJI PHOTO FILM CO LTD·Filed 1992·Granted Sep 12, 1995·9 cites·19 claims
- 5078US10761718B2Electronic whiteboard, method for image processing in electronic whiteboard, and recording medium containing computer program of electronic whiteboardRICOH CO LTD·Filed 2016·Granted Sep 1, 2020·2 cites·9 claims
Showing the top 50 of 257 patent records by PatentIndex Score.
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