Inventor · disambiguated record
Isao Ichimura
Also filed as: ICHIMURA ISAO
61 granted patents·7 pending applications·1,040 citations·filing 1989–2018
99Inventor score
Top patents by PatentIndex Score
68 records- 0196US5764613Aoptical pickup apparatusSONY CORP·Filed 1996·Granted Jun 9, 1998·117 cites·11 claims
- 0294US8335353B2Biometrics authentication systemYAMAMOTO KENJI·Filed 2008·Granted Dec 18, 2012·39 cites·24 claims
- 0394US8106994B2Image pickup apparatus having a microlens arrayICHIMURA ISAO·Filed 2009·Granted Jan 31, 2012·34 cites·7 claims
- 0493US8451352B2Image pickup apparatusHAYASAKA KENGO·Filed 2009·Granted May 28, 2013·19 cites·8 claims
- 0592US5841513AApparatus for reproducing sound signals recorded on a motion picture film with digital sound trackSONY CORP·Filed 1997·Granted Nov 24, 1998·68 cites·29 claims
- 0690US8237843B2Imaging deviceYAMAMOTO KENJI·Filed 2010·Granted Aug 7, 2012·10 cites·5 claims
- 0790US7550707B2Biometrics authentication system with authentication based upon multiple layersSONY CORP·Filed 2008·Granted Jun 23, 2009·43 cites·9 claims
- 0889US6590914B1Semiconductor laser drive circuitSONY CORP·Filed 2000·Granted Jul 8, 2003·34 cites·6 claims
- 0989US6404710B1Position controller and position control method of optical system and recording/reproducing apparatus and driving method thereofSONY CORP·Filed 2000·Granted Jun 11, 2002·28 cites·24 claims
- 1089US6097688ARecording/reproducing apparatus and recording/reproducing method for optical recording mediaSONY CORP·Filed 1997·Granted Aug 1, 2000·55 cites·25 claims
- 1188US5712842AOptical pick-up deviceSONY CORP·Filed 1996·Granted Jan 27, 1998·55 cites·2 claims
- 1287US8305429B2Image pickup apparatus and image pickup methodKAJIHARA JUNJI·Filed 2007·Granted Nov 6, 2012·14 cites·23 claims
- 1384US7842366B2Multi-layer optical information recording mediumSONY CORP·Filed 2005·Granted Nov 30, 2010·6 cites·11 claims
- 1484US6222814B1Recording/reproducing apparatus and method for phase-change optical discSONY CORP·Filed 1999·Granted Apr 24, 2001·39 cites·8 claims
- 1582US8130310B2Image pickup apparatusYAMAMOTO KENJI·Filed 2008·Granted Mar 6, 2012·6 cites·12 claims
- 1682US6307689B1Optical head and drive device for optical recording mediumSONY CORP·Filed 1999·Granted Oct 23, 2001·36 cites·7 claims
- 1782US6292453B1Optical disc recording/reproduction apparatus having a lens group, focus, servo, and jog mode adjustmentSONY CORP·Filed 1997·Granted Sep 18, 2001·37 cites·16 claims
- 1880US6987723B2Optical recording medium with high density track pitch and optical disk drive for recording and playback of the sameSONY CORP·Filed 2005·Granted Jan 17, 2006·3 cites·1 claims
- 1978US6324133B1Optical recording and reproducing apparatus and optical recording and reproducing methodSONY CORP·Filed 1999·Granted Nov 27, 2001·30 cites·16 claims
- 2077US6115347AOptical pick-up device, optical recording/reproducing apparatus and objective lensSONY CORP·Filed 1997·Granted Sep 5, 2000·28 cites·9 claims
- 2177US6005834AOptical recording medium recording and reproducing apparatus and optical pickup deviceSONY CORP·Filed 1997·Granted Dec 21, 1999·30 cites·14 claims
- 2276US6041031AOptical disc recording/reproduction apparatus and methodSONY CORP·Filed 1997·Granted Mar 21, 2000·24 cites·11 claims
- 2375US6414931B1Lens driving device, optical head and optical disc systemSONY CORP·Filed 1998·Granted Jul 2, 2002·26 cites·12 claims
- 2474US7394049B2Optical disk apparatus and pickup unitSONY CORP·Filed 2006·Granted Jul 1, 2008·2 cites·17 claims
- 2574US6552968B1Optical recording medium, method of producing same, and optical recording and reproduction deviceSONY CORP·Filed 2000·Granted Apr 22, 2003·8 cites·26 claims
- 2673US7539108B2Optical information reproduction apparatus and optical information reproduction methodSONY CORP·Filed 2005·Granted May 26, 2009·2 cites·4 claims
- 2772US7126899B2Optical recording medium processing device and focal point control method thereofSONY CORP·Filed 2003·Granted Oct 24, 2006·8 cites·1 claims
- 2871US8111595B2Optical disk recording and playback apparatus and signal detection method utilizing a differential push-pull method and a phase difference methodICHIMURA ISAO·Filed 2005·Granted Feb 7, 2012·2 cites·8 claims
- 2971US6934224B1Optical recording medium/system with heat-dissipating and light reflecting layersSONY CORP·Filed 2000·Granted Aug 23, 2005·7 cites·5 claims
- 3071US6570827B1Optical element for correction of chromatic aberration, optical pick-up device having optical element for correction of chromatic aberration, optical reproducing device having optical pick-up device and optical recording and reproducing deviceSONY CORP·Filed 1999·Granted May 27, 2003·21 cites·11 claims
- 3170US6987725B2Optical recording medium with high density track pitch and optical disk drive for recording and playback of the sameSONY CORP·Filed 2005·Granted Jan 17, 2006·1 cites·1 claims
- 3270US6882616B2Optical recording medium with high density track pitch and optical disk device for recording and playback of the sameSONY CORP·Filed 2001·Granted Apr 19, 2005·6 cites·6 claims
- 3369US7031233B2Optical recording/reproduction device and focal point control methodSONY CORP·Filed 2003·Granted Apr 18, 2006·7 cites·20 claims
- 3468US8466475B2Light detecting chip and light detecting device provided with light detecting chipICHIMURA ISAO·Filed 2010·Granted Jun 18, 2013·1 cites·19 claims
- 3568US8463001B2Image pickup apparatusHAYASAKA KENGO·Filed 2008·Granted Jun 11, 2013·0 cites·8 claims
- 3667US6683846B2Information recording disc having an anti-reflection layer and information recording/reproducing apparatusSONY CORP·Filed 2000·Granted Jan 27, 2004·6 cites·5 claims
- 3767US6600714B2Optical recording medium, optical pickup and optical recording and/or reproducing apparatusSONY CORP·Filed 2001·Granted Jul 29, 2003·12 cites·11 claims
- 3866US8324597B2Light detection deviceFUKUMOTO ATSUSHI·Filed 2010·Granted Dec 4, 2012·1 cites·10 claims
- 3966US7301875B2Information recording device and information recording methodSONY CORP·Filed 2004·Granted Nov 27, 2007·6 cites·10 claims
- 4064US6826133B2Optimizing a distance between lenses of a two objective lens for minimizing wavefront aberration and offsetting focus controlSONY CORP·Filed 1999·Granted Nov 30, 2004·17 cites·25 claims
- 4164US6683845B2Optical recording medium, method of producing same, and optical recording and reproduction deviceSONY CORP·Filed 2002·Granted Jan 27, 2004·4 cites·3 claims
- 4263US8170300B2Biometric image pickup apparatusYAMAMOTO KENJI·Filed 2008·Granted May 1, 2012·4 cites·14 claims
- 4361US5550603AMotion picture film with digital sound trackSONY CORP·Filed 1993·Granted Aug 27, 1996·12 cites·29 claims
- 4460US6058095AObjective lens having a doublet lens with high numerical apertureSONY CORP·Filed 1997·Granted May 2, 2000·21 cites·8 claims
- 4559US8180119B2Imaging apparatus and imaging methodKAJIHARA JUNJI·Filed 2007·Granted May 15, 2012·4 cites·9 claims
- 4659US6104691AObjective lens unit and recording/reproduction apparatusSONY CORP·Filed 1997·Granted Aug 15, 2000·13 cites·25 claims
- 4758US6055113AOptical pickup and an optical pickup objective lense assembling methodSONY CORP·Filed 1998·Granted Apr 25, 2000·12 cites·8 claims
- 4858US4977461ADropout detecting circuit with one-half wavelength delaySONY CORP·Filed 1989·Granted Dec 11, 1990·10 cites·6 claims
- 4957US6674696B1Focus controlling apparatus and method, and optical disc driveSONY CORP·Filed 1998·Granted Jan 6, 2004·12 cites·4 claims
- 5057US5032915AApparatus for detecting positive and negative noise signals in a video signalSONY CORP·Filed 1989·Granted Jul 16, 1991·13 cites·6 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →