Inventor · disambiguated record
Kiyoshi Ohsato
Also filed as: OHSATO KIYOSHI
44 granted patents·1,264 citations·filing 1983–2001
99Inventor score
Files withSONY CORP44
Top patents by PatentIndex Score
44 records- 0196US5764613Aoptical pickup apparatusSONY CORP·Filed 1996·Granted Jun 9, 1998·117 cites·11 claims
- 0295US4612437AFocussing error detecting apparatus for use in an optical disc reproducing device, an auto-focus camera or image-pickup deviceSONY CORP·Filed 1984·Granted Sep 16, 1986·52 cites·15 claims
- 0394US4775968ATracking error detecting system for optical headSONY CORP·Filed 1985·Granted Oct 4, 1988·59 cites·3 claims
- 0492US5841513AApparatus 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
- 0592US4631397AFocussing error detecting apparatus employing a composite lensSONY CORP·Filed 1984·Granted Dec 23, 1986·39 cites·2 claims
- 0690US6721259B1Optical head and recording/reproducing deviceSONY CORP·Filed 1999·Granted Apr 13, 2004·61 cites·12 claims
- 0789US6097688ARecording/reproducing apparatus and recording/reproducing method for optical recording mediaSONY CORP·Filed 1997·Granted Aug 1, 2000·55 cites·25 claims
- 0889US5513158AOptical disk pickup device with focusing correction by electrostrictionSONY CORP·Filed 1995·Granted Apr 30, 1996·51 cites·9 claims
- 0988US6353592B1Optical recording medium and optical disk deviceSONY CORP·Filed 1998·Granted Mar 5, 2002·52 cites·36 claims
- 1088US5712842AOptical pick-up deviceSONY CORP·Filed 1996·Granted Jan 27, 1998·55 cites·2 claims
- 1188US5442615AOptical plate for correcting comatic aberrationSONY CORP·Filed 1992·Granted Aug 15, 1995·48 cites·5 claims
- 1288US4796250AOptical recording and reproducing apparatus including a disc extraction area for power setting a laserSONY CORP·Filed 1987·Granted Jan 3, 1989·35 cites·10 claims
- 1385US5159589AOptical recording and/or reproducing apparatusSONY CORP·Filed 1990·Granted Oct 27, 1992·38 cites·3 claims
- 1484US4733385ASignal recording and reproducing apparatus for an opto-magnetic diskSONY CORP·Filed 1986·Granted Mar 22, 1988·30 cites·6 claims
- 1582US6292453B1Optical 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
- 1681US5515348AOptical disk pickup device with tilt compensation by electrostrictionSONY CORP·Filed 1994·Granted May 7, 1996·26 cites·6 claims
- 1779US5191571ATracking control method and apparatus for an optical disc systemSONY CORP·Filed 1991·Granted Mar 2, 1993·27 cites·10 claims
- 1878US5140577ATracking error signal generating circuit for a multichannel type optical disc playerSONY CORP·Filed 1990·Granted Aug 18, 1992·27 cites·5 claims
- 1977US6366543B2Optical pickup for discriminating between and reading different types of optical discsSONY CORP·Filed 2001·Granted Apr 2, 2002·11 cites·6 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
- 2376US5239528AOptical head control circuit for optical tape recording/reproducing apparatusSONY CORP·Filed 1990·Granted Aug 24, 1993·24 cites·6 claims
- 2475US6414931B1Lens driving device, optical head and optical disc systemSONY CORP·Filed 1998·Granted Jul 2, 2002·26 cites·12 claims
- 2575US5303250ALaser light generating apparatusSONY CORP·Filed 1992·Granted Apr 12, 1994·34 cites·14 claims
- 2672US6222803B1Optical pickup for discriminating between and reading different types of optical discsSONY CORP·Filed 1996·Granted Apr 24, 2001·22 cites·24 claims
- 2768US5063555ARotary optical headSONY CORP·Filed 1990·Granted Nov 5, 1991·17 cites·9 claims
- 2862US5559766ARotary drum tape recording apparatus with controlling optical recording tracks using stored results of scanning of reference tracksSONY CORP·Filed 1995·Granted Sep 24, 1996·16 cites·3 claims
- 2961US4742506ATracking error detecting apparatus for an optical head with skew error reduction by using an inclined header portionSONY CORP·Filed 1985·Granted May 3, 1988·13 cites·1 claims
- 3060US6058095AObjective lens having a doublet lens with high numerical apertureSONY CORP·Filed 1997·Granted May 2, 2000·21 cites·8 claims
- 3159US6104691AObjective lens unit and recording/reproduction apparatusSONY CORP·Filed 1997·Granted Aug 15, 2000·13 cites·25 claims
- 3258US6055113AOptical pickup and an optical pickup objective lense assembling methodSONY CORP·Filed 1998·Granted Apr 25, 2000·12 cites·8 claims
- 3358US5168487AOptical recording and/or reproducing apparatusSONY CORP·Filed 1990·Granted Dec 1, 1992·11 cites·8 claims
- 3457US6674696B1Focus controlling apparatus and method, and optical disc driveSONY CORP·Filed 1998·Granted Jan 6, 2004·12 cites·4 claims
- 3557US5090004ATracking system for optical recording and/or reproducing apparatus employing a main light beam and a plurality of auxiliary light beamsSONY CORP·Filed 1990·Granted Feb 18, 1992·11 cites·6 claims
- 3656US5828453ALens designing method and objective lens apparatus with two lensesSONY CORP·Filed 1997·Granted Oct 27, 1998·11 cites·19 claims
- 3756US5774281AOptical pickup device for light collection onto an optical recording mediumSONY CORP·Filed 1996·Granted Jun 30, 1998·10 cites·14 claims
- 3853US5260927AOptical pickup device for recordable disc and dichroic mirrorSONY CORP·Filed 1992·Granted Nov 9, 1993·10 cites·2 claims
- 3950US5786947AOptical pickup device with a floating elementSONY CORP·Filed 1997·Granted Jul 28, 1998·7 cites·11 claims
- 4049US4766585ATracking error detecting apparatus for optical headSONY CORP·Filed 1985·Granted Aug 23, 1988·7 cites·1 claims
- 4148US4593386AOptical disc player with improved tracking controlSONY CORP·Filed 1983·Granted Jun 3, 1986·6 cites·6 claims
- 4246US5023855AOptical disc access control system that counts tracks using tracking control signalSONY CORP·Filed 1988·Granted Jun 11, 1991·6 cites·9 claims
- 4344US5572380ADisc playback apparatus with automatic disc changerSONY CORP·Filed 1992·Granted Nov 5, 1996·5 cites·4 claims
- 4443USRE40371EOptical disc recording/reproduction apparatus and methodSONY CORP·Filed 2000·Granted Jun 10, 2008·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →