Inventor · disambiguated record
Toru Akiyama
Also filed as: AKIYAMA TORU · OHGISHI TSUTOMU
37 granted patents·4 pending applications·469 citations·filing 1977–2014
98Inventor score
Files withPIONEER ELECTRONIC CORP19SANYO ELECTRIC CO6UNIVERSAL PIONEER CORP4DAIKIN IND LTD2EBARA CORP1
Top patents by PatentIndex Score
41 records- 0194US4236251AFrequency synthesizer receiver having memory for storing frequency dataSANYO ELECTRIC CO·Filed 1977·Granted Nov 25, 1980·29 cites·21 claims
- 0287US4344165AMethod and system for a disc player tracking servoUNIVERSAL PIONEER CORP·Filed 1980·Granted Aug 10, 1982·31 cites·6 claims
- 0386US5283659AApparatus and method of high vision signal recording using expansion techniques and digital drop-out compensationPIONEER ELECTRONIC CORP·Filed 1991·Granted Feb 1, 1994·41 cites·4 claims
- 0485US4338682ATracking servo system of video disc playerHOSAKA TOSHIHIKO·Filed 1980·Granted Jul 6, 1982·43 cites·8 claims
- 0575US6417643B1Synchronous control deviceKABUSHIKI KAISYA TOKYO KIKAI S·Filed 2001·Granted Jul 9, 2002·22 cites·10 claims
- 0674US4667338ANoise elimination circuit for eliminating noise signals from binary dataSANYO ELECTRIC CO·Filed 1985·Granted May 19, 1987·23 cites·3 claims
- 0774US4494154APickup control device and method for fast or slow reproduction in a disk reading systemUNIVERSAL PIONEER CORP·Filed 1981·Granted Jan 15, 1985·18 cites·2 claims
- 0869US6423205B1Electric deionization apparatusEBARA CORP·Filed 1999·Granted Jul 23, 2002·32 cites·16 claims
- 0968US6493305B1Pulse width control circuitSANYO ELECTRIC CO·Filed 1999·Granted Dec 10, 2002·23 cites·18 claims
- 1065US8808143B2Output control device for vehicleFUJI HEAVY IND LTD·Filed 2012·Granted Aug 19, 2014·2 cites·12 claims
- 1164US4447663AProcess for continuous fluorination of carbonDAIKIN IND LTD·Filed 1982·Granted May 8, 1984·13 cites·5 claims
- 1261US5420847AReproducing system for an optical discPIONEER ELECTRONIC CORP·Filed 1993·Granted May 30, 1995·13 cites·5 claims
- 1361US4853914ATime base correction system with coarse and fine correctionPIONEER ELECTRONIC CORP·Filed 1988·Granted Aug 1, 1989·16 cites·5 claims
- 1459US9612141B2Ultrasonic flow measurement systemWOOJIN INC·Filed 2014·Granted Apr 4, 2017·2 cites·4 claims
- 1559US5355938ATemperature control deviceTOSHIBA MACHINE CO LTD·Filed 1992·Granted Oct 18, 1994·26 cites·1 claims
- 1659US4837637AScanning method for disk playerPIONEER ELECTRONIC CORP·Filed 1987·Granted Jun 6, 1989·12 cites·6 claims
- 1757US6567490B1Pulse signal delay circuitSANYO ELECTRIC CO·Filed 1999·Granted May 20, 2003·14 cites·6 claims
- 1857US4348363AApparatus for solid gas reactionDAIKIN IND LTD·Filed 1980·Granted Sep 7, 1982·10 cites·6 claims
- 1956US4743979ASystem for playing video information recording disks, capable of special playback mode operation with a CLV diskPIONEER ELECTRONIC CORP·Filed 1986·Granted May 10, 1988·10 cites·2 claims
- 2055US4179628AFlip-flop having reset preferential functionSANYO ELECTRIC CO·Filed 1977·Granted Dec 18, 1979·7 cites·19 claims
- 2154US4512002ATracking servo system of recording disc information recording and reproducing apparatusUNIVERSAL PIONEER CORP·Filed 1983·Granted Apr 16, 1985·8 cites·9 claims
- 2250US4882625AImproved definition television set with external luminance and chrominance signal inputsPIONEER ELECTRONIC CORP·Filed 1988·Granted Nov 21, 1989·10 cites·3 claims
- 2349US4853781AVideo format signal processing systemPIONEER ELECTRONIC CORP·Filed 1988·Granted Aug 1, 1989·10 cites·12 claims
- 2447US4835623ASystem for playing video information recording disks, capable of special playback mode operation with a CLV diskPIONEER ELECTRONIC CORP·Filed 1987·Granted May 30, 1989·9 cites·1 claims
- 2546US5321519ACrosstalk detector for optically read signalsPIONEER ELECTRONIC CORP·Filed 1993·Granted Jun 14, 1994·5 cites·8 claims
- 2646US4841379ATime-base error correction apparatus for video tape or disk playerPIONEER ELECTRONIC CORP·Filed 1987·Granted Jun 20, 1989·8 cites·3 claims
- 2745US4201945APhase comparing apparatusSANYO ELECTRIC CO·Filed 1978·Granted May 6, 1980·8 cites·20 claims
- 2844US4734757AColor burst phase detection system for use in a video disk player systemPIONEER ELECTRONIC CORP·Filed 1986·Granted Mar 29, 1988·9 cites·10 claims
- 2942US2009249691A1Apparatus and Method for Gasifying Solid FuelHITACHI LTD·Filed 2006·Application pending·0 cites
- 3040US5204744ASystem for reproducing a stationary picturePIONEER ELECTRONIC CORP·Filed 1991·Granted Apr 20, 1993·4 cites·3 claims
- 3140US2004188258A1Electric demineralizerFiled 2003·Application pending·0 cites
- 3240US2004238350A1Electric demineralization apparatusFiled 2002·Application pending·0 cites
- 3337US2010007666A1Method and device for displaying information codeNOHARA MANABU·Filed 2007·Application pending·0 cites
- 3435US4477838ATangential error signal generator in PAL type video disc playerUNIVERSAL PIONEER CORP·Filed 1981·Granted Oct 16, 1984·2 cites·6 claims
- 3534US4928166AApparatus for suppressing noises in a video signalPIONEER ELECTRONIC CORP·Filed 1988·Granted May 22, 1990·3 cites·6 claims
- 3632US4866394APhase synchronizing circuit for a time axis shift correcting circuitPIONEER ELECTRONIC CORP·Filed 1988·Granted Sep 12, 1989·2 cites·14 claims
- 3732US4688103AApparatus for the color synchronization of reproduced video signalsPIONEER ELECTRONIC CORP·Filed 1985·Granted Aug 18, 1987·2 cites·7 claims
- 3832US4584614AChroma signal phase correction circuitry to be used in a color video information playback systemPIONEER ELECTRONIC CORP·Filed 1983·Granted Apr 22, 1986·2 cites·4 claims
- 3931US5481369ACrosstalk detector for optically read signalsPIONEER ELECTRONIC CORP·Filed 1994·Granted Jan 2, 1996·0 cites·6 claims
- 4030US5251042AComponent video signal transmitting apparatusPIONEER ELECTRONIC CORP·Filed 1992·Granted Oct 5, 1993·0 cites·1 claims
- 4130US5166805ADisk player with a blanking during fast scanningPIONEER ELECTRONIC CORP·Filed 1990·Granted Nov 24, 1992·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →