Inventor · disambiguated record
Hiroshi Maegawa
Also filed as: MAEGAWA HIROSHI
24 granted patents·4 pending applications·426 citations·filing 1994–2013
96Inventor score
Top patents by PatentIndex Score
28 records- 0196US6345018B1Demodulation circuit for demodulating wobbling signalRICOH KK·Filed 2000·Granted Feb 5, 2002·74 cites·29 claims
- 0290US5956313APhase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation methodRICOH KK·Filed 1997·Granted Sep 21, 1999·50 cites·10 claims
- 0388US5828634AOptical disk tracking method and device for producing a tracking error signal and a track crossing signalRICOH KK·Filed 1997·Granted Oct 27, 1998·55 cites·20 claims
- 0485US7426173B2Method and apparatus for definition of signal for record mediumRICOH KK·Filed 2005·Granted Sep 16, 2008·6 cites·7 claims
- 0584US7163952B2Azole compound and medicinal use thereofJAPAN TOBACCO INC·Filed 2002·Granted Jan 16, 2007·40 cites·54 claims
- 0683US6859425B2Wobble signal detection circuit and optical disk deviceRICOH KK·Filed 2002·Granted Feb 22, 2005·17 cites·24 claims
- 0783US5745463APhase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation methodRICOH KK·Filed 1997·Granted Apr 28, 1998·31 cites·6 claims
- 0883US5602823AOptical recording medium having pre-formatted patterns arrange by shifting phasesRICOH KK·Filed 1994·Granted Feb 11, 1997·33 cites·2 claims
- 0982US5648952APhase-change optical disc recording method and apparatus, and information recording apparatus and recording pre-compensation methodRICOH KK·Filed 1995·Granted Jul 15, 1997·30 cites·17 claims
- 1078US6888783B2Wobble detection circuit corresponding to a plurality of media having different pre-formats and optical disk apparatus having reduced sizeRICOH KK·Filed 2002·Granted May 3, 2005·11 cites·5 claims
- 1174US7633846B2Multi-level information reproducing method, multi-level information recording medium, multi-level information waveform equalizing device, multi-level information reproducing apparatus, multi-level information recording apparatus, signal processing method, reproduced signal processing circuit and optical disk apparatusRICOH KK·Filed 2005·Granted Dec 15, 2009·2 cites·5 claims
- 1273US6160773AOptical disk deviceRICOH KK·Filed 1998·Granted Dec 12, 2000·25 cites·16 claims
- 1373US5438601AReference clock frequency dividerRICOH KK·Filed 1994·Granted Aug 1, 1995·25 cites·9 claims
- 1472US7715285B2Information recording medium having a plurality of recording layersRICOH KK·Filed 2004·Granted May 11, 2010·8 cites·4 claims
- 1568US6741540B2Optical pickup device, information reproduction/recording apparatus, and information processing apparatusRICOH KK·Filed 2000·Granted May 25, 2004·5 cites·8 claims
- 1667US8530392B2Test agent for visceral obesity and use thereofKAWAMURA YOSHIHIRO·Filed 2010·Granted Sep 10, 2013·1 cites·2 claims
- 1767US7061845B2Write clock generating circuit and optical disk apparatusRICOH KK·Filed 2003·Granted Jun 13, 2006·5 cites·16 claims
- 1864USRE39513EDemodulation circuit for demodulating wobbling signalRICOH KK·Filed 2003·Granted Mar 13, 2007·4 cites·39 claims
- 1957US7260049B2Optical pickup device, information reproduction/recording apparatus, and information processing apparatusRICOH KK·Filed 2006·Granted Aug 21, 2007·0 cites·7 claims
- 2056US7046615B2Wobble detection circuit corresponding to a plurality of media having different pre-formats and optical disk apparatus having reduced sizeRICOH KK·Filed 2003·Granted May 16, 2006·2 cites·10 claims
- 2155US2006187784A1Write clock generation circuit and optical disk apparatusMAEGAWA HIROSHI·Filed 2006·Application pending·0 cites
- 2254US7474603B2Optical information recording method, apparatus, and medium, laser control circuit, wobble signal detection method, and servo signal detection methodRICOH KK·Filed 2003·Granted Jan 6, 2009·2 cites·1 claims
- 2351US2007032643A1Cis-element regulating transcription, transcriptional regulatory factor binding specifically thereto and use of the sameNISHIO YOSHIHIKO·Filed 2004·Application pending·0 cites
- 2450US7706242B2Optical disk, signal generation method, clock signal generation method, and optical disk deviceRICOH KK·Filed 2005·Granted Apr 27, 2010·0 cites·4 claims
- 2548US2013317202A1Test agent for visceral obesity and use thereofSHIONOGI & CO·Filed 2013·Application pending·0 cites
- 2647US7016273B2Optical pickup device, information reproduction/recording apparatus, and information processing apparatusRICOH KK·Filed 2004·Granted Mar 21, 2006·0 cites·2 claims
- 2744US7729229B2Recording medium, wobble cycle detection method, wobble information detection method, wobble information detection circuit, and information recording/reproduction deviceRICOH KK·Filed 2003·Granted Jun 1, 2010·0 cites·5 claims
- 2844US2009231252A1Display apparatus and display systemMAEGAWA HIROSHI·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →