Inventor · disambiguated record
Toshihiro Shigemori
Also filed as: SHIGEMORI TOSHIHIRO
26 granted patents·1 pending application·456 citations·filing 1986–2013
97Inventor score
Top patents by PatentIndex Score
27 records- 0196US6345018B1Demodulation circuit for demodulating wobbling signalRICOH KK·Filed 2000·Granted Feb 5, 2002·74 cites·29 claims
- 0293US4942370APLL circuit with band width varying in accordance with the frequency of an input signalRICOH KK·Filed 1989·Granted Jul 17, 1990·52 cites·8 claims
- 0389US6693862B1Recording clock generating apparatus for a data recording systemRICOH KK·Filed 2000·Granted Feb 17, 2004·22 cites·14 claims
- 0483US6859425B2Wobble signal detection circuit and optical disk deviceRICOH KK·Filed 2002·Granted Feb 22, 2005·17 cites·24 claims
- 0581US6400673B1Optical disk driveRICOH KK·Filed 1998·Granted Jun 4, 2002·37 cites·5 claims
- 0681US5235576AOptical disc apparatusRICOH KK·Filed 1992·Granted Aug 10, 1993·31 cites·14 claims
- 0780US4817069ATracking control system of an optical pick-upRICOH KK·Filed 1986·Granted Mar 28, 1989·26 cites·17 claims
- 0877US5222057ATracking servo method used in an optical disk drive unitRICOH KK·Filed 1990·Granted Jun 22, 1993·25 cites·1 claims
- 0976US6125089ARecording timing control circuit for optical disk driving deviceRICOH KK·Filed 1998·Granted Sep 26, 2000·28 cites·5 claims
- 1073US5438601AReference clock frequency dividerRICOH KK·Filed 1994·Granted Aug 1, 1995·25 cites·9 claims
- 1171US4835754ATracking control device of an optical pick-upRICOH KK·Filed 1987·Granted May 30, 1989·17 cites·8 claims
- 1268US6061313AOptical disk drive having a time code detection device for reliably detecting a time code of a recordable optical diskRICOH KK·Filed 1998·Granted May 9, 2000·20 cites·10 claims
- 1367US5241521AOptical disk driving apparatusRICOH KK·Filed 1991·Granted Aug 31, 1993·17 cites·3 claims
- 1466US8908176B2Apparatus and method for obtaining spectral characteristicsKUBOTA YOICHI·Filed 2013·Granted Dec 9, 2014·2 cites·6 claims
- 1564USRE39513EDemodulation circuit for demodulating wobbling signalRICOH KK·Filed 2003·Granted Mar 13, 2007·4 cites·39 claims
- 1663US6980499B1Data recording clock signal generator for generating a recording clock signal for recording data on a recordable mediumRICOH KK·Filed 2000·Granted Dec 27, 2005·5 cites·6 claims
- 1760US5063552AOptical disk apparatus with data transfer rate and rotational speed variable by annular zonesRICOH KK·Filed 1989·Granted Nov 5, 1991·11 cites·16 claims
- 1858US7298216B2Fine clock resolution digital phase locked loop apparatusRICOH KK·Filed 2006·Granted Nov 20, 2007·3 cites·6 claims
- 1958US7075868B2Recording clock generating apparatus for a data recording systemRICOH KK·Filed 2003·Granted Jul 11, 2006·2 cites·7 claims
- 2057US2006203641A1Recording clock generating apparatus for a data recording systemSHIGEMORI TOSHIHIRO·Filed 2006·Application pending·0 cites
- 2156US5073776AData modulating systemRICOH KK·Filed 1990·Granted Dec 17, 1991·16 cites·9 claims
- 2251US7630286B2Digital PLL circuit and optical disk apparatus having digital PLL circuitRICOH KK·Filed 2007·Granted Dec 8, 2009·2 cites·20 claims
- 2348US5060214AOptical pickup device keeping coincident the optical axes of the objective lens and of the recording/reproducing beamRICOH KK·Filed 1989·Granted Oct 22, 1991·7 cites·6 claims
- 2445US5272686AServo signal generator for optical disk driving apparatusRICOH KK·Filed 1992·Granted Dec 21, 1993·6 cites·8 claims
- 2544US7652540B2Fine clock resolution digital phase locked loop apparatusRICOH KK·Filed 2007·Granted Jan 26, 2010·0 cites·5 claims
- 2635US4816722ADigital phase-locked loop filterRICOH KK·Filed 1987·Granted Mar 28, 1989·4 cites·8 claims
- 2733US4814679AMotor speed controlRICOH KK·Filed 1987·Granted Mar 21, 1989·3 cites·3 claims
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