Inventor · disambiguated record
Takuma Yanagisawa
Also filed as: YANAGISAWA TAKUMA
38 granted patents·17 pending applications·224 citations·filing 1993–2025
97Inventor score
Top patents by PatentIndex Score
55 records- 0190US6590857B2Optical diskPIONEER CORP·Filed 2001·Granted Jul 8, 2003·31 cites·2 claims
- 0288US7903048B2Information display apparatus and navigation apparatusPIONEER CORP·Filed 2005·Granted Mar 8, 2011·9 cites·16 claims
- 0380US8238220B2Pickup deviceSATO MAKOTO·Filed 2006·Granted Aug 7, 2012·4 cites·5 claims
- 0479US7907200B2Seamless image viewing system and methodPIONEER CORP·Filed 2005·Granted Mar 15, 2011·6 cites·8 claims
- 0579US6563773B1Tracking control apparatusPIONEER CORP·Filed 2000·Granted May 13, 2003·14 cites·8 claims
- 0677US12038304B2Optical devicePIONEER CORP·Filed 2023·Granted Jul 16, 2024·0 cites·5 claims
- 0776US11650051B2Optical devicePIONEER CORP·Filed 2018·Granted May 16, 2023·2 cites·4 claims
- 0875US7835250B2Optical pickup device and information recording/reproduction devicePIONEER CORP·Filed 2006·Granted Nov 16, 2010·3 cites·7 claims
- 0974US10812715B2Imaging apparatus and method of controlling imaging apparatusCANON KK·Filed 2018·Granted Oct 20, 2020·2 cites·13 claims
- 1074US6580676B1Recording information reproducing apparatus with crosstalk cancelerPIONEER ELECTRONIC CORP·Filed 1999·Granted Jun 17, 2003·25 cites·14 claims
- 1173US7206277B2Optical pickup device and focal error detecting device therefor and wave aberration and focal error detecting device thereforPIONEER CORP·Filed 2002·Granted Apr 17, 2007·9 cites·25 claims
- 1271US6970406B2Information playback apparatus, signal processing apparatus, and information playback method for detecting and canceling crosstalkSONY CORP·Filed 2002·Granted Nov 29, 2005·8 cites·26 claims
- 1369US7092341B2Data recording method and data recording mediumPIONEER CORP·Filed 2002·Granted Aug 15, 2006·7 cites·9 claims
- 1469US6865144B2Optical pickup apparatus and tilt amount detecting methodPIONEER CORP·Filed 2001·Granted Mar 8, 2005·7 cites·15 claims
- 1568US6124988AObjective lensPIONEER ELECTRONIC CORP·Filed 1998·Granted Sep 26, 2000·20 cites·17 claims
- 1666US7835237B2Optical pickup device and information recording/reproducing apparatusPIONEER CORP·Filed 2006·Granted Nov 16, 2010·1 cites·9 claims
- 1763US5850081AMethod for generating a focus error signal due to astigmatism and optical pickup device using the samePIONEER ELECTRONIC CORP·Filed 1997·Granted Dec 15, 1998·17 cites·6 claims
- 1863US5381391AOptical recording medium having a third non-linear optical reflection filmPIONEER ELECTRONIC CORP·Filed 1993·Granted Jan 10, 1995·14 cites·2 claims
- 1961US2011149711A1Coma aberration compensating device, coma aberration compensating method, and optical discPIONEER CORP·Filed 2008·Application pending·0 cites
- 2059US7151736B2Objective lens and optical pickup devicePIONEER CORP·Filed 2003·Granted Dec 19, 2006·3 cites·14 claims
- 2158US2025259358A1Image processing apparatus and method, and storage mediumCANON KK·Filed 2025·Application pending·0 cites
- 2256US6801491B1Focus error detecting apparatus of optical pickup with a light separating and astigmatism generation optical element and detection method thereofPIONEER CORP·Filed 2000·Granted Oct 5, 2004·3 cites·6 claims
- 2355US7190642B2Focus servo devicePIONEER CORP·Filed 2003·Granted Mar 13, 2007·2 cites·5 claims
- 2454US5546372AInformation detection light intensity control apparatus in optical disc recorded-information reproducing apparatusPIONEER ELECTRONIC CORP·Filed 1994·Granted Aug 13, 1996·9 cites·8 claims
- 2554US5365052AOptical information reading apparatus with controlled numerical aperture relationship between focusing and receiving optical systemsPIONEER ELECTRONIC CORP·Filed 1993·Granted Nov 15, 1994·9 cites·4 claims
- 2653US8004951B2Pickup devicePIONEER CORP·Filed 2007·Granted Aug 23, 2011·0 cites·10 claims
- 2751US11703571B2Optical devicePIONEER CORP·Filed 2018·Granted Jul 18, 2023·0 cites·7 claims
- 2850US7969836B2Optical pickup apparatusPIONEER CORP·Filed 2007·Granted Jun 28, 2011·0 cites·9 claims
- 2950US7190664B2High density optical recording medium and method for reproducing thereofPIONEER CORP·Filed 2001·Granted Mar 13, 2007·1 cites·6 claims
- 3049US2009278029A1Pickup devicePIONEER CORP·Filed 2006·Application pending·0 cites
- 3149US2011110208A1Coma aberration compensating device, coma aberration compensating method, and optical discPIONEER CORP·Filed 2011·Application pending·0 cites
- 3248US10122930B2Display control apparatus and control method thereofCANON KK·Filed 2017·Granted Nov 6, 2018·0 cites·20 claims
- 3348US7821899B2Optical pickup devicePIONEER CORP·Filed 2006·Granted Oct 26, 2010·0 cites·4 claims
- 3448US5615206AOptical diskPIONEER ELECTRONIC CORP·Filed 1995·Granted Mar 25, 1997·8 cites·5 claims
- 3548US2010220576A1Optical pickup device and information recording/reproduction devicePIONEER CORP·Filed 2006·Application pending·0 cites
- 3647US11202015B2Control apparatus and control methodCANON KK·Filed 2020·Granted Dec 14, 2021·0 cites·7 claims
- 3747US9891433B2Virtual image generation device and head-up displayPIONEER CORP·Filed 2013·Granted Feb 13, 2018·0 cites·15 claims
- 3847US2024353739A1Image processing apparatus, image processing method, and storage mediumCANON KK·Filed 2024·Application pending·0 cites
- 3947US2009073825A1Optical pick-up, aberration correcting method, optical pickup program, information recording device and method, information recording program, information reproducing device and method, information reproducing program, and information recording mediumPIONEER CORP·Filed 2006·Application pending·0 cites
- 4046US2002062191A1Information offering method and apparatus for vehiclePIONEER CORP·Filed 2001·Application pending·0 cites
- 4145US2024175988A1Sensor device, control device, control method, program, and storage mediumPIONEER CORP·Filed 2021·Application pending·0 cites
- 4245US2024168135A1Sensor device, control device, control method, program, and storage mediumPIONEER CORP·Filed 2021·Application pending·0 cites
- 4342US2014177017A1Image display devicePIONEER CORP·Filed 2011·Application pending·0 cites
- 4441US7142498B2Recorded information reproducing apparatusPIONEER CORP·Filed 2003·Granted Nov 28, 2006·0 cites·5 claims
- 4541US6333906B1Optical pickup and information reproducing apparatusPIONEER CORP·Filed 1999·Granted Dec 25, 2001·5 cites·20 claims
- 4641US5856959AMethod for generating a focus error signal due to astigmatism and optical pickup device using the samePIONEER ELECTRONIC CORP·Filed 1997·Granted Jan 5, 1999·5 cites·7 claims
- 4740US7200077B2Tilt angle detection device and method utilizing pattern identificationPIONEER CORP·Filed 2003·Granted Apr 3, 2007·0 cites·12 claims
- 4839US8475902B2Optical recording mediumMITSUMORI AYUMI·Filed 2008·Granted Jul 2, 2013·0 cites·9 claims
- 4939US2003031103A1Information reproduction apparatus and optical recording mediumPIONEER CORP·Filed 2002·Application pending·0 cites
- 5039US2020363509A1Optical devicePIONEER CORP·Filed 2018·Application pending·0 cites
Showing the top 50 of 55 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →