Inventor · disambiguated record
Tsutomu Kai
Also filed as: KAI TSUTOMU
20 granted patents·2 pending applications·639 citations·filing 1991–2017
96Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD12FUJITSU DISPLAY TECH4FUJITSU LTD3MATSUSHITA ELECTRIC INDUSTIAL1MORITA KATSUMI1
Top patents by PatentIndex Score
22 records- 0194US6434096B1Optical information recording/reproducing deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Aug 13, 2002·71 cites·34 claims
- 0288US6853364B2Liquid crystal display deviceFUJITSU DISPLAY TECH·Filed 2001·Granted Feb 8, 2005·37 cites·40 claims
- 0388US6249495B1Stepping motor control method and disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 19, 2001·40 cites·12 claims
- 0486US7085200B2Stepping motor controlling method and disk apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 1, 2006·15 cites·2 claims
- 0586US5940064ADisplay-integrated coordinate input deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Aug 17, 1999·90 cites·26 claims
- 0686US5606346ACoordinate input deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Feb 25, 1997·145 cites·2 claims
- 0782US7106668B2Disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 12, 2006·11 cites·1 claims
- 0882US6654321B2Stepping motor control method and disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 25, 2003·12 cites·4 claims
- 0981US6925041B2Information recording apparatus using a mark edge recordingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 2, 2005·19 cites·11 claims
- 1077US9959901B1Inspection method for optical discPANASONIC IP MAN CO LTD·Filed 2017·Granted May 1, 2018·4 cites·1 claims
- 1176US6115020ALiquid crystal display device and display method of the sameFUJITSU LTD·Filed 1996·Granted Sep 5, 2000·51 cites·29 claims
- 1273US6181317B1Display and method of and drive circuit for driving the displayFUJITSU LTD·Filed 1996·Granted Jan 30, 2001·40 cites·22 claims
- 1372US6873378B2Liquid crystal display panelFUJITSU DISPLAY TECH·Filed 2002·Granted Mar 29, 2005·13 cites·6 claims
- 1467US6992959B1Optical disk, method of reproducing and copying optical disk, and method of preventing illegal use of optical diskMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Jan 31, 2006·19 cites·49 claims
- 1567US5502575AImaging apparatus having a counterfeiting prevention functionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Mar 26, 1996·28 cites·14 claims
- 1661US6950377B2Information recording method and information recording apparatusMATSUSHITA ELECTRIC INDUSTIAL·Filed 2002·Granted Sep 27, 2005·5 cites·16 claims
- 1758US5285295ALine image sensorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Feb 8, 1994·17 cites·5 claims
- 1855US6323847B1Correction of view-angle-dependent characteristics for display deviceFUJITSU LTD·Filed 1998·Granted Nov 27, 2001·20 cites·22 claims
- 1945US2003198150A1Disk drive apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Application pending·0 cites
- 2042US2007047926A1Signal processing device for optical discsMORITA KATSUMI·Filed 2006·Application pending·0 cites
- 2140US6989811B2Liquid crystal display device and driving circuit thereofFUJITSU DISPLAY TECH·Filed 2002·Granted Jan 24, 2006·0 cites·10 claims
- 2229US6753841B2Method and apparatus for driving liquid crystal display panelFUJITSU DISPLAY TECH·Filed 1999·Granted Jun 22, 2004·2 cites·13 claims
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