Inventor · disambiguated record
Keisuke Imai
Also filed as: IMAI KEISUKE · IMAI LEGAL REPRESENTATIVE SHIH
39 granted patents·7 pending applications·521 citations·filing 1991–2018
97Inventor score
Top patents by PatentIndex Score
46 records- 0186US7400141B2Magnetic type angle sensorFANUC LTD·Filed 2007·Granted Jul 15, 2008·16 cites·1 claims
- 0282US6546659B1Steering wheel mark member fixing structureTORAI RIKA DENKI SEISAKUSHO AI·Filed 2000·Granted Apr 15, 2003·25 cites·13 claims
- 0381US10444041B2Encoder having function of adjusting threshold value of comparator and method for controlling encoderFANUC CORP·Filed 2018·Granted Oct 15, 2019·2 cites·8 claims
- 0480US5706117ADrive circuit for electro-absorption optical modulator and optical transmitter including the optical modulatorFUJITSU LTD·Filed 1995·Granted Jan 6, 1998·52 cites·13 claims
- 0579US5680246AOptical amplifier and optical transmission apparatusFUJITSU LTD·Filed 1995·Granted Oct 21, 1997·64 cites·18 claims
- 0677US7185915B2Steering wheel incorporating air bag deviceMATSUO IND INC·Filed 2004·Granted Mar 6, 2007·28 cites·16 claims
- 0777US6624365B2Structure for mounting switch on vehicular steering wheelTOKAI RIKA CO LTD·Filed 2001·Granted Sep 23, 2003·27 cites·5 claims
- 0876US10404134B2MotorFANUC CORP·Filed 2017·Granted Sep 3, 2019·1 cites·4 claims
- 0976US6639160B2Steering switch assembly structureTOKAI RIKA CO LTD·Filed 2001·Granted Oct 28, 2003·19 cites·22 claims
- 1075US7133610B1Optical sender, terminal device, and optical communication system each having the optical senderFUJITSU LTD·Filed 1998·Granted Nov 7, 2006·54 cites·42 claims
- 1174US6318662B1Webbing winding deviceTOKAI RIKA CO LTD·Filed 1999·Granted Nov 20, 2001·41 cites·22 claims
- 1271US10360784B2Encoder system having function of detecting abnormality, and method for detecting abnormality of the sameFANUC CORP·Filed 2018·Granted Jul 23, 2019·1 cites·13 claims
- 1368US7196489B2Rotary shaft control apparatusFANUC LTD·Filed 2005·Granted Mar 27, 2007·4 cites·3 claims
- 1468US5588608APretensionerTOKAI RIKA CO LTD·Filed 1994·Granted Dec 31, 1996·33 cites·15 claims
- 1566US6343522B1Gear mechanism and webbing retractorTOKAI RIKA CO LTD·Filed 1999·Granted Feb 5, 2002·29 cites·14 claims
- 1664US6927388B2Optical encoderFANUC LTD·Filed 2004·Granted Aug 9, 2005·11 cites·4 claims
- 1760US7257332B2Optical transmitter and its control methodFUJITSU LTD·Filed 2003·Granted Aug 14, 2007·7 cites·12 claims
- 1859US7012397B2Encoder and control apparatus for motorFANUC LTD·Filed 2005·Granted Mar 14, 2006·4 cites·16 claims
- 1958US5973812AOptical transmitter and optical communication systemFUJITSU LTD·Filed 1997·Granted Oct 26, 1999·26 cites·17 claims
- 2057US10260912B2Encoder that detects infiltration of liquid by lightFANUC CORP·Filed 2017·Granted Apr 16, 2019·0 cites·2 claims
- 2155US7136740B2Machine tool control apparatusFANUC LTD·Filed 2005·Granted Nov 14, 2006·1 cites·4 claims
- 2255US6014392ADrive circuit for electro-absorption modulator and optical transmitter employing the sameFUJITSU LTD·Filed 1998·Granted Jan 11, 2000·21 cites·8 claims
- 2352US10066971B2Rotation angle detection apparatus having function of detecting entry of foreign substance based on frequency characteristic of signalsFANUC CORP·Filed 2016·Granted Sep 4, 2018·0 cites·1 claims
- 2451US10317258B2Rotary encoder having function to obtain moisture absorbing amount of desiccantFANUC CORP·Filed 2016·Granted Jun 11, 2019·0 cites·6 claims
- 2551US9863792B2Encoder having liquid-tight structureFANUC CORP·Filed 2016·Granted Jan 9, 2018·0 cites·4 claims
- 2650US6898859B2Rotary disc for encoderFANUC LTD·Filed 2003·Granted May 31, 2005·4 cites·12 claims
- 2750US6508143B2Structure for mounting to steering wheelTOKAI RIKA CO LTD·Filed 2000·Granted Jan 21, 2003·7 cites·22 claims
- 2847US6470746B1Acceleration sensorKABUSHIKI KAISH TOKAI RIKA DEN·Filed 1999·Granted Oct 29, 2002·14 cites·19 claims
- 2946US10527467B2Rotation angle detector which can detect entry of foreign substancesFANUC CORP·Filed 2016·Granted Jan 7, 2020·0 cites·3 claims
- 3043US10451444B2Encoder having function of adjusting threshold value of comparator and method for controlling encoderFANUC CORP·Filed 2018·Granted Oct 22, 2019·0 cites·6 claims
- 3143US7374090B2Optical encoder with resinous code plateFANUC LTD·Filed 2004·Granted May 20, 2008·0 cites·12 claims
- 3242US5577683AWebbing take-up apparatusTOKAI RIKA CO LTD·Filed 1995·Granted Nov 26, 1996·12 cites·20 claims
- 3341US6770991B2Roll connector structure for a vehicleTOKAI RIKA CO LTD·Filed 2001·Granted Aug 3, 2004·0 cites·7 claims
- 3441US2005285592A1Magnetic type angle sensorFANUC LTD·Filed 2005·Application pending·0 cites
- 3540US2006144182A1Rotary shaft control apparatusFANUC LTD·Filed 2005·Application pending·0 cites
- 3639US2008087806A1Optical encoderFANUC LTD·Filed 2007·Application pending·0 cites
- 3739US2004157666A1Coupling for motorFANUC LTD·Filed 2004·Application pending·0 cites
- 3837US2008020634A1Seal structure for electric circuit unitFANUC LTD·Filed 2007·Application pending·0 cites
- 3936US5301894AWebbing retractorTOKAI RIKA CO LTD·Filed 1992·Granted Apr 12, 1994·8 cites·19 claims
- 4035US2005087683A1Rotary encoderFANUC LTC·Filed 2004·Application pending·0 cites
- 4135US2004164732A1Rotary encoderFANUC LTD·Filed 2004·Application pending·0 cites
- 4232US5337970APreloader for a webbing retractorTOKAI RIKA CO LTD·Filed 1991·Granted Aug 16, 1994·4 cites·12 claims
- 4330US5174521APreloaderTOKAI RIKA CO LTD·Filed 1991·Granted Dec 29, 1992·1 cites·30 claims
- 4429US5564746APreloader for webbing retractorTOKAI RIKA CO LTD·Filed 1993·Granted Oct 15, 1996·0 cites·14 claims
- 4528US5462340APreloader for a webbing retractorTOKAI RIKA CO LTD·Filed 1993·Granted Oct 31, 1995·5 cites·20 claims
- 4627US5480104ADeactivating device for locking mechanism of pretensionerTOKAI RIKA CO LTD·Filed 1994·Granted Jan 2, 1996·0 cites·23 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →