Inventor · disambiguated record
Hitoshi Yoshikawa
Also filed as: YOSHIKAWA HITOSHI
30 granted patents·10 pending applications·351 citations·filing 1992–2016
96Inventor score
Files withTOKAI RUBBER IND LTD16SUMITOMO RIKO CO LTD9PANASONIC ECO SYS GUANGDONG CO3MATSUSHITA ELECTRIC INDUSTRIAL CO LTD2YANG DECONG2
Top patents by PatentIndex Score
40 records- 0194US5934783AVentilating fan/light combinationMATSUSHITA SEIKO KK·Filed 1997·Granted Aug 10, 1999·132 cites·25 claims
- 0291US9476608B2Ceiling mounted ventilation fan with illuminationYANG DECONG·Filed 2012·Granted Oct 25, 2016·15 cites·18 claims
- 0391US9253878B2Conductive composition and conductive filmTOKAI RUBBER IND LTD·Filed 2014·Granted Feb 2, 2016·10 cites·19 claims
- 0488US8814513B2Ceiling mounted ventilation fan with illuminationYANG DECONG·Filed 2011·Granted Aug 26, 2014·19 cites·20 claims
- 0586US8446075B2Conductive film, and transducer and flexible wiring board using the sameTAKAHASHI WATARU·Filed 2012·Granted May 21, 2013·5 cites·11 claims
- 0683US9136035B2Flexible conductive material and transducer, flexible wiring board, and electromagnetic shield using the sameITOU TAKAMASA·Filed 2012·Granted Sep 15, 2015·9 cites·14 claims
- 0780US7144525B2Elastic member of semiconductive polymer and OA equipment using the sameTOKAI RUBBER IND LTD·Filed 2002·Granted Dec 5, 2006·15 cites·7 claims
- 0879US8956113B2Ceiling mounted ventilation fan with illuminationPANASONIC ECO SYS GUANGDONG CO·Filed 2014·Granted Feb 17, 2015·5 cites·12 claims
- 0978USD561325SCentrifugal blower fanMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Feb 5, 2008·24 cites·1 claims
- 1077US10371409B2Ceiling mounted ventilation fan with illuminationPANASONIC ECO SYS GUANGDONG CO·Filed 2016·Granted Aug 6, 2019·2 cites·6 claims
- 1177US9051446B2Conductive crosslinked body and production process thereof, and transducer, flexible wiring board and electromagnetic wave shield using the conductive crosslinked bodyKOBAYASHI JUN·Filed 2011·Granted Jun 9, 2015·2 cites·9 claims
- 1275US6491613B2Roller for office automation equipmentTOKAI RUBBER IND LTD·Filed 2001·Granted Dec 10, 2002·15 cites·6 claims
- 1370US9504151B2Conductive composition and conductive filmTOKAI RUBBER IND LTD·Filed 2014·Granted Nov 22, 2016·2 cites·10 claims
- 1470US8958581B2Polymer speakerSUMITOMO RIKO CO LTD·Filed 2013·Granted Feb 17, 2015·1 cites·6 claims
- 1569US8240997B2Centrifugal impeller and centrifugal blower using the centrifugal impellerSHIRAHAMA SEIJI·Filed 2007·Granted Aug 14, 2012·5 cites·23 claims
- 1669US6734274B2Urethane composition for sheet transport roll, and sheet transport roll produced by employing the urethane compositionTOKAI RUBBER IND LTD·Filed 2001·Granted May 11, 2004·9 cites·17 claims
- 1765US10035897B2Dielectric film, process for producing same, and transducer using sameSUMITOMO RIKO CO LTD·Filed 2016·Granted Jul 31, 2018·1 cites·17 claims
- 1865USD561324SCentrifugal blower fanMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2007·Granted Feb 5, 2008·14 cites·1 claims
- 1963US7237319B2Method of manufacturing a plane coilSHINKO ELECTRIC IND CO·Filed 2004·Granted Jul 3, 2007·15 cites·6 claims
- 2059US9212263B2Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using sameTOKAI RUBBER IND LTD·Filed 2014·Granted Dec 15, 2015·0 cites·3 claims
- 2157US6142922AConductive rollerTOKAI RUBBER IND LTD·Filed 1998·Granted Nov 7, 2000·19 cites·18 claims
- 2255US9550865B2Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using sameSUMITOMO RIKO CO LTD·Filed 2015·Granted Jan 24, 2017·0 cites·6 claims
- 2352US2014004364A1Dielectric film and transducer including the sameTOKAI RUBBER IND LTD·Filed 2013·Application pending·0 cites
- 2452US2014090884A1Elastic conductive materialTOKAI RUBBER IND LTD·Filed 2013·Application pending·0 cites
- 2551US9954162B2Reactive ionic liquid, and ion-immobilized metal oxide particle, ion-immobilized elastomer, and transducer using sameSUMITOMO RIKO CO LTD·Filed 2014·Granted Apr 24, 2018·0 cites·10 claims
- 2651US9841181B2Ceiling mounted ventilation fan with illuminationPANASONIC ECO SYS GUANGDONG CO·Filed 2015·Granted Dec 12, 2017·0 cites·19 claims
- 2750US7309456B2Electrically conductive polymer, semiconductive composition using the same and semiconductive member for electrophotographic equipmentTOKAI RUBBER IND LTD·Filed 2004·Granted Dec 18, 2007·3 cites·7 claims
- 2849US9903738B2Conductive material, method for producing the conductive material, and transducer including the conductive materialSUMITOMO RIKO CO LTD·Filed 2015·Granted Feb 27, 2018·0 cites·11 claims
- 2949US5993366ALow hardness conductive rollTOKAI RUBBER IND LTD·Filed 1998·Granted Nov 30, 1999·14 cites·21 claims
- 3049US2013056249A1Flexible conductive material, method of manufacturing the same, and electrode, wiring, electromagnetic wave shield and transducer using the flexible conductive materialTOKAI RUBBER IND LTD·Filed 2012·Application pending·0 cites
- 3148US6146320AConductive rollTOKAI RUBBER IND LTD·Filed 1999·Granted Nov 14, 2000·11 cites·10 claims
- 3248US2006131546A1Elastic member of semiconductive polymer and OA equipment using the sameTOKAI RUBBER IND LTD·Filed 2006·Application pending·0 cites
- 3347US6783701B2Electrically conductive foam componentTOKAI RUBBER IND LTD·Filed 2002·Granted Aug 31, 2004·0 cites·10 claims
- 3442US2015206465A1Flexible expression display deviceSUMITOMO RIKO CO LTD·Filed 2015·Application pending·0 cites
- 3541US2008238258A1ActuatorTOKAI RUBBER IND LTD·Filed 2008·Application pending·0 cites
- 3641US2011300393A1Dielectric film, process for producing same, and transducer using sameIIO SHINJI·Filed 2010·Application pending·0 cites
- 3737US2015200039A1Conductive material and transducer including the conductive materialSUMITOMO RIKO CO LTD·Filed 2015·Application pending·0 cites
- 3836US2016111626A1Flexible conductive material and transducerSUMITOMO RIKO CO LTD·Filed 2015·Application pending·0 cites
- 3934US2015202656A1Flexible transducerSUMITOMO RIKO CO LTD·Filed 2015·Application pending·0 cites
- 4032US5299955ABattery terminal mounting means for a portable electrical deviceMITSUBISHI ELECTRIC CORP·Filed 1992·Granted Apr 5, 1994·4 cites·7 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →