Inventor · disambiguated record
Kazuhiro Fujikawa
Also filed as: FUJIKAWA KAZUHIRO
28 granted patents·15 pending applications·100 citations·filing 1994–2016
95Inventor score
Files withSUMITOMO ELECTRIC INDUSTRIES23FUJIKAWA KAZUHIRO11HATSUKAWA SATOSHI1ITO SATOMI1KANAI SUETSUGU1
Top patents by PatentIndex Score
43 records- 0190US7750377B2Vertical junction field effect transistors, and methods of producing the vertical junction field effect transistorsSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Jul 6, 2010·15 cites·21 claims
- 0284US8623752B2Ohmic electrode for SiC semiconductor, method of manufacturing ohmic electrode for SiC semiconductor, semiconductor device, and method of manufacturing semiconductor deviceFUJIKAWA KAZUHIRO·Filed 2007·Granted Jan 7, 2014·11 cites·10 claims
- 0383US5495464AOptical data recording/reproducing apparatusOLYMPUS OPTICAL CO·Filed 1994·Granted Feb 27, 1996·36 cites·17 claims
- 0478US8760223B2Switching circuitFUJIKAWA KAZUHIRO·Filed 2012·Granted Jun 24, 2014·6 cites·11 claims
- 0578US8043949B2Method of manufacturing silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Oct 25, 2011·6 cites·3 claims
- 0670US8624303B2Field effect transistorFUJIKAWA KAZUHIRO·Filed 2010·Granted Jan 7, 2014·3 cites·9 claims
- 0766US8697555B2Method of producing semiconductor device and semiconductor deviceFUJIKAWA KAZUHIRO·Filed 2008·Granted Apr 15, 2014·2 cites·12 claims
- 0864US7759211B2Method of fabricating semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2008·Granted Jul 20, 2010·1 cites·25 claims
- 0961US7671388B2Lateral junction field effect transistor and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2009·Granted Mar 2, 2010·1 cites·7 claims
- 1060US7671387B2Lateral junction field effect transistor and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2008·Granted Mar 2, 2010·1 cites·8 claims
- 1160US7282760B2Vertical junction field effect transistors, and methods of producing the vertical junction field effect transistorsSUMITOMO ELECTRIC INDUSTRIES·Filed 2003·Granted Oct 16, 2007·6 cites·9 claims
- 1259US8557711B2Etching solution composition for metal filmsFUJIKAWA KAZUHIRO·Filed 2009·Granted Oct 15, 2013·1 cites·11 claims
- 1356US7364978B2Method of fabricating semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted Apr 29, 2008·4 cites·15 claims
- 1451US9685885B2Power conversion apparatus with an inverted-voltage generation circuitSUMITOMO ELECTRIC INDUSTRIES·Filed 2014·Granted Jun 20, 2017·0 cites·2 claims
- 1550US8917142B2Switching circuit and envelope signal amplifierSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted Dec 23, 2014·1 cites·9 claims
- 1650US8536930B2Switching circuitHATSUKAWA SATOSHI·Filed 2012·Granted Sep 17, 2013·1 cites·8 claims
- 1749US8643065B2Semiconductor device and method for manufacturing the sameFUJIKAWA KAZUHIRO·Filed 2009·Granted Feb 4, 2014·0 cites·5 claims
- 1849US7867882B2Method of manufacturing silicon carbide semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Granted Jan 11, 2011·0 cites·2 claims
- 1949US7420232B2Lateral junction field effect transistor and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2006·Granted Sep 2, 2008·0 cites·4 claims
- 2049US6877945B2ForkliftNIPPON YUSOKI CO LTD·Filed 2002·Granted Apr 12, 2005·1 cites·15 claims
- 2148US2010123172A1Semiconductor device and method of producing semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2008·Application pending·0 cites
- 2247US7049644B2Lateral junction field effect transistor and method of manufacturing the sameSUMITOMO ELECTRIC INDUSTRIES·Filed 2002·Granted May 23, 2006·2 cites·4 claims
- 2346US2010035420A1Method of manufacturing semiconductor deviceSUMITOMO ELECTRIC INDUSTRIES·Filed 2007·Application pending·0 cites
- 2445US2012037924A1Junction Field-Effect TransistorFUJIKAWA KAZUHIRO·Filed 2011·Application pending·0 cites
- 2544US10665881B2Redox flow battery system, pump control unit, and method for operating redox flow batterySUMITOMO ELECTRIC INDUSTRIES·Filed 2016·Granted May 26, 2020·0 cites·12 claims
- 2644US7321142B2Field effect transistorSUMITOMO ELECTRIC INDUSTRIES·Filed 2004·Granted Jan 22, 2008·2 cites·4 claims
- 2744US2009152566A1Junction field-effect transistorFUJIKAWA KAZUHIRO·Filed 2005·Application pending·0 cites
- 2843US9154052B2Power inverter circuit having switching elementsSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Granted Oct 6, 2015·0 cites·2 claims
- 2942US2009154210A1Bidirectional field-effect transistor and matrix converterSUMITOMO ELECTRIC INDUSTRIES·Filed 2005·Application pending·0 cites
- 3041US2013265684A1Switching circuitSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Application pending·0 cites
- 3141US2014049870A1Semiconductor moduleSUMITOMO ELECTRIC INDUSTRIES·Filed 2013·Application pending·0 cites
- 3240US2002037714A1Method and system of remotely controlling a portable terminal and a computer productFiled 2001·Application pending·0 cites
- 3338US2012138958A1Silicon carbide semiconductor deviceFUJIKAWA KAZUHIRO·Filed 2011·Application pending·0 cites
- 3437US9007738B2Transistor protection circuitSUMITOMO ELECTRIC INDUSTRIES·Filed 2012·Granted Apr 14, 2015·0 cites·7 claims
- 3537US2011127585A1Lateral junction field-effect transistorSUMITOMO ELECTRIC INDUSTRIES·Filed 2010·Application pending·0 cites
- 3637US2017012307A1Redox flow battery system and method for operating redox flow batterySUMITOMO ELECTRIC INDUSTRIES·Filed 2015·Application pending·0 cites
- 3737US2005136672A1Etching solution composition for metal filmsNIIGATA SANYO ELECTRONIC CO LT·Filed 2004·Application pending·0 cites
- 3836US2012199848A1Silicon carbide semiconductor device and method for manufacturing sameITO SATOMI·Filed 2012·Application pending·0 cites
- 3936US2012056203A1Semiconductor deviceFUJIKAWA KAZUHIRO·Filed 2010·Application pending·0 cites
- 4035US8878604B2Switching circuit and envelope signal amplifierOHIRA TAKASHI·Filed 2011·Granted Nov 4, 2014·0 cites·5 claims
- 4133US8766699B2Switching circuitFUJIKAWA KAZUHIRO·Filed 2012·Granted Jul 1, 2014·0 cites·2 claims
- 4230US2012231615A1Semiconductor thin-film manufacturing method, semiconductor thin-film manufacturing apparatus, susceptor, and susceptor holderSHIOMI HIROMU·Filed 2011·Application pending·0 cites
- 4329US9017856B2Stacked battery with electrode having break portionKANAI SUETSUGU·Filed 2011·Granted Apr 28, 2015·0 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Kazuhiro Fujikawa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →