Inventor · disambiguated record
Kozo Sakamoto
Also filed as: SAKAMOTO KOZO
19 granted patents·4 pending applications·623 citations·filing 1993–2009
96Inventor score
Top patents by PatentIndex Score
23 records- 0192US7557637B2Semiconductor circuitHITACHI LTD·Filed 2007·Granted Jul 7, 2009·23 cites·37 claims
- 0290US8508258B2Driver circuit for switching deviceISHIKAWA KATSUMI·Filed 2007·Granted Aug 13, 2013·22 cites·4 claims
- 0390US6700793B2Semiconductor deviceRENESAS TECH CORP·Filed 2002·Granted Mar 2, 2004·68 cites·9 claims
- 0490US6498368B2Power semiconductor deviceHITACHI LTD·Filed 2000·Granted Dec 24, 2002·56 cites·9 claims
- 0589US6323518B1Insulated gate type semiconductor device and method of manufacturing thereofHITACHI LTD·Filed 1999·Granted Nov 27, 2001·146 cites·23 claims
- 0689US5642252AInsulated gate semiconductor device and driving circuit device and electronic system both using the sameHITACHI LTD·Filed 1994·Granted Jun 24, 1997·107 cites·23 claims
- 0782US5629542ACompounded power MOSFETHITACHI LTD·Filed 1995·Granted May 13, 1997·65 cites·35 claims
- 0877US5903034ASemiconductor circuit device having an insulated gate type transistorHITACHI LTD·Filed 1996·Granted May 11, 1999·39 cites·44 claims
- 0974US7514780B2Power semiconductor deviceHITACHI LTD·Filed 2007·Granted Apr 7, 2009·5 cites·19 claims
- 1068US7671462B2Power semiconductor deviceHITACHI LTD·Filed 2009·Granted Mar 2, 2010·3 cites·4 claims
- 1164US7019362B2Power MOSFET with reduced dgate resistanceRENESAS TECH CORP·Filed 2004·Granted Mar 28, 2006·11 cites·13 claims
- 1263US5638246ASemiconductor device having a protection circuit, and electronic system including the sameHITACHI LTD·Filed 1993·Granted Jun 10, 1997·25 cites·41 claims
- 1362US6842346B2Semiconductor deviceRENESAS TECH CORP·Filed 2003·Granted Jan 11, 2005·10 cites·14 claims
- 1456US7952339B2Semiconductor circuitHITACHI LTD·Filed 2008·Granted May 31, 2011·4 cites·9 claims
- 1552US6385025B2Insulated gate type semiconductor apparatus with a control circuitHITACHI LTD·Filed 2001·Granted May 7, 2002·4 cites·6 claims
- 1652US6245455B1Sodium-sulfur secondary batteryHITACHI LTD·Filed 1998·Granted Jun 12, 2001·22 cites·21 claims
- 1752US6057998AInsulated gate type semiconductor apparatus with a control circuitHITACHI LTD·Filed 1997·Granted May 2, 2000·9 cites·63 claims
- 1845US7005834B2Synchronous rectifier circuit and power supplyRENESAS TECH CORP·Filed 2004·Granted Feb 28, 2006·2 cites·10 claims
- 1945US6201677B1Insulated gate type semiconductor apparatus with a control circuitHITACHI LTD·Filed 2000·Granted Mar 13, 2001·2 cites·16 claims
- 2041US2007221953A1Semiconductor deviceSAKAMOTO KOZO·Filed 2007·Application pending·0 cites
- 2134US2002167056A1Insulated gate semiconductor device with control circuitFiled 2002·Application pending·0 cites
- 2232US2002190285A1Power supply apparatus using power semiconductor switching elementFiled 2002·Application pending·0 cites
- 2332US2002179945A1Power semiconductor deviceFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →