Inventor
SAKAMOTO KOZO
JP19 patents
⚠️ This page may combine multiple inventors who share the name “SAKAMOTO KOZO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6498368B2Dec 24, 2002
Power semiconductor device
HITACHI LTD56 citations96
US6323518B1Nov 27, 2001
Insulated gate type semiconductor device and method of manufacturing thereof
HITACHI LTD146 citations95
US5642252AJun 24, 1997
Insulated gate semiconductor device and driving circuit device and electronic system both using the same
HITACHI LTD107 citations94
US7557637B2Jul 7, 2009
Semiconductor circuit
HITACHI LTD23 citations92
US5903034AMay 11, 1999
Semiconductor circuit device having an insulated gate type transistor
HITACHI LTD39 citations92
US5629542AMay 13, 1997
Compounded power MOSFET
HITACHI LTD65 citations92
US5638246AJun 10, 1997
Semiconductor device having a protection circuit, and electronic system including the same
HITACHI LTD25 citations91
US6245455B1Jun 12, 2001
Sodium-sulfur secondary battery
HITACHI LTD22 citations90
US6057998AMay 2, 2000
Insulated gate type semiconductor apparatus with a control circuit
HITACHI LTD9 citations74
US7671462B2Mar 2, 2010
Power semiconductor device
HITACHI LTD3 citations63
US7514780B2Apr 7, 2009
Power semiconductor device
HITACHI LTD5 citations63
US6385025B2May 7, 2002
Insulated gate type semiconductor apparatus with a control circuit
HITACHI LTD4 citations63
US6201677B1Mar 13, 2001
Insulated gate type semiconductor apparatus with a control circuit
HITACHI LTD2 citations63
US7952339B2May 31, 2011
Semiconductor circuit
HITACHI LTD4 citations62
RENESAS TECH CORP
4 patentsUS6700793B2Mar 2, 2004
Semiconductor device
RENESAS TECH CORP68 citations94
US7019362B2Mar 28, 2006
Power MOSFET with reduced dgate resistance
RENESAS TECH CORP11 citations84
US6842346B2Jan 11, 2005
Semiconductor device
RENESAS TECH CORP10 citations71
US7005834B2Feb 28, 2006
Synchronous rectifier circuit and power supply
RENESAS TECH CORP2 citations63