Inventor
OHYANAGI TAKASUMI
JP13 patents
⚠️ This page may combine multiple inventors who share the name “OHYANAGI TAKASUMI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
10 patentsUS7307313B2Dec 11, 2007
Semiconductor device including a vertical field effect transistor, having trenches, and a diode
HITACHI LTD334 citations99
US6498368B2Dec 24, 2002
Power semiconductor device
HITACHI LTD56 citations96
US7067878B2Jun 27, 2006
Field effect transistor
HITACHI LTD13 citations84
US6657257B2Dec 2, 2003
Insulated gate field effect transistor and semiconductor integrated circuit
HITACHI LTD15 citations84
US6570240B1May 27, 2003
Semiconductor device having a lateral bipolar transistor and method of manufacturing same
HITACHI LTD13 citations84
US7663181B2Feb 16, 2010
Semiconductor device
HITACHI LTD4 citations63
US7335928B2Feb 26, 2008
Semiconductor device having a metal conductor in ohmic contact with the gate region on the bottom of each the first groove
HITACHI LTD3 citations62
US6885067B2Apr 26, 2005
SOI semiconductor device
HITACHI LTD2 citations62
US6750513B2Jun 15, 2004
Semiconductor device for driving plasma display panel
HITACHI LTD3 citations62
US6909155B2Jun 21, 2005
Semiconductor on insulator device
HITACHI LTD0 citations52
DENSO CORP
3 patentsUS7763504B2Jul 27, 2010
Method for manufacturing silicon carbide semiconductor device
DENSO CORP8 citations84
US7355207B2Apr 8, 2008
Silicon carbide semiconductor device and method for manufacturing the same
DENSO CORP5 citations63
US7230283B2Jun 12, 2007
Semiconductor device having a metal conductor in ohmic contact with the gate region on the bottom of each groove
DENSO CORP5 citations62