P

Inventor

OKABE NAOTO

JP20 patents
⚠️ This page may combine multiple inventors who share the name “OKABE NAOTO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NIPPON DENSO CO

17 patents
US5519245AMay 21, 1996

Insulated gate bipolar transistor with reverse conducting current

NIPPON DENSO CO128 citations97
US5723882AMar 3, 1998

Insulated gate field effect transistor having guard ring regions

NIPPON DENSO CO60 citations95
US5510634AApr 23, 1996

Insulated gate bipolar transistor

NIPPON DENSO CO60 citations95
US6107661AAug 22, 2000

Semiconductor device and method of manufacturing same

NIPPON DENSO CO41 citations92
US5464992ANov 7, 1995

Insulated gate bipolar transistor provided with a minority carrier extracting layer

NIPPON DENSO CO22 citations92
US5169793ADec 8, 1992

Method of making an insulated gate bipolar transistor having gate shield region

NIPPON DENSO CO33 citations92
US5475258ADec 12, 1995

Power semiconductor device with protective element

NIPPON DENSO CO24 citations88
US5545908AAug 13, 1996

Vertical type insulated-gate semiconductor device

NIPPON DENSO CO53 citations87
US4653443AMar 31, 1987

Thermoelectric generating composite functioning apparatus

NIPPON DENSO CO21 citations81
US6146947ANov 14, 2000

Insulated gate type field effect transistor and method of manufacturing the same

NIPPON DENSO CO6 citations74
US6100140AAug 8, 2000

Manufacturing method of semiconductor device

NIPPON DENSO CO9 citations74
US5925911AJul 20, 1999

Semiconductor device in which defects due to LOCOS or heat treatment are suppressed

NIPPON DENSO CO10 citations74
US5753943AMay 19, 1998

Insulated gate type field effect transistor and method of manufacturing the same

NIPPON DENSO CO7 citations74
US5448092ASep 5, 1995

Insulated gate bipolar transistor with current detection function

NIPPON DENSO CO9 citations74
US4985743AJan 15, 1991

Insulated gate bipolar transistor

NIPPON DENSO CO17 citations74
US5973338AOct 26, 1999

Insulated gate type bipolar-transistor

NIPPON DENSO CO12 citations73
US5719412AFeb 17, 1998

Insulated gate bipolar transistor

NIPPON DENSO CO2 citations62

DENSO CORP

3 patents