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 patentsUS5519245AMay 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 patentsUS5801445ASep 1, 1998
Semiconductor device and method of manufacturing same
DENSO CORP21 citations92
US6281546B1Aug 28, 2001
Insulated gate field effect transistor and manufacturing method of the same
DENSO CORP6 citations62
US6452219B1Sep 17, 2002
Insulated gate bipolar transistor and method of fabricating the same
DENSO CORP1 citations51