Inventor
KAMEI TATSUYA
31 patents
⚠️ This page may combine multiple inventors who share the name “KAMEI TATSUYA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
22 patentsUS4921811AMay 1, 1990
Semiconductor integrated circuit device and a method for manufacturing the same
HITACHI LTD33 citations95
US4122479AOct 24, 1978
Optoelectronic device having control circuit for light emitting element and circuit for light receiving element integrated in a semiconductor body
HITACHI LTD47 citations92
US4058821ANov 15, 1977
Photo-coupler semiconductor device and method of manufacturing the same
HITACHI LTD36 citations92
US4016593AApr 5, 1977
Bidirectional photothyristor device
HITACHI LTD28 citations82
US5508549AApr 16, 1996
Semiconductor integrated circuit device and a method for manufacturing the same
HITACHI LTD18 citations81
US4980744ADec 25, 1990
Semiconductor integrated circuit device and a method for manufacturing the same
HITACHI LTD20 citations81
US4212024AJul 8, 1980
Solid-state switching circuit employing photon coupling suitable for construction in form of integrated circuit
HITACHI LTD7 citations74
US4136351AJan 23, 1979
Photo-coupled semiconductor device
HITACHI LTD14 citations74
US4084110AApr 11, 1978
Semiconductor switch
HITACHI LTD9 citations74
US3994011ANov 23, 1976
High withstand voltage-semiconductor device with shallow grooves between semiconductor region and field limiting rings
HITACHI LTD10 citations74
US3967308AJun 29, 1976
Semiconductor controlled rectifier
HITACHI LTD9 citations74
US3943547AMar 9, 1976
Semiconductor device
HITACHI LTD19 citations74
US5672897ASep 30, 1997
Bimos semiconductor integrated circuit device including high speed vertical bipolar transistors
HITACHI LTD7 citations73
US5049967ASep 17, 1991
Semiconductor integrated circuit device and a method for manufacturing the same
HITACHI LTD7 citations73
US4578693AMar 25, 1986
Semiconductive photodetector device
HITACHI LTD12 citations73
US4419685ADec 6, 1983
Semiconductor device
HITACHI LTD13 citations73
US4063115ADec 13, 1977
Semiconductor switch
HITACHI LTD11 citations73
US3947864AMar 30, 1976
Diode-integrated thyristor
HITACHI LTD19 citations71
US4258377AMar 24, 1981
Lateral field controlled thyristor
HITACHI LTD4 citations63
US3943550AMar 9, 1976
Light-activated semiconductor-controlled rectifier
HITACHI LTD2 citations63
US4107731AAug 15, 1978
Silicon doped with cadmium to reduce lifetime
HITACHI LTD3 citations62
US3958268AMay 18, 1976
Thyristor highly proof against time rate of change of voltage
HITACHI LTD6 citations61
RENESAS ELECTRONICS CORP
3 patentsUS10540182B2Jan 21, 2020
Processor and instruction code generation device
RENESAS ELECTRONICS CORP0 citations51
US9946546B2Apr 17, 2018
Processor and instruction code generation device
RENESAS ELECTRONICS CORP1 citations51
US10915393B2Feb 9, 2021
Semiconductor device and failure detection system
RENESAS ELECTRONICS CORP0 citations49