Inventor
FUJII YOSHIHISA
GB37 patents
⚠️ This page may combine multiple inventors who share the name “FUJII YOSHIHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHARP KK
21 patentsUS5170231ADec 8, 1992
Silicon carbide field-effect transistor with improved breakdown voltage and low leakage current
SHARP KK134 citations98
US5387804AFeb 7, 1995
Light emitting diode
SHARP KK98 citations96
US5243204ASep 7, 1993
Silicon carbide light emitting diode and a method for the same
SHARP KK76 citations96
US5184199AFeb 2, 1993
Silicon carbide semiconductor device
SHARP KK104 citations96
US5124779AJun 23, 1992
Silicon carbide semiconductor device with ohmic electrode consisting of alloy
SHARP KK53 citations96
US5329141AJul 12, 1994
Light emitting diode
SHARP KK24 citations92
US5313078AMay 17, 1994
Multi-layer silicon carbide light emitting diode having a PN junction
SHARP KK39 citations92
US5279701AJan 18, 1994
Method for the growth of silicon carbide single crystals
SHARP KK35 citations92
US5230768AJul 27, 1993
Method for the production of SiC single crystals by using a specific substrate crystal orientation
SHARP KK41 citations92
US5216264AJun 1, 1993
Silicon carbide MOS type field-effect transistor with at least one of the source and drain regions is formed by the use of a schottky contact
SHARP KK25 citations92
US5135885AAug 4, 1992
Method of manufacturing silicon carbide fets
SHARP KK38 citations92
US5063421ANov 5, 1991
Silicon carbide light emitting diode having a pn junction
SHARP KK34 citations92
US5030580AJul 9, 1991
Method for producing a silicon carbide semiconductor device
SHARP KK36 citations92
US5319220AJun 7, 1994
Silicon carbide semiconductor device
SHARP KK40 citations91
US5049950ASep 17, 1991
MIS structure photosensor
SHARP KK23 citations91
US4865659ASep 12, 1989
Heteroepitaxial growth of SiC on Si
SHARP KK23 citations82
US6771586B2Aug 3, 2004
Semiconductor laser element, method for manufacturing the same, and optical pickup using the same
SHARP KK12 citations74
US6618415B1Sep 9, 2003
Semiconductor laser device and fabricating method thereof
SHARP KK6 citations71
US6176968B1Jan 23, 2001
Method and apparatus for producing semiconductor laser device
SHARP KK2 citations63
US5872020AFeb 16, 1999
Method for producing semiconductor laser device
SHARP KK4 citations63
US6940884B2Sep 6, 2005
Semiconductor laser device and fabricating method thereof
SHARP KK4 citations60
SUMITOMO METAL IND
4 patentsUS4217548AAug 12, 1980
Flaw detector for pipe employing magnets located outside the pipe and detector mounted inside and movable along the pipe with the magnets
SUMITOMO METAL IND24 citations81
US3937448AFeb 10, 1976
Apparatus for hardening steel pipes
SUMITOMO METAL IND17 citations74
US4258318AMar 24, 1981
Flaw detector for pipe employing magnets located outside the pipe and detector mounted inside and movable along the pipe with the magnets
SUMITOMO METAL IND15 citations72
US4056412ANov 1, 1977
Method for hardening steel pipes
SUMITOMO METAL IND4 citations63
HITACHI AUTOMOTIVE SYSTEMS LTD
4 patentsUS10393051B2Aug 27, 2019
Internal-combustion-engine fuel injection control device
HITACHI AUTOMOTIVE SYSTEMS LTD2 citations73
US9422884B2Aug 23, 2016
Internal combustion engine control system with injector valve timing control
HITACHI AUTOMOTIVE SYSTEMS LTD2 citations63
US11542885B2Jan 3, 2023
Load drive circuit and load drive system
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations62
US10910815B2Feb 2, 2021
Electronic control unit
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations47