Inventor
KITAGAWA MITSUHIKO
JP56 patents
⚠️ This page may combine multiple inventors who share the name “KITAGAWA MITSUHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
45 patentsUS5554862ASep 10, 1996
Power semiconductor device
TOSHIBA KK135 citations98
US5329142AJul 12, 1994
Self turn-off insulated-gate power semiconductor device with injection-enhanced transistor structure
TOSHIBA KK128 citations98
US5162876ANov 10, 1992
Semiconductor device having high breakdown voltage
TOSHIBA KK122 citations98
US6777746B2Aug 17, 2004
Field effect transistor and application device thereof
TOSHIBA KK55 citations96
US5838026ANov 17, 1998
Insulated-gate semiconductor device
TOSHIBA KK58 citations96
US5689121ANov 18, 1997
Insulated-gate semiconductor device
TOSHIBA KK61 citations96
US5585651ADec 17, 1996
Insulated-gate semiconductor device having high breakdown voltages
TOSHIBA KK56 citations96
US5464994ANov 7, 1995
Insulated-gate thyristor
TOSHIBA KK45 citations96
US5448083ASep 5, 1995
Insulated-gate semiconductor device
TOSHIBA KK75 citations96
US5381026AJan 10, 1995
Insulated-gate thyristor
TOSHIBA KK46 citations96
US5796125AAug 18, 1998
High breakdown voltage semiconductor device using trench grooves
TOSHIBA KK48 citations93
US7202526B2Apr 10, 2007
Field effect transistor and application device thereof
TOSHIBA KK17 citations92
US6236069B1May 22, 2001
Insulated-gate thyristor
TOSHIBA KK26 citations92
US5793065AAug 11, 1998
Insulated-gate thyristor
TOSHIBA KK29 citations92
US5510647AApr 23, 1996
Semiconductor device and method of manufacturing the same
TOSHIBA KK26 citations92
US5250446AOct 5, 1993
Method of manufacturing a semiconductor device by forming at least three regions of different lifetimes of carriers at different depths
TOSHIBA KK48 citations92
US5243205ASep 7, 1993
Semiconductor device with overvoltage protective function
TOSHIBA KK35 citations92
US4996586AFeb 26, 1991
Crimp-type semiconductor device having non-alloy structure
TOSHIBA KK27 citations92
US5223442AJun 29, 1993
Method of making a semiconductor device of a high withstand voltage
TOSHIBA KK21 citations91
US5006921AApr 9, 1991
Power semiconductor switching apparatus with heat sinks
TOSHIBA KK25 citations88
US9082810B2Jul 14, 2015
Semiconductor device
TOSHIBA KK8 citations84
US7030416B2Apr 18, 2006
Micro electro mechanical system apparatus
TOSHIBA KK11 citations84
US5298769AMar 29, 1994
GTO thyristor capable of preventing parasitic thyristors from being generated
TOSHIBA KK16 citations74
US10319844B2Jun 11, 2019
Semiconductor device
TOSHIBA KK2 citations73
US9530874B2Dec 27, 2016
Semiconductor device
TOSHIBA KK4 citations73
US5637909AJun 10, 1997
Semiconductor device and method of manufacturing the same
TOSHIBA KK5 citations73
US7064384B2Jun 20, 2006
Semiconductor device
TOSHIBA KK7 citations72
US5210601AMay 11, 1993
Compression contacted semiconductor device and method for making of the same
TOSHIBA KK17 citations72
US5156981AOct 20, 1992
Method of making a semiconductor device of a high withstand voltage
TOSHIBA KK17 citations72
US5376815ADec 27, 1994
Semiconductor device having bipolar-mos composite element pellet suitable for pressure contacted structure
TOSHIBA KK17 citations71
US6967357B1Nov 22, 2005
Voltage-driven power semiconductor device
TOSHIBA KK6 citations69
US6147368ANov 14, 2000
Voltage-driven power semiconductor device
TOSHIBA KK9 citations69
US9178028B2Nov 3, 2015
Semiconductor device
TOSHIBA KK3 citations63
US7498635B2Mar 3, 2009
Field effect transistor and application device thereof
TOSHIBA KK3 citations63
US7479679B2Jan 20, 2009
Field effect transistor and application device thereof
TOSHIBA KK1 citations63
US7439547B2Oct 21, 2008
Micro electro mechanical system apparatus
TOSHIBA KK3 citations63
US7385255B2Jun 10, 2008
Field effect transistor and application device thereof
TOSHIBA KK3 citations63
US7145169B2Dec 5, 2006
Field-effect transistor, semiconductor device, and photo relay
TOSHIBA KK4 citations58
US12520569B2Jan 6, 2026
Semiconductor device
TOSHIBA KK0 citations52
US10050135B2Aug 14, 2018
Semiconductor device and method for driving same
TOSHIBA KK0 citations52
US9768248B2Sep 19, 2017
Semiconductor device having diode characteristic
TOSHIBA KK0 citations52
US9741836B2Aug 22, 2017
Semiconductor device and method for driving same
TOSHIBA KK0 citations52
US9590030B2Mar 7, 2017
Semiconductor device having diode characteristic
TOSHIBA KK0 citations52
US9502402B2Nov 22, 2016
Semiconductor device
TOSHIBA KK0 citations52
US9276076B2Mar 1, 2016
Semiconductor device
TOSHIBA KK0 citations52
KITAGAWA MITSUHIKO
4 patentsUS8076749B2Dec 13, 2011
Semiconductor device
KITAGAWA MITSUHIKO25 citations92
US9024382B2May 5, 2015
Semiconductor device
KITAGAWA MITSUHIKO10 citations84
US8860171B2Oct 14, 2014
Semiconductor device having diode characteristic
KITAGAWA MITSUHIKO7 citations84
US8415711B2Apr 9, 2013
Semiconductor device and method for manufacturing the same
KITAGAWA MITSUHIKO10 citations84
OKI DATA KK
1 patentShowing the top 50 of 56 patents by PatentIndex Score.