Inventor
IZUMISAWA MASARU
JP36 patents
⚠️ This page may combine multiple inventors who share the name “IZUMISAWA MASARU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
TOSHIBA KK
30 patentsUS6844592B2Jan 18, 2005
Semiconductor device with super junction region
TOSHIBA KK144 citations99
US6740931B2May 25, 2004
Semiconductor device
TOSHIBA KK95 citations98
US7224022B2May 29, 2007
Vertical type semiconductor device and method of manufacturing the same
TOSHIBA KK60 citations95
US6878989B2Apr 12, 2005
Power MOSFET semiconductor device and method of manufacturing the same
TOSHIBA KK59 citations95
US7115475B2Oct 3, 2006
Method of manufacturing semiconductor device
TOSHIBA KK37 citations93
US8013360B2Sep 6, 2011
Semiconductor device having a junction of P type pillar region and N type pillar region
TOSHIBA KK29 citations92
US7737469B2Jun 15, 2010
Semiconductor device having superjunction structure formed of p-type and n-type pillar regions
TOSHIBA KK36 citations92
US6972460B2Dec 6, 2005
Semiconductor device and manufacturing method thereof
TOSHIBA KK23 citations92
US6849900B2Feb 1, 2005
Semiconductor device
TOSHIBA KK37 citations92
US9041101B2May 26, 2015
Power semiconductor device
TOSHIBA KK8 citations84
US7989910B2Aug 2, 2011
Semiconductor device including a resurf region with forward tapered teeth
TOSHIBA KK11 citations84
US7919824B2Apr 5, 2011
Semiconductor device and method of manufacturing the same
TOSHIBA KK17 citations84
US7759732B2Jul 20, 2010
Power semiconductor device
TOSHIBA KK8 citations84
US7622771B2Nov 24, 2009
Semiconductor apparatus
TOSHIBA KK10 citations84
US7605426B2Oct 20, 2009
Power semiconductor device
TOSHIBA KK11 citations84
US7259426B2Aug 21, 2007
Semiconductor device and its manufacturing method
TOSHIBA KK13 citations84
US7253507B2Aug 7, 2007
Semiconductor device
TOSHIBA KK15 citations84
US7226841B2Jun 5, 2007
Power MOSFET semiconductor device and method of manufacturing the same
TOSHIBA KK15 citations83
US7301202B2Nov 27, 2007
Semiconductor device and method of manufacturing the same
TOSHIBA KK11 citations82
US7341900B2Mar 11, 2008
Semiconductor device and method for manufacturing the same
TOSHIBA KK2 citations63
US7034346B2Apr 25, 2006
Semiconductor device and method for manufacturing the same
TOSHIBA KK2 citations63
US9142627B2Sep 22, 2015
Semiconductor device
TOSHIBA KK3 citations62
US7462541B2Dec 9, 2008
Manufacturing method of semiconductor device
TOSHIBA KK2 citations62
US7262477B2Aug 28, 2007
Semiconductor device
TOSHIBA KK6 citations62
US7423315B2Sep 9, 2008
Semiconductor device and method for manufacturing the same
TOSHIBA KK3 citations60
US12506106B2Dec 23, 2025
Semiconductor device
TOSHIBA KK0 citations52
USRE47641EOct 8, 2019
Semiconductor device with super junction region
TOSHIBA KK0 citations52
US8030706B2Oct 4, 2011
Power semiconductor device
TOSHIBA KK1 citations52
US7994006B2Aug 9, 2011
Manufacturing method of semiconductor device
TOSHIBA KK0 citations52
US9312331B2Apr 12, 2016
Semiconductor device
TOSHIBA KK0 citations41