Inventor
KOIKE YOSHIHIKO
JP26 patents
⚠️ This page may combine multiple inventors who share the name “KOIKE YOSHIHIKO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
14 patentsUS6434008B1Aug 13, 2002
Semiconductor device
HITACHI LTD84 citations97
US5956231ASep 21, 1999
Semiconductor device having power semiconductor elements
HITACHI LTD85 citations96
US5801936ASep 1, 1998
Semiconductor module for a power conversion device
HITACHI LTD51 citations96
US5731970AMar 24, 1998
Power conversion device and semiconductor module suitable for use in the device
HITACHI LTD71 citations96
US5459655AOct 17, 1995
Neutral-point clamped inverter device using semiconductor modules
HITACHI LTD80 citations96
US5621243AApr 15, 1997
Semiconductor device having thermal stress resistance structure
HITACHI LTD80 citations95
US6909185B1Jun 21, 2005
Composite material including copper and cuprous oxide and application thereof
HITACHI LTD22 citations92
US6630734B2Oct 7, 2003
Composite material, and manufacturing method and uses of same
HITACHI LTD17 citations92
US6441317B1Aug 27, 2002
Semiconductor module and inverter device
HITACHI LTD21 citations90
US5585672ADec 17, 1996
Semiconductor module with an improved heat sink/insulation plate arrangement
HITACHI LTD23 citations90
US5446318AAug 29, 1995
Semiconductor module with a plurality of power devices mounted on a support base with an improved heat sink/insulation plate arrangement
HITACHI LTD29 citations90
US6833617B2Dec 21, 2004
Composite material including copper and cuprous oxide and application thereof
HITACHI LTD15 citations83
US6646344B1Nov 11, 2003
Composite material, and manufacturing method and uses of same
HITACHI LTD4 citations73
US6611056B2Aug 26, 2003
Composite material, and manufacturing method and uses of same
HITACHI LTD8 citations73
FUJITSU LTD
7 patentsUS6621328B2Sep 16, 2003
Semiconductor device
FUJITSU LTD7 citations74
US6321280B1Nov 20, 2001
System LSI having communication function
FUJITSU LTD7 citations74
US7454649B2Nov 18, 2008
Marginless status determination circuit
FUJITSU LTD2 citations63
US7135939B2Nov 14, 2006
Semiconductor device including an external oscillation circuit
FUJITSU LTD3 citations62
US7424383B2Sep 9, 2008
Abnormality detection device for detecting an abnormality in a communication bus
FUJITSU LTD3 citations59
US7174435B2Feb 6, 2007
Memory control circuit, memory device, and microcomputer
FUJITSU LTD1 citations49
US7091518B2Aug 15, 2006
Semiconductor device
FUJITSU LTD0 citations42