Inventor
SAITO RYUICHI
JP115 patents
⚠️ This page may combine multiple inventors who share the name “SAITO RYUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
44 patentsUS6661659B2Dec 9, 2003
Water cooled inverter
HITACHI LTD121 citations99
US4772927ASep 20, 1988
Thin film FET doped with diffusion inhibitor
HITACHI LTD171 citations99
US7978471B2Jul 12, 2011
Electric power conversion apparatus
HITACHI LTD68 citations98
US7969735B2Jun 28, 2011
Power converter
HITACHI LTD48 citations98
US6621701B2Sep 16, 2003
Water cooled inverter
HITACHI LTD104 citations98
US6594149B2Jul 15, 2003
Liquid cooled circuit device
HITACHI LTD99 citations98
US6588647B2Jul 8, 2003
Liquid cooled circuit device and a manufacturing method thereof
HITACHI LTD80 citations98
US6434008B1Aug 13, 2002
Semiconductor device
HITACHI LTD84 citations97
US7090044B2Aug 15, 2006
Electrical apparatus, cooling system therefor, and electric vehicle
HITACHI LTD35 citations96
US6978856B2Dec 27, 2005
Electrical apparatus, cooling system therefor, and electric vehicle
HITACHI LTD48 citations96
US6331845B1Dec 18, 2001
Liquid crystal display device and driving method therefor
HITACHI LTD54 citations96
US6064358AMay 16, 2000
Liquid crystal display device and driving method therefor
HITACHI LTD63 citations96
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
US5629888AMay 13, 1997
Semiconductor memory device and method of operation thereof
HITACHI LTD42 citations96
US5561440AOct 1, 1996
Liquid crystal display device and driving method therefor
HITACHI LTD85 citations96
US5459655AOct 17, 1995
Neutral-point clamped inverter device using semiconductor modules
HITACHI LTD80 citations96
US5307304AApr 26, 1994
Semiconductor memory device and method of operation thereof
HITACHI LTD83 citations96
US4862240AAug 29, 1989
Complementary semiconductor device
HITACHI LTD62 citations96
US6353258B1Mar 5, 2002
Semiconductor module
HITACHI LTD65 citations95
US5621243AApr 15, 1997
Semiconductor device having thermal stress resistance structure
HITACHI LTD80 citations95
US7830689B2Nov 9, 2010
Power converter
HITACHI LTD50 citations94
US9137932B2Sep 15, 2015
Electric power conversion apparatus
HITACHI LTD12 citations93
US9042101B2May 26, 2015
Electric power conversion apparatus
HITACHI LTD16 citations93
US8917509B2Dec 23, 2014
Electric power conversion apparatus
HITACHI LTD11 citations93
US7812443B2Oct 12, 2010
Power semiconductor module for inverter circuit system
HITACHI LTD26 citations93
US7692923B2Apr 6, 2010
Power converter
HITACHI LTD25 citations93
US7978468B2Jul 12, 2011
Power converter
HITACHI LTD20 citations92
US7660122B2Feb 9, 2010
Electrical apparatus, cooling system therefor, and electric vehicle
HITACHI LTD12 citations92
US7638904B2Dec 29, 2009
Isolated bidirectional DC-DC converter
HITACHI LTD40 citations92
US7252167B2Aug 7, 2007
Electrical apparatus, cooling system therefor, and electric vehicle
HITACHI LTD11 citations92
US6909185B1Jun 21, 2005
Composite material including copper and cuprous oxide and application thereof
HITACHI LTD22 citations92
US6889516B2May 10, 2005
Cooling system for motor and cooling control method
HITACHI LTD24 citations92
US6759964B2Jul 6, 2004
Fault detection system
HITACHI LTD17 citations92
US6724313B2Apr 20, 2004
Fault detection system
HITACHI LTD31 citations92
US6630734B2Oct 7, 2003
Composite material, and manufacturing method and uses of same
HITACHI LTD17 citations92
US5936832AAug 10, 1999
Semiconductor memory device and method of operation thereof
HITACHI LTD22 citations92
US5247198ASep 21, 1993
Semiconductor integrated circuit device with multiplayered wiring
HITACHI LTD47 citations92
US4956693ASep 11, 1990
Semiconductor device
HITACHI LTD62 citations92
US4894801AJan 16, 1990
Stacked MOS transistor flip-flop memory cell
HITACHI LTD43 citations92
US6794854B2Sep 21, 2004
Vehicle power converted with shunt resistor having plate-shape resistive member
HITACHI LTD19 citations91
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
TOKUYAMA TAKESHI
2 patentsSHINETSU CHEMICAL CO
2 patentsHITCHI LTD
1 patentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD
1 patentShowing the top 50 of 115 patents by PatentIndex Score.