Inventor
SUWA TOKIHITO
JP28 patents
⚠️ This page may combine multiple inventors who share the name “SUWA TOKIHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI LTD
12 patentsUS8054633B2Nov 8, 2011
Power converter
HITACHI LTD32 citations92
US7589400B2Sep 15, 2009
Inverter and vehicle drive unit using the same
HITACHI LTD29 citations92
US6190834B1Feb 20, 2001
Photosensitive resin composition, and multilayer printed circuit board using the same
HITACHI LTD44 citations92
US5914216AJun 22, 1999
Multilayer circuit board and photosensitive resin composition used therefor
HITACHI LTD18 citations92
US7746023B2Jun 29, 2010
Position detecting device and synchronous motor driving device using the same
HITACHI LTD46 citations90
US7777433B2Aug 17, 2010
Power converter
HITACHI LTD36 citations89
US7095623B2Aug 22, 2006
Multilayer circuit board, process of manufacturing same, board for multilayer circuitry, and electronic apparatus
HITACHI LTD15 citations82
US7990085B2Aug 2, 2011
Generator control unit
HITACHI LTD11 citations81
US6772515B2Aug 10, 2004
Method of producing multilayer printed wiring board
HITACHI LTD12 citations74
US5356698AOct 18, 1994
Adhesive agent for substrate of electroless plating, printed circuit board using same, and method of producing same
HITACHI LTD16 citations69
US7170012B2Jan 30, 2007
Multilayer circuit board, process of manufacturing same, board for multilayer circuitry, and electronic apparatus
HITACHI LTD2 citations61
US6306481B1Oct 23, 2001
Multilayer circuit board having insulating layer with via-holes
HITACHI LTD1 citations51
HITACHI AUTOMOTIVE SYSTEMS LTD
6 patentsUS10034401B2Jul 24, 2018
Power semiconductor device and power conversion device
HITACHI AUTOMOTIVE SYSTEMS LTD6 citations84
US11432419B2Aug 30, 2022
Power semiconductor device and power conversion device
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations73
US11011443B2May 18, 2021
Power semiconductor device including a spacer
HITACHI AUTOMOTIVE SYSTEMS LTD6 citations73
US10512181B2Dec 17, 2019
Power semiconductor device and power conversion device
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations73
US11201143B2Dec 14, 2021
Semiconductor device with a protruding base member
HITACHI AUTOMOTIVE SYSTEMS LTD0 citations52
US10068880B2Sep 4, 2018
Power module
HITACHI AUTOMOTIVE SYSTEMS LTD1 citations52