Inventor
ISHII RYUICHI
JP30 patents
⚠️ This page may combine multiple inventors who share the name “ISHII RYUICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MITSUBISHI ELECTRIC CORP
15 patentsUS10553559B2Feb 4, 2020
Power semiconductor device
MITSUBISHI ELECTRIC CORP6 citations72
US11088649B2Aug 10, 2021
Power conversion unit
MITSUBISHI ELECTRIC CORP4 citations69
US11430721B2Aug 30, 2022
Power module
MITSUBISHI ELECTRIC CORP1 citations62
US10937725B2Mar 2, 2021
Semiconductor device and method for manufacturing thereof
MITSUBISHI ELECTRIC CORP0 citations59
US12456665B2Oct 28, 2025
Resin-sealed semiconductor device and method for manufacturing resin-sealed semiconductor device
MITSUBISHI ELECTRIC CORP0 citations52
US11581247B2Feb 14, 2023
Semiconductor device resistant to thermal cracking and manufacturing method thereof
MITSUBISHI ELECTRIC CORP0 citations52
US10242930B2Mar 26, 2019
Molded resin-sealed power semiconductor device
MITSUBISHI ELECTRIC CORP0 citations52
US10186501B2Jan 22, 2019
Electric power converter and power module
MITSUBISHI ELECTRIC CORP0 citations52
US12232300B2Feb 18, 2025
Power semiconductor device and method for manufacturing power semiconductor device
MITSUBISHI ELECTRIC CORP0 citations51
US10727189B2Jul 28, 2020
Power semiconductor device
MITSUBISHI ELECTRIC CORP0 citations51
US12456666B2Oct 28, 2025
Semiconductor device and manufacturing method therefor
MITSUBISHI ELECTRIC CORP0 citations48
US12555968B2Feb 17, 2026
Terminal member, assembly, semiconductor device, and methods for manufacturing same
MITSUBISHI ELECTRIC CORP0 citations45
US11569148B2Jan 31, 2023
Semiconductor device with a metal plate
MITSUBISHI ELECTRIC CORP0 citations42
US10403559B2Sep 3, 2019
Power semiconductor device
MITSUBISHI ELECTRIC CORP0 citations40
US9018756B2Apr 28, 2015
Semiconductor device
MITSUBISHI ELECTRIC CORP0 citations40
TOSHIBA KK
10 patentsUS6499946B1Dec 31, 2002
Steam turbine rotor and manufacturing method thereof
TOSHIBA KK74 citations94
US7484926B2Feb 3, 2009
Steam turbine power plant
TOSHIBA KK21 citations92
US5779821AJul 14, 1998
Rotor for steam turbine and manufacturing method thereof
TOSHIBA KK20 citations92
US7238005B2Jul 3, 2007
Steam turbine power plant
TOSHIBA KK17 citations91
US6821360B2Nov 23, 2004
Heat-resisting steel, method for thermally treating heat-resisting steel, and components made of heat-resisting steel
TOSHIBA KK6 citations73
US6193469B1Feb 27, 2001
High toughness heat-resistant steel, turbine rotor and method of producing the same
TOSHIBA KK13 citations73
US7651318B2Jan 26, 2010
Steam turbine
TOSHIBA KK4 citations62
US6494970B1Dec 17, 2002
Heat resistant steel casting and method of manufacturing the same
TOSHIBA KK6 citations62
US7850424B2Dec 14, 2010
Steam turbine power plant
TOSHIBA KK2 citations61
US7192247B2Mar 20, 2007
Steam turbine power generation system and low-pressure turbine rotor
TOSHIBA KK1 citations52