Inventor
KOBAYASHI SUMIO
25 patents
⚠️ This page may combine multiple inventors who share the name “KOBAYASHI SUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SUMITOMO METAL IND
10 patentsUS5363796ANov 15, 1994
Apparatus and method of growing single crystal
SUMITOMO METAL IND47 citations92
US4210023AJul 1, 1980
Method and apparatus for measuring slag foaming using microwave lever meter
SUMITOMO METAL IND59 citations91
US4248809AFeb 3, 1981
Method and apparatus for detecting damage of blast furnace inside wall repairing materials
SUMITOMO METAL IND26 citations82
US4568200AFeb 4, 1986
Method of and apparatus for measuring surface temperature of metallic body
SUMITOMO METAL IND24 citations75
US4590989AMay 27, 1986
Electromagnetic stirrer
SUMITOMO METAL IND7 citations74
US4693614ASep 15, 1987
Apparatus for detecting slag outflow
SUMITOMO METAL IND10 citations71
US4019562AApr 26, 1977
Automatic molding apparatus with means for controlling pouring rate
SUMITOMO METAL IND11 citations71
US4158380AJun 19, 1979
Continuously casting machine
SUMITOMO METAL IND10 citations68
US5402747AApr 4, 1995
Method of growing crystal
SUMITOMO METAL IND4 citations62
US4580449AApr 8, 1986
Method and apparatus for determining the surface level of molten metal
SUMITOMO METAL IND6 citations60
HITACHI LTD
6 patentsUS6194856B1Feb 27, 2001
Motor driving apparatus including a modularized current control circuit and method of controlling the same
HITACHI LTD180 citations98
US5019773AMay 28, 1991
Method and apparatus for detecting positions and/or speed of a moving body using two phase signals
HITACHI LTD33 citations92
US4808933AFeb 28, 1989
Rotating speed measuring apparatus having a corrector for low and high speeds using angle and frequency transducers
HITACHI LTD8 citations73
US4532464AJul 30, 1985
Control apparatus for induction motor
HITACHI LTD18 citations72
US5200678AApr 6, 1993
Motor driving control apparatus
HITACHI LTD9 citations69
US4733070AMar 22, 1988
Rotational information output device
HITACHI LTD5 citations57
TOKYO SHIBAURA ELECTRIC CO
6 patentsUS4475152AOct 2, 1984
Water-cooled high voltage device
TOKYO SHIBAURA ELECTRIC CO22 citations81
US4414599ANov 8, 1983
Arrester and a semiconductor circuit arrangement with a protection device including the same
TOKYO SHIBAURA ELECTRIC CO12 citations74
US4320445AMar 16, 1982
Gate control circuit for thyristor converter
TOKYO SHIBAURA ELECTRIC CO7 citations72
US4325114AApr 13, 1982
Gate controlling circuit for a thyristor converter
TOKYO SHIBAURA ELECTRIC CO8 citations71
US4313156AJan 26, 1982
Gate controlling circuit for a thyristor converter
TOKYO SHIBAURA ELECTRIC CO8 citations71
US4282568AAug 4, 1981
Electric power converting apparatus
TOKYO SHIBAURA ELECTRIC CO8 citations66