Inventor · disambiguated record
Sumio Kobayashi
Also filed as: KOBAYASHI SUMIO
25 granted patents·530 citations·filing 1975–2000
96Inventor score
Files withSUMITOMO METAL IND10HITACHI LTD6TOKYO SHIBAURA ELECTRIC CO6TOSHIBA KK2NIPPON KINZOKU CO LTD1
Top patents by PatentIndex Score
25 records- 0195US6194856B1Motor driving apparatus including a modularized current control circuit and method of controlling the sameHITACHI LTD·Filed 2000·Granted Feb 27, 2001·180 cites·12 claims
- 0288US4210023AMethod and apparatus for measuring slag foaming using microwave lever meterSUMITOMO METAL IND·Filed 1978·Granted Jul 1, 1980·59 cites·18 claims
- 0386US4248809AMethod and apparatus for detecting damage of blast furnace inside wall repairing materialsSUMITOMO METAL IND·Filed 1979·Granted Feb 3, 1981·26 cites·4 claims
- 0484US5363796AApparatus and method of growing single crystalSUMITOMO METAL IND·Filed 1992·Granted Nov 15, 1994·47 cites·24 claims
- 0581US5019773AMethod and apparatus for detecting positions and/or speed of a moving body using two phase signalsHITACHI LTD·Filed 1989·Granted May 28, 1991·33 cites·7 claims
- 0666US4532464AControl apparatus for induction motorHITACHI LTD·Filed 1983·Granted Jul 30, 1985·18 cites·9 claims
- 0764US4158380AContinuously casting machineSUMITOMO METAL IND·Filed 1978·Granted Jun 19, 1979·10 cites·5 claims
- 0863US4693614AApparatus for detecting slag outflowSUMITOMO METAL IND·Filed 1986·Granted Sep 15, 1987·10 cites·3 claims
- 0960US4568200AMethod of and apparatus for measuring surface temperature of metallic bodySUMITOMO METAL IND·Filed 1982·Granted Feb 4, 1986·24 cites·18 claims
- 1060US4475152AWater-cooled high voltage deviceTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Oct 2, 1984·22 cites·4 claims
- 1159US4414599AArrester and a semiconductor circuit arrangement with a protection device including the sameTOKYO SHIBAURA ELECTRIC CO·Filed 1982·Granted Nov 8, 1983·12 cites·14 claims
- 1250US4313156AGate controlling circuit for a thyristor converterTOKYO SHIBAURA ELECTRIC CO·Filed 1979·Granted Jan 26, 1982·8 cites·4 claims
- 1349US4019562AAutomatic molding apparatus with means for controlling pouring rateSUMITOMO METAL IND·Filed 1975·Granted Apr 26, 1977·11 cites·12 claims
- 1446US4325114AGate controlling circuit for a thyristor converterTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Apr 13, 1982·8 cites·6 claims
- 1543US4320445AGate control circuit for thyristor converterTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Mar 16, 1982·7 cites·6 claims
- 1642US4808933ARotating speed measuring apparatus having a corrector for low and high speeds using angle and frequency transducersHITACHI LTD·Filed 1987·Granted Feb 28, 1989·8 cites·12 claims
- 1742US4590989AElectromagnetic stirrerSUMITOMO METAL IND·Filed 1984·Granted May 27, 1986·7 cites·10 claims
- 1837US5200678AMotor driving control apparatusHITACHI LTD·Filed 1990·Granted Apr 6, 1993·9 cites·21 claims
- 1936US5402747AMethod of growing crystalSUMITOMO METAL IND·Filed 1993·Granted Apr 4, 1995·4 cites·12 claims
- 2036US4282568AElectric power converting apparatusTOKYO SHIBAURA ELECTRIC CO·Filed 1980·Granted Aug 4, 1981·8 cites·7 claims
- 2135US4580449AMethod and apparatus for determining the surface level of molten metalSUMITOMO METAL IND·Filed 1983·Granted Apr 8, 1986·6 cites·13 claims
- 2234US4947282AThyristor valve with improved gate pulse generating schemeTOSHIBA KK·Filed 1988·Granted Aug 7, 1990·5 cites·9 claims
- 2334US4733070ARotational information output deviceHITACHI LTD·Filed 1985·Granted Mar 22, 1988·5 cites·7 claims
- 2432US5852556APower converterTOSHIBA KK·Filed 1996·Granted Dec 22, 1998·2 cites·15 claims
- 2529US4236200ASemiconductor circuit having a series-connected reactorNIPPON KINZOKU CO LTD·Filed 1978·Granted Nov 25, 1980·1 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →