Inventor · disambiguated record
Sumio Yamamoto
Also filed as: YAMAMOTO SUMIO
9 granted patents·121 citations·filing 1982–1992
88Inventor score
Files withFUJITSU LTD4KANEGAFUCHI CHEMICAL IND2MITSUBISHI ELECTRIC CORP1NIPPON ELECTRIC CO1TOSHIBA KK1
Top patents by PatentIndex Score
9 records- 0175US4546467AMonitor for transmission lineNIPPON ELECTRIC CO·Filed 1983·Granted Oct 8, 1985·38 cites·5 claims
- 0258US5221893AMethod and device for diagnosis of paint film deteriorationTOSHIBA KK·Filed 1992·Granted Jun 22, 1993·23 cites·5 claims
- 0356US4849368AMethod of producing a two-dimensional electron gas semiconductor deviceFUJITSU LTD·Filed 1988·Granted Jul 18, 1989·21 cites·5 claims
- 0451US4999402AMethacrylic acid ester resin compositionKANEGAFUCHI CHEMICAL IND·Filed 1988·Granted Mar 12, 1991·9 cites·11 claims
- 0551US4742379AHEMT with etch-stopFUJITSU LTD·Filed 1984·Granted May 3, 1988·15 cites·10 claims
- 0640US4443704AMethod of electron beam exposureFUJITSU LTD·Filed 1982·Granted Apr 17, 1984·10 cites·5 claims
- 0730US4578343AMethod for producing field effect type semiconductor deviceFUJITSU LTD·Filed 1985·Granted Mar 25, 1986·4 cites·9 claims
- 0828US4663572AProcess for suppressing electron beam drift phenomenon in a cathode ray tubeMITSUBISHI ELECTRIC CORP·Filed 1983·Granted May 5, 1987·0 cites·24 claims
- 0923US4590232AHeat-resistant CPVC resin compositionKANEGAFUCHI CHEMICAL IND·Filed 1985·Granted May 20, 1986·1 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →