Inventor · disambiguated record
Sigeo Akiyama
Also filed as: AKIYAMA SIGEO
7 granted patents·161 citations·filing 1987–1994
87Inventor score
Top patents by PatentIndex Score
7 records- 0191US4804866ASolid state relayMATSUSHITA ELECTRIC WORKS LTD·Filed 1987·Granted Feb 14, 1989·75 cites·5 claims
- 0274US4902636AMethod for manufacturing a depletion type double-diffused metal-oxide semiconductor field effect transistor deviceMATSUSHITA ELECTRIC WORKS LTD·Filed 1989·Granted Feb 20, 1990·28 cites·2 claims
- 0359US5278422ANormally open solid state relay with minimized response time of relay action upon being turned offMATSUSHITA ELECTRIC WORKS LTD·Filed 1992·Granted Jan 11, 1994·16 cites·3 claims
- 0456US5055895ADouble-diffused metal-oxide semiconductor field effect transistor deviceMATSUSHUTA ELECTRIC WORKS LTD·Filed 1989·Granted Oct 8, 1991·16 cites·2 claims
- 0556US4873202ASolid state relay and method of manufacturing the sameMATSUSHITA ELECTRIC WORKS LTD·Filed 1988·Granted Oct 10, 1989·10 cites·5 claims
- 0650US5296723ALow output capacitance, double-diffused field effect transistorMATSUSHITA ELECTRIC WORKS LTD·Filed 1992·Granted Mar 22, 1994·14 cites·10 claims
- 0725US5420046AMethod for manufacturing optically triggered lateral thyristorMATSUSHITA ELECTRIC WORKS LTD·Filed 1994·Granted May 30, 1995·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →