Inventor · disambiguated record
Tsutomu Hirayama
Also filed as: HIRAYAMA TSUTOMU
8 granted patents·277 citations·filing 1975–1983
87Inventor score
Top patents by PatentIndex Score
8 records- 0195US4381736AEngine cooling system providing mixed or unmixed head and block coolingTOYOTA MOTOR CO LTD·Filed 1981·Granted May 3, 1983·113 cites·60 claims
- 0294US4369738AEngine cooling system with optionally communicable head cooling circuit and block cooling circuit, and method of operating the sameTOYOTA MOTOR CO LTD·Filed 1981·Granted Jan 25, 1983·80 cites·26 claims
- 0392US4413596AEngine cooling system with optionally communicable head cooling circuit and block cooling circuit, and method of operating the sameTOYOTA MOTOR CO LTD·Filed 1982·Granted Nov 8, 1983·59 cites·26 claims
- 0459US4296357APlasma display systemNIPPON ELECTRIC CO·Filed 1979·Granted Oct 20, 1981·14 cites·12 claims
- 0536US3967157ADriving circuit for a gas discharge display panelNIPPON ELECTRIC CO·Filed 1975·Granted Jun 29, 1976·5 cites·9 claims
- 0635US4100461ADriving circuit for a gas discharge display panelNIPPON ELECTRIC CO·Filed 1976·Granted Jul 11, 1978·4 cites·4 claims
- 0732US4555641APulse signal control circuits with improved turn-off characteristicNEC CORP·Filed 1983·Granted Nov 26, 1985·2 cites·6 claims
- 0829US4359648APulse signal control circuitsNIPPON ELECTRIC CO·Filed 1978·Granted Nov 16, 1982·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →