Inventor · disambiguated record
Keizo Otsuki
Also filed as: OTSUKI KEIZO
9 granted patents·421 citations·filing 1976–1979
91Inventor score
Files withHITACHI LTD9
Top patents by PatentIndex Score
9 records- 0197US4301464ALead frame and semiconductor device employing the same with improved arrangement of supporting leads for securing the semiconductor supporting memberHITACHI LTD·Filed 1979·Granted Nov 17, 1981·228 cites·15 claims
- 0291USD259783SSemiconductorHITACHI LTD·Filed 1979·Granted Jul 7, 1981·25 cites·1 claims
- 0390USD260091SSemiconductorHITACHI LTD·Filed 1979·Granted Aug 4, 1981·24 cites·1 claims
- 0486US4126292AMold dieHITACHI LTD·Filed 1977·Granted Nov 21, 1978·51 cites·2 claims
- 0585USD259560SSemiconductorHITACHI LTD·Filed 1979·Granted Jun 16, 1981·18 cites·1 claims
- 0684USD259782SSemiconductorHITACHI LTD·Filed 1979·Granted Jul 7, 1981·17 cites·1 claims
- 0780USD259559SSemiconductorHITACHI LTD·Filed 1979·Granted Jun 16, 1981·14 cites·1 claims
- 0875USD260986SSemiconductorHITACHI LTD·Filed 1979·Granted Sep 29, 1981·11 cites·1 claims
- 0974US4095253ASingle in-line high power resin-packaged semiconductor device having an improved heat dissipatorHITACHI LTD·Filed 1976·Granted Jun 13, 1978·33 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →