Inventor · disambiguated record
Fujio Ishikawa
Also filed as: ISHIKAWA FUJIO · TSUCHIYA ZENKICHI
3 granted patents·15 citations·filing 1977–1988
64Inventor score
Top patents by PatentIndex Score
3 records- 0141US4160925AQuadruple frequency converterTOYO ELECTRIC MFG CO LTD·Filed 1977·Granted Jul 10, 1979·8 cites·4 claims
- 0231US4845824AClip-clinching device for a coil-spring unit of a mattressAISIN SEIKI·Filed 1988·Granted Jul 11, 1989·6 cites·1 claims
- 0321US4155114ATreble frequency converterTOYO ELECTRIC MFG CO LTD·Filed 1978·Granted May 15, 1979·1 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →