Inventor · disambiguated record
Naohiro Katayama
Also filed as: KATAYAMA NAOHIRO
4 granted patents·70 citations·filing 1976–2004
77Inventor score
Top patents by PatentIndex Score
4 records- 0173US4179899ARefrigerating systemSAWAFUJI ELECTRIC CO LTD·Filed 1978·Granted Dec 25, 1979·27 cites·13 claims
- 0270US4320448AVibrating compressorSAWAFUJI ELECTRIC CO LTD·Filed 1980·Granted Mar 16, 1982·30 cites·10 claims
- 0350US7431383B2Construction machine and method for manufacturing the sameKOBELCO CONSTR MACHINERY LTD·Filed 2004·Granted Oct 7, 2008·8 cites·2 claims
- 0435US4147970ADirect current power supply device for battery chargingSAWAFUJI ELECTRIC CO LTD·Filed 1976·Granted Apr 3, 1979·5 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →