Inventor · disambiguated record

Fumihisa Ichikawa

Also filed as: ICHIKAWA FUMIHISA

2 granted patents·62 citations·filing 1993–1994

66Inventor score

Technology areasH01H H02H

Files withHITACHI LTD2

Top patents by PatentIndex Score

2 records

0181US5402297ACommutating type DC circuit breaker arrangementHITACHI LTD·Filed 1993·Granted Mar 28, 1995·39 cites·4 claims
0260US5576580ADC power supply circuitHITACHI LTD·Filed 1994·Granted Nov 19, 1996·23 cites·10 claims

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