Inventor · disambiguated record
Fumihiko Ichikawa
Also filed as: ICHIKAWA FUMIHIKO
5 granted patents·54 citations·filing 1988–2019
77Inventor score
Top patents by PatentIndex Score
5 records- 0169US4976149AUltrasonic distance sensor and monitoring of surface profile utilizing ultrasonic distance sensorKAWASAKI STEEL CO·Filed 1989·Granted Dec 11, 1990·34 cites·57 claims
- 0261US11404749B2Protector, connection module, and end linking member for connection moduleAUTONETWORKS TECHNOLOGIES LTD·Filed 2019·Granted Aug 2, 2022·0 cites·13 claims
- 0359US7974670B2Method of measuring superficial chemical species and apparatus for measuring the sameUNIV WASEDA·Filed 2005·Granted Jul 5, 2011·3 cites·9 claims
- 0456US9863846B2Transmission testing device and transmission testing methodICHIKAWA FUMIHIKO·Filed 2013·Granted Jan 9, 2018·2 cites·8 claims
- 0551US4893510AMethod of measuring distribution of crystal grains in metal sheet and apparatus thereforKAWASAKI STEEL CO·Filed 1988·Granted Jan 16, 1990·15 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →