Inventor · disambiguated record
Kanji Higuchi
Also filed as: HIGUCHI KANJI · OKAMOTO TOKUHIKO
8 granted patents·285 citations·filing 1978–2024
89Inventor score
Top patents by PatentIndex Score
8 records- 0193US4581558ASpark plug for internal combustion engines having an alloy layer between the electrodes and tip endsNIPPON DENSO CO·Filed 1982·Granted Apr 8, 1986·69 cites·4 claims
- 0293US4540910ASpark plug for internal-combustion engineNIPPON DENSO CO·Filed 1983·Granted Sep 10, 1985·79 cites·8 claims
- 0383US4488081AIgnition plugNIPPON DENSO CO·Filed 1982·Granted Dec 11, 1984·36 cites·1 claims
- 0479US4267483AInsulator on spark plug electrode coated with zirconium and vanadium oxidesTOYOTA CHUO KK·Filed 1979·Granted May 12, 1981·30 cites·16 claims
- 0576US4907256AExchange system having originating call restriction functionFUJITSU LTD·Filed 1989·Granted Mar 6, 1990·46 cites·23 claims
- 0663US12283796B2Spark plugNITERRA CO LTD·Filed 2024·Granted Apr 22, 2025·0 cites·8 claims
- 0763US4250426ASpark plug having vanadium oxide islands on central insulatorNIPPON DENSO CO·Filed 1978·Granted Feb 10, 1981·14 cites·4 claims
- 0848USRE35012ESpark plug for internal combustion engines having an alloy layer between the electrodes and tip endsNIPPON DENSO CO·Filed 1993·Granted Aug 8, 1995·11 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →