Inventor · disambiguated record
Kenji Usui
Also filed as: USUI KENJI
8 granted patents·20 citations·filing 1978–2016
81Inventor score
Top patents by PatentIndex Score
8 records- 0172US10065972B2Bicyclic or tricyclic heterocyclic compoundMITSUBISHI TANABE PHARMA CORP·Filed 2015·Granted Sep 4, 2018·2 cites·31 claims
- 0258US4202828AProcess for separation of naphthoquinone and phthalic acidKAWASAKI KASEI CHEMICALS·Filed 1978·Granted May 13, 1980·5 cites·9 claims
- 0349US6414204B1Process for producing allyl chlorideSHOWA DENKO KK·Filed 2001·Granted Jul 2, 2002·1 cites·6 claims
- 0447US4369140AProcess for producing hydroanthraquinonesKAWASAKI KASEI CHEMICALS·Filed 1980·Granted Jan 18, 1983·3 cites·6 claims
- 0543US10793582B2Bicyclic heterocyclic compoundMITSUBISHI TANABE PHARMA CORP·Filed 2016·Granted Oct 6, 2020·0 cites·15 claims
- 0643US5153339AProcess for separation of naphthoquinone and phthalic acidKAWASAKI KASEI CHEMICALS·Filed 1982·Granted Oct 6, 1992·2 cites·6 claims
- 0737US4795604AMethod for molding 1,4,4a,9a-tetrahydroanthraquinoneKAWASAKI KASEI CHEMICALS·Filed 1987·Granted Jan 3, 1989·7 cites·15 claims
- 0831US4412954AProcess for producing 1,4,4a,9a-tetrahydroanthraquinone compoundKAWASAKI KASEI CHEMICALS·Filed 1981·Granted Nov 1, 1983·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →