Inventor · disambiguated record
Kouji Yokoyama
Also filed as: YOKOYAMA KOUJI
4 granted patents·3 pending applications·5 citations·filing 1998–2015
62Inventor score
Top patents by PatentIndex Score
7 records- 0168US8846012B2Melanin production inhibitorYOKOYAMA KOUJI·Filed 2009·Granted Sep 30, 2014·0 cites·2 claims
- 0259US2014363389A1Melanin production inhibitorPOLA CHEM IND INC·Filed 2014·Application pending·0 cites
- 0349US2015328107A1Melanin production inhibitorPOLA CHEM IND INC·Filed 2015·Application pending·0 cites
- 0444US6329399B1Antifungal amine derivatives and processing for producing the samePOLA CHEM IND INC·Filed 1998·Granted Dec 11, 2001·3 cites·13 claims
- 0540US6586633B1Amine derivativesPOLA CHEM IND INC·Filed 1998·Granted Jul 1, 2003·2 cites·18 claims
- 0639US2009054515A1Skin-whitening cosmeticPOLA CHEM IND INC·Filed 2007·Application pending·0 cites
- 0738US10568822B2Melanogenesis inhibitor comprising d-pantothenyl alcohol, and skin-whitening cosmetic containing same melanogenesis inhibitorPOLA CHEM IND INC·Filed 2015·Granted Feb 25, 2020·0 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →