Inventor · disambiguated record
Akihisa Yokoyama
Also filed as: YOKOYAMA AKIHISA
4 granted patents·18 citations·filing 1989–1998
70Inventor score
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4 records- 0148US4970023ABiphenyl compounds, method of producing the same as well as liquid crystal compositions and light switch elements each containing the sameNIPPON MINING CO·Filed 1989·Granted Nov 13, 1990·3 cites·5 claims
- 0245US6310070B1Purine derivatives and medicinal use thereofJAPAN ENERGY CORP·Filed 1998·Granted Oct 30, 2001·8 cites·13 claims
- 0342US5098602ANovel halogen-containing ester compounds, and their intermediates, and method of producing the same as well as liquid crystal compositions containing the same and light switching elementsNIPPON MINING CO·Filed 1989·Granted Mar 24, 1992·7 cites·5 claims
- 0427US5137653AAlkanoyl ester compounds and their intermediates and method of producing the sameNIPPON MINING CO·Filed 1991·Granted Aug 11, 1992·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →