Inventor · disambiguated record
Seiji Hotta
Also filed as: HOTTA SEIJI
7 granted patents·59 citations·filing 1973–1976
84Inventor score
Files withSUMITOMO CHEMICAL CO7
Top patents by PatentIndex Score
7 records- 0173US4028331AUltra violet absorberSUMITOMO CHEMICAL CO·Filed 1975·Granted Jun 7, 1977·20 cites·9 claims
- 0266US4301227AElectrophotographic liquid developerSUMITOMO CHEMICAL CO·Filed 1976·Granted Nov 17, 1981·14 cites·6 claims
- 0358US4055565AOptical brightening agents of naphthalimide derivativesSUMITOMO CHEMICAL CO·Filed 1973·Granted Oct 25, 1977·5 cites·7 claims
- 0456US4024157AFluoran compounds and recording sheet containing themSUMITOMO CHEMICAL CO·Filed 1974·Granted May 17, 1977·4 cites·3 claims
- 0551US3980577ADiphenylmethane electrophotographic liquid developerSUMITOMO CHEMICAL CO·Filed 1973·Granted Sep 14, 1976·6 cites·5 claims
- 0635US4156682AFluoran compounds and recording sheet containing themSUMITOMO CHEMICAL CO·Filed 1976·Granted May 29, 1979·5 cites·14 claims
- 0734US3947471ABenz (c) fluoran compounds and recording sheet containing themSUMITOMO CHEMICAL CO·Filed 1974·Granted Mar 30, 1976·5 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →