Inventor · disambiguated record
Kimio Hamamura
Also filed as: HAMAMURA KIMIO · TANAKA YASUHIDE
19 granted patents·70 citations·filing 1975–1997
93Inventor score
Top patents by PatentIndex Score
19 records- 0172US4039573AProcess for preparation of 1,4-benzohydroquinone derivativesEISAI CO LTD·Filed 1975·Granted Aug 2, 1977·9 cites·4 claims
- 0268US3998858AProcess for synthesis of coenzymes qEISAI CO LTD·Filed 1975·Granted Dec 21, 1976·7 cites·6 claims
- 0364US4130648A5-Fluorouracil derivatives and antitumor preparations containing the sameEISAI CO LTD·Filed 1977·Granted Dec 19, 1978·7 cites·10 claims
- 0460US5412124APreparation process of naphthoquinone derivative and intermediate for the preparation thereofEISAI KAGAKU KK·Filed 1994·Granted May 2, 1995·6 cites·7 claims
- 0560US4163864AProcess for preparing 2-methyl-3-prenyl-4,5,6-trimethoxyphenolEISAI CO LTD·Filed 1978·Granted Aug 7, 1979·6 cites·2 claims
- 0660US4107193APolyprenyl carboxylic acid compoundEISAI CO LTD·Filed 1977·Granted Aug 15, 1978·6 cites·18 claims
- 0757US4433159ASynthesis of optically active d-alpha tocopherolEISAI CO LTD·Filed 1982·Granted Feb 21, 1984·5 cites·8 claims
- 0856US4130659APolyprenyl carboxylic acid compound and hypotensive agent containing it as active ingredientEISAI CO LTD·Filed 1978·Granted Dec 19, 1978·4 cites·10 claims
- 0954US5476955AProcess for the preparation of a quinone derivativeEISAI KAGAKU KK·Filed 1994·Granted Dec 19, 1995·4 cites·5 claims
- 1045US5245060ATerpene derivatives and process for preparing the sameEISAI CO LTD·Filed 1992·Granted Sep 14, 1993·3 cites·11 claims
- 1143US5677471AProcess for the preparation of quinone derivativeEISAI KAGAKU KK·Filed 1996·Granted Oct 14, 1997·2 cites·2 claims
- 1242US5998611AProcess for producing cephem compounds in an aqueous mediumEISAI KAGAKU KK·Filed 1997·Granted Dec 7, 1999·3 cites·10 claims
- 1340US5104996AProcess for preparing 2,3,5-trimethylbenzoquinoneEISAI CO LTD·Filed 1988·Granted Apr 14, 1992·2 cites·8 claims
- 1438US5686635ATetrahydro-alkenyl-methanonaphthalene-5,8-dione derivativesEISAI KAGAKU KK·Filed 1996·Granted Nov 11, 1997·1 cites·2 claims
- 1536US5874611AButenyl hydroquinone derivativesEISAI KAGAKU KK·Filed 1996·Granted Feb 23, 1999·2 cites·1 claims
- 1636US5608092A1,4,4a 5,8,9a -hexahydro-1α,4α-methanoan-thraquinone derivative(s)EISAI KAGAKU KK·Filed 1995·Granted Mar 4, 1997·1 cites·2 claims
- 1731US5102895ANovel vitamin e derivatives and process for the production thereofEISAI CO LTD·Filed 1990·Granted Apr 7, 1992·2 cites·3 claims
- 1829US5565586AOxidative process for the preparation of allyl quinone derivativesEISAI KAGAKU KK·Filed 1995·Granted Oct 15, 1996·0 cites·2 claims
- 1929US4057568AProcess for synthesis of boric acid esterEISAI CO LTD·Filed 1976·Granted Nov 8, 1977·0 cites·14 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →