Inventor · disambiguated record
Shizumasa Kijima
Also filed as: IGARASHI TOSHIJI · KIJIMA SHIZUMASA · TAKAYANAGI KEIZO
28 granted patents·160 citations·filing 1975–1992
96Inventor score
Files withEISAI CO LTD28
Top patents by PatentIndex Score
28 records- 0182US4175139AHypertension treating agent containing polyprenyl alcoholEISAI CO LTD·Filed 1978·Granted Nov 20, 1979·14 cites·15 claims
- 0277US4169157ATherapeutic preparations for peptic ulcers comprising aliphatic ketone derivativeEISAI CO LTD·Filed 1978·Granted Sep 25, 1979·30 cites·2 claims
- 0372US4039573AProcess for preparation of 1,4-benzohydroquinone derivativesEISAI CO LTD·Filed 1975·Granted Aug 2, 1977·9 cites·4 claims
- 0471US4061660AProcess for synthesis of coenzyme Q compoundsEISAI CO LTD·Filed 1976·Granted Dec 6, 1977·8 cites·7 claims
- 0570US4468458ATwo-functional-group-containing terpenoids, processes for the preparation of the same, and anti-ulcer agents containing the sameEISAI CO LTD·Filed 1982·Granted Aug 28, 1984·11 cites·7 claims
- 0668US3998858AProcess for synthesis of coenzymes qEISAI CO LTD·Filed 1975·Granted Dec 21, 1976·7 cites·6 claims
- 0767US4208426APyranochromone derivatives and therapeutic composition comprising same for treatment of allergic diseasesEISAI CO LTD·Filed 1978·Granted Jun 17, 1980·5 cites·28 claims
- 0865US4338251ATwo-functional-group-containing terpenoids, processes for the preparation of the same, and anti-ulcer agents containing the sameEISAI CO LTD·Filed 1980·Granted Jul 6, 1982·8 cites·4 claims
- 0965US4062879AProcess for synthesis of coenzyme Q compoundsEISAI CO LTD·Filed 1976·Granted Dec 13, 1977·6 cites·7 claims
- 1064US4130648A5-Fluorouracil derivatives and antitumor preparations containing the sameEISAI CO LTD·Filed 1977·Granted Dec 19, 1978·7 cites·10 claims
- 1162US4474881AProcess for preparing polyprenyl carboxylic acid derivativesEISAI CO LTD·Filed 1982·Granted Oct 2, 1984·7 cites·8 claims
- 1260US4163864AProcess for preparing 2-methyl-3-prenyl-4,5,6-trimethoxyphenolEISAI CO LTD·Filed 1978·Granted Aug 7, 1979·6 cites·2 claims
- 1360US4107193APolyprenyl carboxylic acid compoundEISAI CO LTD·Filed 1977·Granted Aug 15, 1978·6 cites·18 claims
- 1457US4199587AMethod of treating hypertension with polyprenyl alcohol esterEISAI CO LTD·Filed 1979·Granted Apr 22, 1980·4 cites·16 claims
- 1556US4130659APolyprenyl carboxylic acid compound and hypotensive agent containing it as active ingredientEISAI CO LTD·Filed 1978·Granted Dec 19, 1978·4 cites·10 claims
- 1649US5073659AProcess for the preparation of terpenesEISAI CO LTD·Filed 1990·Granted Dec 17, 1991·7 cites·6 claims
- 1749US4449002APolyprenyl sulfonesEISAI CO LTD·Filed 1982·Granted May 15, 1984·5 cites·2 claims
- 1845US5245060ATerpene derivatives and process for preparing the sameEISAI CO LTD·Filed 1992·Granted Sep 14, 1993·3 cites·11 claims
- 1945US4386227ATwo-functional-group-containing terpenoidsEISAI CO LTD·Filed 1982·Granted May 31, 1983·3 cites·4 claims
- 2043US4500463APolyprenyl carboxylic acid derivativesEISAI CO LTD·Filed 1981·Granted Feb 19, 1985·2 cites·14 claims
- 2143US4435423AAnti-ulcer composition comprising terpenoid containing two functional groups and method of treating ulcersEISAI CO LTD·Filed 1982·Granted Mar 6, 1984·3 cites·9 claims
- 2241US4468459AProcess for the preparation of polyprenyl ketone derivativesEISAI CO LTD·Filed 1982·Granted Aug 28, 1984·1 cites·2 claims
- 2340US5104996AProcess for preparing 2,3,5-trimethylbenzoquinoneEISAI CO LTD·Filed 1988·Granted Apr 14, 1992·2 cites·8 claims
- 2434US4613571APolyprenyl sulfone derivatives and process for producing the sameEISAI CO LTD·Filed 1984·Granted Sep 23, 1986·0 cites·1 claims
- 2533US4454330ATwo-functional-group-containing terpenoids, processes for the preparation of the same, and anti-ulcer agents containing the sameEISAI CO LTD·Filed 1982·Granted Jun 12, 1984·0 cites·11 claims
- 2632US4456558APolyprenyl ketone derivativesEISAI CO LTD·Filed 1981·Granted Jun 26, 1984·0 cites·16 claims
- 2731US5102895ANovel vitamin e derivatives and process for the production thereofEISAI CO LTD·Filed 1990·Granted Apr 7, 1992·2 cites·3 claims
- 2829US4057568AProcess 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 →