Inventor · disambiguated record
Isao Sugiyama
Also filed as: SUGIYAMA ISAO
24 granted patents·101 citations·filing 1980–2000
95Inventor score
Files withEISAI CO LTD24
Top patents by PatentIndex Score
24 records- 0191US4468394ACephalosporin compoundsEISAI CO LTD·Filed 1982·Granted Aug 28, 1984·25 cites·14 claims
- 0285US4748171ACephem compounds having at the 3-position a (1,4-methylene-1-piperidinio)methyl group or a (1-quinuclidinio)methyl groupEISAI CO LTD·Filed 1986·Granted May 31, 1988·15 cites·9 claims
- 0372US5010188ACephem derivativesEISAI CO LTD·Filed 1988·Granted Apr 23, 1991·7 cites·9 claims
- 0471US5151417A3-substituted vinyl cephalosporin derivativesEISAI CO LTD·Filed 1990·Granted Sep 29, 1992·13 cites·12 claims
- 0565US4921850A3-propenylcephem derivativeEISAI CO LTD·Filed 1987·Granted May 1, 1990·5 cites·11 claims
- 0664US4698336A3-(pyrrolidinio)methyl-3-cephem derivativesEISAI CO LTD·Filed 1986·Granted Oct 6, 1987·6 cites·7 claims
- 0757US4929612AThiadiazolylacetamide cephem derivativesEISAI CO LTD·Filed 1988·Granted May 29, 1990·4 cites·5 claims
- 0853US5373000A7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compoundsEISAI CO LTD·Filed 1992·Granted Dec 13, 1994·4 cites·3 claims
- 0952US5128465AProcess for the preparation of cephem derivatives and intermediates thereforEISAI CO LTD·Filed 1990·Granted Jul 7, 1992·4 cites·3 claims
- 1052US5008260ACephem derivativesEISAI CO LTD·Filed 1988·Granted Apr 16, 1991·2 cites·10 claims
- 1148US5604217A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1995·Granted Feb 18, 1997·2 cites·1 claims
- 1247US5089491A3-propenylcephem derivativeEISAI CO LTD·Filed 1990·Granted Feb 18, 1992·2 cites·6 claims
- 1345US5559225A7-acyl-3-(substituted carbamoyloxy) cephem compoundEISAI CO LTD·Filed 1994·Granted Sep 24, 1996·1 cites·1 claims
- 1444US6218550B1Intermediates useful for the manufacture of carbapenem and a stereoselective manufacturing method thereforEISAI CO LTD·Filed 1998·Granted Apr 17, 2001·2 cites·4 claims
- 1543US6372914B1Intermediates useful for the manufacture of carbapenem and a stereoselective manufacturing method thereforEISAI CO LTD·Filed 2000·Granted Apr 16, 2002·0 cites·4 claims
- 1643US5006649A3-propenylcephem derivativeEISAI CO LTD·Filed 1990·Granted Apr 9, 1991·1 cites·5 claims
- 1742US4352801ACephem derivatives and antibacterial agents comprising said compoundsEISAI CO LTD·Filed 1980·Granted Oct 5, 1982·1 cites·5 claims
- 1842US4331606AN-(Substituted chromone-3-carbonyl)-phenylglycine derivativesEISAI CO LTD·Filed 1980·Granted May 25, 1982·1 cites·5 claims
- 1940US6037341ACarbapenem derivativesEISAI CO LTD·Filed 1995·Granted Mar 14, 2000·4 cites·14 claims
- 2037US4721788A4-cyanopiperidine derivativesEISAI CO LTD·Filed 1986·Granted Jan 26, 1988·1 cites·5 claims
- 2137US4309354AChromone derivativesEISAI CO LTD·Filed 1980·Granted Jan 5, 1982·1 cites·4 claims
- 2233US5741902A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1995·Granted Apr 21, 1998·0 cites·4 claims
- 2331US5587473A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1996·Granted Dec 24, 1996·0 cites·4 claims
- 2431US5563265A7-acyl-3-(substituted carbamoyloxy) cephem compoundsEISAI CO LTD·Filed 1995·Granted Oct 8, 1996·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →