Inventor · disambiguated record
Shigeto Negi
Also filed as: NEGI SHIGETO
38 granted patents·4 pending applications·179 citations·filing 1980–2008
97Inventor score
Top patents by PatentIndex Score
42 records- 0191US4468394ACephalosporin compoundsEISAI CO LTD·Filed 1982·Granted Aug 28, 1984·25 cites·14 claims
- 0287US6841549B1Condensed imidazole compounds and a therapeutic agent for diabetes mellitusEISAI CO LTD·Filed 2000·Granted Jan 11, 2005·35 cites·34 claims
- 0385US4748171ACephem 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
- 0482US4546176A7-Carboxymethoxyphenylacetamido-3-cephem derivatives and antibacterial preparations containing the sameEISAI CO LTD·Filed 1983·Granted Oct 8, 1985·13 cites·14 claims
- 0573US7803949B2Process for preparation of water-soluble azole prodrugsEISAI R&D MAN CO LTD·Filed 2006·Granted Sep 28, 2010·2 cites·24 claims
- 0673US6642377B1Process for the preparation of basic antibiotic-inorganic acid addition salts and intermediate oxalatesEISAI CO LTD·Filed 2000·Granted Nov 4, 2003·7 cites·13 claims
- 0772US5010188ACephem derivativesEISAI CO LTD·Filed 1988·Granted Apr 23, 1991·7 cites·9 claims
- 0871US5151417A3-substituted vinyl cephalosporin derivativesEISAI CO LTD·Filed 1990·Granted Sep 29, 1992·13 cites·12 claims
- 0967US4285941ACephalosporin compounds and antibacterial drugs containing the sameEISAI CO LTD·Filed 1980·Granted Aug 25, 1981·6 cites·18 claims
- 1065US4921850A3-propenylcephem derivativeEISAI CO LTD·Filed 1987·Granted May 1, 1990·5 cites·11 claims
- 1164US4698336A3-(pyrrolidinio)methyl-3-cephem derivativesEISAI CO LTD·Filed 1986·Granted Oct 6, 1987·6 cites·7 claims
- 1263US4344944A7-α-methoxycephalosporin derivatives, and antibacterial drugs onctaining the sameEISAI CO LTD·Filed 1980·Granted Aug 17, 1982·4 cites·9 claims
- 1357US4929612AThiadiazolylacetamide cephem derivativesEISAI CO LTD·Filed 1988·Granted May 29, 1990·4 cites·5 claims
- 1453US5373000A7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compoundsEISAI CO LTD·Filed 1992·Granted Dec 13, 1994·4 cites·3 claims
- 1552US7858809B2Process for production of pyrazole-fused ring derivativesEISAI R&D MAN CO LTD·Filed 2005·Granted Dec 28, 2010·0 cites·5 claims
- 1652US5128465AProcess for the preparation of cephem derivatives and intermediates thereforEISAI CO LTD·Filed 1990·Granted Jul 7, 1992·4 cites·3 claims
- 1752US5008260ACephem derivativesEISAI CO LTD·Filed 1988·Granted Apr 16, 1991·2 cites·10 claims
- 1850US7585982B2Methods for producing isoindole derivativesEISAI R&D MAN CO LTD·Filed 2005·Granted Sep 8, 2009·0 cites·6 claims
- 1950US5541213APropenoic acid derivatives diazole propenoic acid compounds which have useful pharmaceutical utilityEISAI CO LTD·Filed 1994·Granted Jul 30, 1996·8 cites·7 claims
- 2049US7816405B2Calcium bis [(2S)-3-[3-[(2S)-3-(4-chloro-2-cyanophenoxy)-2-fluoropropoxy]phenyl ]-2-isopropoxypropionate] and intermediate thereofEISAI R&D MAN CO LTD·Filed 2006·Granted Oct 19, 2010·0 cites·4 claims
- 2149US4285939ACephalosporin derivatives, and antibacterial drugs containing the derivativesEISAI CO LTD·Filed 1980·Granted Aug 25, 1981·2 cites·6 claims
- 2248US5604217A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1995·Granted Feb 18, 1997·2 cites·1 claims
- 2348US4285940ACephalosporin derivatives, and antibacterial drugs comprising said derivativesEISAI CO LTD·Filed 1980·Granted Aug 25, 1981·3 cites·7 claims
- 2447US5089491A3-propenylcephem derivativeEISAI CO LTD·Filed 1990·Granted Feb 18, 1992·2 cites·6 claims
- 2545US5559225A7-acyl-3-(substituted carbamoyloxy) cephem compoundEISAI CO LTD·Filed 1994·Granted Sep 24, 1996·1 cites·1 claims
- 2644US4513145A2-Methylchromone derivatives and process for their preparationEISAI CO LTD·Filed 1983·Granted Apr 23, 1985·1 cites·4 claims
- 2743US5006649A3-propenylcephem derivativeEISAI CO LTD·Filed 1990·Granted Apr 9, 1991·1 cites·5 claims
- 2842US4352801ACephem derivatives and antibacterial agents comprising said compoundsEISAI CO LTD·Filed 1980·Granted Oct 5, 1982·1 cites·5 claims
- 2942US4331606AN-(Substituted chromone-3-carbonyl)-phenylglycine derivativesEISAI CO LTD·Filed 1980·Granted May 25, 1982·1 cites·5 claims
- 3042US2010094001A1Composition containing stability-improved chloromethyl phosphate derivative and process for producing sameEISAI R&D MAN CO LTD·Filed 2008·Application pending·0 cites
- 3141US5606073ADiazole-propenoic acid compoundsEISAI CO LTD·Filed 1995·Granted Feb 25, 1997·4 cites·2 claims
- 3240US2009069591A1Calcium Bis [ (2S) -3- [3-[ (2S) -3- (4-Chloro-2-Cyanophenoxy) -2- Fluoropropoxy]Phenyl] -2- Isopropoxypropionate] and Intermediate ThereofEISAI R&D MAN CO LTD·Filed 2006·Application pending·0 cites
- 3338US2009114877A1Composition Containing Stability-Improved Chloromethyl Phosphate Derivatve and Process for Producing SameEISAI R&D MAN CO LTD·Filed 2006·Application pending·0 cites
- 3437US4309354AChromone derivativesEISAI CO LTD·Filed 1980·Granted Jan 5, 1982·1 cites·4 claims
- 3536US4415567A7α-Methoxycephalosporin derivatives, and antibacterial drugs containing the sameEISAI CO LTD·Filed 1982·Granted Nov 15, 1983·0 cites·5 claims
- 3633US6620945B2Process for producing stereoisomer of pyrrolidine derivativeEISAI CO LTD·Filed 2002·Granted Sep 16, 2003·0 cites·20 claims
- 3733US5741902A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1995·Granted Apr 21, 1998·0 cites·4 claims
- 3832US2004073045A1Pyrrolidine derivative and process for producing the sameFiled 2002·Application pending·0 cites
- 3931US5587473A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1996·Granted Dec 24, 1996·0 cites·4 claims
- 4031US5563265A7-acyl-3-(substituted carbamoyloxy) cephem compoundsEISAI CO LTD·Filed 1995·Granted Oct 8, 1996·0 cites·9 claims
- 4128US4448775A3-Carbamoyloxymethylcephem derivatives, and antibacterial drugs containing sameEISAI CO LTD·Filed 1982·Granted May 15, 1984·0 cites·2 claims
- 4228US4433142AProcess for the preparation of 7-(2-amino-2-phenylacetamido) cephem derivativesEISAI CO LTD·Filed 1982·Granted Feb 21, 1984·0 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →