Inventor · disambiguated record
Yoshimasa Machida
Also filed as: MACHIDA YOSHIMASA
42 granted patents·181 citations·filing 1980–1998
97Inventor score
Top patents by PatentIndex Score
42 records- 0191US4468394ACephalosporin compoundsEISAI CO LTD·Filed 1982·Granted Aug 28, 1984·25 cites·14 claims
- 0285US5849912ABiphenyl derivativesEISAI CO LTD·Filed 1997·Granted Dec 15, 1998·31 cites·6 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
- 0572US5010188ACephem derivativesEISAI CO LTD·Filed 1988·Granted Apr 23, 1991·7 cites·9 claims
- 0669US5382579ATriazolo-1,4-diazepine derivatives and their use in pharmaceuticalsEISAI CO LTD·Filed 1991·Granted Jan 17, 1995·9 cites·21 claims
- 0768US5409909A1,4-diazepine derivative and its pharmaceutical useEISAI CO LTD·Filed 1994·Granted Apr 25, 1995·9 cites·12 claims
- 0867US4285941ACephalosporin compounds and antibacterial drugs containing the sameEISAI CO LTD·Filed 1980·Granted Aug 25, 1981·6 cites·18 claims
- 0965US4921850A3-propenylcephem derivativeEISAI CO LTD·Filed 1987·Granted May 1, 1990·5 cites·11 claims
- 1064US4698336A3-(pyrrolidinio)methyl-3-cephem derivativesEISAI CO LTD·Filed 1986·Granted Oct 6, 1987·6 cites·7 claims
- 1163US4344944A7-α-methoxycephalosporin derivatives, and antibacterial drugs onctaining the sameEISAI CO LTD·Filed 1980·Granted Aug 17, 1982·4 cites·9 claims
- 1259US6281214B1Biphenyl derivativesEISAI CO LTD·Filed 1998·Granted Aug 28, 2001·7 cites·4 claims
- 1357US5273985AGlycerin derivative and its pharmacological useEISAI CO LTD·Filed 1991·Granted Dec 28, 1993·4 cites·15 claims
- 1457US4929612AThiadiazolylacetamide cephem derivativesEISAI CO LTD·Filed 1988·Granted May 29, 1990·4 cites·5 claims
- 1556US5221671ATriazolo-1,4-diazepine derivatives and their use in pharmaceuticalsEISAI CO LTD·Filed 1991·Granted Jun 22, 1993·4 cites·15 claims
- 1655US5298649ANaphthalene derivativeEISAI CO LTD·Filed 1991·Granted Mar 29, 1994·4 cites·22 claims
- 1755US5134111ANaphthalene derivativeEISAI CO LTD·Filed 1989·Granted Jul 28, 1992·3 cites·6 claims
- 1853US5373000A7Beta-(thiadiazolyl)-2-iminoacetamido-3cephem compoundsEISAI CO LTD·Filed 1992·Granted Dec 13, 1994·4 cites·3 claims
- 1952US5008260ACephem derivativesEISAI CO LTD·Filed 1988·Granted Apr 16, 1991·2 cites·10 claims
- 2049US4285939ACephalosporin derivatives, and antibacterial drugs containing the derivativesEISAI CO LTD·Filed 1980·Granted Aug 25, 1981·2 cites·6 claims
- 2148US5604217A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1995·Granted Feb 18, 1997·2 cites·1 claims
- 2248US4285940ACephalosporin derivatives, and antibacterial drugs comprising said derivativesEISAI CO LTD·Filed 1980·Granted Aug 25, 1981·3 cites·7 claims
- 2347US5089491A3-propenylcephem derivativeEISAI CO LTD·Filed 1990·Granted Feb 18, 1992·2 cites·6 claims
- 2445US5559225A7-acyl-3-(substituted carbamoyloxy) cephem compoundEISAI CO LTD·Filed 1994·Granted Sep 24, 1996·1 cites·1 claims
- 2544US4513145A2-Methylchromone derivatives and process for their preparationEISAI CO LTD·Filed 1983·Granted Apr 23, 1985·1 cites·4 claims
- 2643US5006649A3-propenylcephem derivativeEISAI CO LTD·Filed 1990·Granted Apr 9, 1991·1 cites·5 claims
- 2742US4352801ACephem derivatives and antibacterial agents comprising said compoundsEISAI CO LTD·Filed 1980·Granted Oct 5, 1982·1 cites·5 claims
- 2842US4331606AN-(Substituted chromone-3-carbonyl)-phenylglycine derivativesEISAI CO LTD·Filed 1980·Granted May 25, 1982·1 cites·5 claims
- 2941US5482937A1,4-diazepine derivative and its pharmaceutical useEISAI CO LTD·Filed 1994·Granted Jan 9, 1996·1 cites·16 claims
- 3040US5037827AGlycerin derivative and its pharmacological useEISAI CO LTD·Filed 1989·Granted Aug 6, 1991·2 cites·30 claims
- 3137US4309354AChromone derivativesEISAI CO LTD·Filed 1980·Granted Jan 5, 1982·1 cites·4 claims
- 3236US5476863AGlycerin derivative and its pharmacological useEISAI CO LTD·Filed 1993·Granted Dec 19, 1995·0 cites·5 claims
- 3336US5476864AGlycerin derivative and its pharmacological useEISAI CO LTD·Filed 1993·Granted Dec 19, 1995·0 cites·12 claims
- 3436US4415567A7α-Methoxycephalosporin derivatives, and antibacterial drugs containing the sameEISAI CO LTD·Filed 1982·Granted Nov 15, 1983·0 cites·5 claims
- 3534US5438045A1,4-diazepine derivative and its pharmaceutical useEISAI CO LTD·Filed 1993·Granted Aug 1, 1995·0 cites·12 claims
- 3634US5304553A1,4-diazepine derivative and its pharmaceutical useEISAI CO LTD·Filed 1993·Granted Apr 19, 1994·1 cites·17 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
- 3831US5587473A7-acyl-3-(substituted carbamoyloxy) cephem compounds and process for their preparationEISAI CO LTD·Filed 1996·Granted Dec 24, 1996·0 cites·4 claims
- 3931US5563265A7-acyl-3-(substituted carbamoyloxy) cephem compoundsEISAI CO LTD·Filed 1995·Granted Oct 8, 1996·0 cites·9 claims
- 4031US5468740A1,4-diazepine derivative and its pharmaceutical useEISAI CO LTD·Filed 1995·Granted Nov 21, 1995·0 cites·13 claims
- 4128US4448775A3-Carbamoyloxymethylcephem derivatives, and antibacterial drugs containing sameEISAI CO LTD·Filed 1982·Granted May 15, 1984·0 cites·2 claims
- 4226US5527948ANaphthalene derivativeEISAI CORP LTD·Filed 1995·Granted Jun 18, 1996·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →