Inventor · disambiguated record
Ryosuke Ushijima
Also filed as: USHIJIMA RYOSUKE
25 granted patents·152 citations·filing 1985–1999
95Inventor score
Top patents by PatentIndex Score
25 records- 0186US5707987ACarbapenem derivativesBANYU PHARMA CO LTD·Filed 1995·Granted Jan 13, 1998·46 cites·30 claims
- 0281US4677100ACephalosporin derivativesBANYU PHARMA CO LTD·Filed 1985·Granted Jun 30, 1987·16 cites·8 claims
- 0380US4958029AProcess for the production of isoindoline derivatives, novel intermediates and process for their productionBANYU PHARMA CO LTD·Filed 1988·Granted Sep 18, 1990·16 cites·9 claims
- 0479US4782155ACephalosporin derivatives, processes for their preparation and antibacterial agentsBANYU PHARMA CO LTD·Filed 1987·Granted Nov 1, 1988·13 cites·4 claims
- 0573US4742053A3-Isoquinoliniomethyl cephalosporin derivativesBANYU PHARMA CO LTD·Filed 1985·Granted May 3, 1988·13 cites·6 claims
- 0666US5112818A2-(2-cyclopropylpyrrolidin-4-ylthio)carbapenhem derivativesBANYU PHARMA CO LTD·Filed 1990·Granted May 12, 1992·9 cites·8 claims
- 0757US4959469ACrystalline cephalosporin compoundsBANYU PHARMA CO LTD·Filed 1989·Granted Sep 25, 1990·4 cites·3 claims
- 0857US4914227ACertain intermediate 3-carbamoyloxyalkyl propiolic acid derivativesBANYU PHARMACEUTICAL COMPANY L·Filed 1986·Granted Apr 3, 1990·4 cites·7 claims
- 0954US5084453A1-carboxy-1-vinyloxyimino aminothiazole cephalosporin derivativesBANYU PHARMA CO LTD·Filed 1987·Granted Jan 28, 1992·4 cites·8 claims
- 1053US4880797ACephalosporin derivatives and antibacterial agentsBANYU PHARMA CO LTD·Filed 1987·Granted Nov 14, 1989·3 cites·8 claims
- 1147US5403835ACephalosporin derivativesBANYU PHARMA CO LTD·Filed 1989·Granted Apr 4, 1995·2 cites·2 claims
- 1246US5061794ACephalosporin derivatives, and antibacterial agentsBANYU PHARMA CO LTD·Filed 1989·Granted Oct 29, 1991·2 cites·8 claims
- 1343US5438054A2-(substituted pyrrolidinylthio) carbapenem derivativesBANYU PHARMA CO LTD·Filed 1994·Granted Aug 1, 1995·2 cites·19 claims
- 1443US5373002A2-(substituted pyrrolidinylthio) carbapenem derivativesBANYU PHARMA CO LTD·Filed 1992·Granted Dec 13, 1994·2 cites·13 claims
- 1542US4883868A7-amino-3-(substituted isoindolinium)methyl-3-cephem derivativesBANYU PHARMA CO LTD·Filed 1987·Granted Nov 28, 1989·4 cites·10 claims
- 1641US6251891B1Carbapenem derivativesBANYU PHARMA CO LTD·Filed 1999·Granted Jun 26, 2001·3 cites·3 claims
- 1740US5407930ACephalosporin derivativesBANYU PHARMA CO LTD·Filed 1994·Granted Apr 18, 1995·1 cites·7 claims
- 1840US5068322ACrystalline cephalosporin compoundsBANYU PHARMA CO LTD·Filed 1990·Granted Nov 26, 1991·1 cites·1 claims
- 1940US4988687ACephalosporin derivatives, and antibacterial agentsBANYU PHARMACEUTICAL COMPANY L·Filed 1989·Granted Jan 29, 1991·1 cites·6 claims
- 2039US4958024AProcess for preparing 2-carbamoyloxyalkyl-1,4-dihydropyridine derivativesBANYU PHARMACEUTICAL COMPANY L·Filed 1988·Granted Sep 18, 1990·1 cites·5 claims
- 2138US6114524AProcess for producing halogenated heteroaryl compoundsBANYU PHARMA CO LTD·Filed 1997·Granted Sep 5, 2000·2 cites·4 claims
- 2238US5095013A2-(2-vinylpyrrolidinylthio)carbapenem derivativesBANYU PHARMA CO LTD·Filed 1990·Granted Mar 10, 1992·1 cites·11 claims
- 2337US5374720A2-(substituted pyrrolidinylthio)carbapenem derivativesBANYU PHARMA CO LTD·Filed 1991·Granted Dec 20, 1994·1 cites·4 claims
- 2430US5225406A1-carboxy-1-vinyloxyimino aminothiazole cephalosporin derivativesBANYU PHARMA CO LTD·Filed 1991·Granted Jul 6, 1993·1 cites·7 claims
- 2529US4987235AIsoindoline derivatives and processes for their preparationBANYU PHARMA CO LTD·Filed 1988·Granted Jan 22, 1991·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →