Inventor · disambiguated record
Keiji Hirai
Also filed as: HIRAI KEIJI
9 granted patents·174 citations·filing 1986–1991
88Inventor score
Files withKYORIN SEIYAKU KK9
Top patents by PatentIndex Score
9 records- 0190US4980470A8-alkoxyquinolonecarboxylic acid and salts thereofKYORIN SEIYAKU KK·Filed 1987·Granted Dec 25, 1990·54 cites·8 claims
- 0288US4894458AQuinolonecarboxylic acid derivatives and their preparationKYORIN SEIYAKU KK·Filed 1988·Granted Jan 16, 1990·52 cites·8 claims
- 0379US5043450A8-alkoxyquinolonecarboxylic acid and salts thereofKYORIN SEIYAKU KK·Filed 1990·Granted Aug 27, 1991·35 cites·5 claims
- 0471US4753953APyridonecarboxylic acid derivatives and antibacterial pharmaceutical compositions thereofKYORIN SEIYAKU KK·Filed 1986·Granted Jun 28, 1988·17 cites·15 claims
- 0567US4791225AHalogenobenzoic acid derivatives and their preparationKYORIN SEIYAKU KK·Filed 1987·Granted Dec 13, 1988·8 cites·1 claims
- 0644US4788320ABenzoylacetic acid ester derivatives and process for their preparationsKYORIN SEIYAKU KK·Filed 1987·Granted Nov 29, 1988·2 cites·5 claims
- 0743US4791118AQuinolonecarboxylic acid derivatives and their preparationKYORIN SEIYAKU KK·Filed 1986·Granted Dec 13, 1988·3 cites·4 claims
- 0835US4826982AQuinolonecarboxylic acid derivativesKYORIN SEIYAKU KK·Filed 1986·Granted May 2, 1989·1 cites·4 claims
- 0928US5244892ACephem compounds, and antibacterial agentsKYORIN SEIYAKU KK·Filed 1991·Granted Sep 14, 1993·2 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →