Keiji Hirai

Person

Kuki, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cephem compounds, and antibacterial agents
- Patent number 5,244,892
- Issue date Sep 14, 1993
- Kyorin Pharmaceutical Co., Ltd.
- Seigo Suzue
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
8-alkoxyquinolonecarboxylic acid and salts thereof
- Patent number 5,043,450
- Issue date Aug 27, 1991
- Kyorin Pharmaceutical Co., Ltd.
- Kuniyoshi Masuzawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
8-alkoxyquinolonecarboxylic acid and salts thereof
- Patent number 4,980,470
- Issue date Dec 25, 1990
- Kyorin Pharmaceutical Co., Ltd.
- Kuniyoshi Masuzawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinolonecarboxylic acid derivatives and their preparation
- Patent number 4,894,458
- Issue date Jan 16, 1990
- Kyorin Pharmaceutical Co., Ltd.
- Kuniyoshi Masuzawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinolonecarboxylic acid derivatives
- Patent number 4,826,982
- Issue date May 2, 1989
- Kyorin Pharmaceutical Co., Ltd.
- Kuniyoshi Masuzawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinolonecarboxylic acid derivatives and their preparation
- Patent number 4,791,118
- Issue date Dec 13, 1988
- Kyorin Pharmaceutical Co., Ltd.
- Kuniyoshi Masuzawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Halogenobenzoic acid derivatives and their preparation
- Patent number 4,791,225
- Issue date Dec 13, 1988
- Kyorin Pharmaceutical Co., Ltd.
- Tsutomu Irikura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Benzoylacetic acid ester derivatives and process for their preparat...
- Patent number 4,788,320
- Issue date Nov 29, 1988
- Kyorin Pharmaceutical Co., Ltd.
- Tsutomu Irikura
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pyridonecarboxylic acid derivatives and antibacterial pharmaceutica...
- Patent number 4,753,953
- Issue date Jun 28, 1988
- Kyorin Pharmaceutical Co., Ltd.
- Kuniyoshi Masuzawa
- C07 - ORGANIC CHEMISTRY

Keiji Hirai

Person

Patents Grantslast 30 patents

Cephem compounds, and antibacterial agents

8-alkoxyquinolonecarboxylic acid and salts thereof

8-alkoxyquinolonecarboxylic acid and salts thereof

Quinolonecarboxylic acid derivatives and their preparation

Quinolonecarboxylic acid derivatives

Quinolonecarboxylic acid derivatives and their preparation

Halogenobenzoic acid derivatives and their preparation

Benzoylacetic acid ester derivatives and process for their preparat...

Pyridonecarboxylic acid derivatives and antibacterial pharmaceutica...