Koichi Katayama

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Ibaraki, JP

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Patents Grantslast 30 patents

Information Patent Grant
Nitrogen-containing tricyclic compounds and drugs containing the same
- Patent number 6,703,388
- Issue date Mar 9, 2004
- Eisai Co., Ltd.
- Mitsuaki Miyamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nitrogen-containing tricyclic compounds and drugs containing the same
- Patent number 6,489,336
- Issue date Dec 3, 2002
- Eisai Co., Ltd.
- Mitsuaki Miyamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Nitrogen-containing tricyclic compounds and drugs containing the same
- Patent number 6,333,322
- Issue date Dec 25, 2001
- Eisai Co., Ltd.
- Mitsuaki Miyamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Quinone derivatives and pharmacological use
- Patent number 5,385,942
- Issue date Jan 31, 1995
- Eisai Co., Ltd.
- Shinya Abe
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ouinone derivatives and pharmacological use
- Patent number 5,210,239
- Issue date May 11, 1993
- Eisai Co., Ltd.
- Shinya Abe
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Nitrogen-containing tricyclic compounds and drugs containing the same
- Publication number 20030171367
- Publication date Sep 11, 2003
- EISAI CO., LTD.
- Mitsuaki Miyamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Nitrogen-containing tricyclic compounds and drugs containing the same
- Publication number 20020103189
- Publication date Aug 1, 2002
- EISAI CO., LTD.
- Mitsuaki Miyamoto
- C07 - ORGANIC CHEMISTRY