Natsuki Samejima

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Hokkaido, JP

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Patents Grantslast 30 patents

Information Patent Grant
Porphyrin derivatives, and their production and use
- Patent number 4,996,312
- Issue date Feb 26, 1991
- Nihon Medi+Physics Co., Ltd.
- Isao Sakata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Porphyrin derivatives
- Patent number 4,849,207
- Issue date Jul 18, 1989
- Nihon Medi+Physics Co., Ltd.
- Isao Sakata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Pheophorbide derivatives and alkaline salts thereof
- Patent number 4,709,022
- Issue date Nov 24, 1987
- Isao Sakata
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
9-desoxo-9-hydroxy-pheophorbide derivatives and alkaline salts thereof
- Patent number 4,604,241
- Issue date Aug 5, 1986
- Isao Sakata
- C07 - ORGANIC CHEMISTRY