Toyo Hakka Kogyo Kabushiki Kaisha

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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
Menthol glycoside, process for preparing the same and method for re...
- Patent number 3,988,482
- Issue date Oct 26, 1976
- Toyo Hakka Kogyo Kabushiki Kaisha
- Tatsuo Higashiyama
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

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