Osamu Kawashima

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Kitakyushu, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for the epimerization of aminated phthalideisoquinolines
- Patent number 4,704,458
- Issue date Nov 3, 1987
- Mitsubishi Chemical Industries Limited
- Yoshiyuki Takeda
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preparation of phthalide derivatives
- Patent number 4,684,732
- Issue date Aug 4, 1987
- Mitsubishi Chemical Industries Limited
- Masao Taniguchi
- C07 - ORGANIC CHEMISTRY