Yoshitaka Nishida

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Ehime, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing coumarin and derivatives thereof
- Patent number 5,300,662
- Issue date Apr 5, 1994
- Sumitomo Chemical Company, Limited
- Yoshitaka Nishida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing coumarin and derivative thereof
- Patent number 5,260,457
- Issue date Nov 9, 1993
- Sumitomo Chemical Co., Ltd.
- Yoshitaka Nishida
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing 3,4-dihydrocoumarin
- Patent number 5,218,129
- Issue date Jun 8, 1993
- Sumitomo Chemical Co., Ltd.
- Tamio Shirafuji
- C07 - ORGANIC CHEMISTRY