Harumasa Tanabe

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Patents Grantslast 30 patents

Information Patent Grant
Process for separating methyl substituted naphthalene by crystalliz...
- Patent number 4,992,619
- Issue date Feb 12, 1991
- Showa Shell Sekiyu K.K.
- Shunichi Koide
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separating indole in refined form
- Patent number 4,966,978
- Issue date Oct 30, 1990
- Kabushiki Kaisha Kobe Seiko Sho
- Yoshiki Sato
- C07 - ORGANIC CHEMISTRY