Yoshikazu Higaki

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Patents Grantslast 30 patents

Information Patent Grant
Method of separating components of phenols mixture by distillation
- Patent number 5,264,085
- Issue date Nov 23, 1993
- Mitsubishi Petrochemical Company, Ltd.
- Masashi Inaba
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Ethylene copolymer and method of producing same
- Patent number 5,182,349
- Issue date Jan 26, 1993
- Mitsubishi Petrochemical Company, Ltd.
- Tadao Okada
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Method of inhibiting polymerization of styrenes
- Patent number 4,967,027
- Issue date Oct 30, 1990
- Mitsubishi Petrochemical Co., Ltd.
- Hideyuki Takahashi
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for purifying dibromo-dicyanobutane
- Patent number 4,504,423
- Issue date Mar 12, 1985
- Mitsubishi Yuka Fine Chemicals Co., Ltd.
- Yoshikazu Higaki
- C07 - ORGANIC CHEMISTRY