Kouji Tomita

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Tokuyama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preventing polymerization of vinyl compound
- Patent number 6,051,735
- Issue date Apr 18, 2000
- Idemitsu Petrochemical Co., Ltd.
- Kenji Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for preventing polymerization of vinyl compound
- Patent number 5,886,220
- Issue date Mar 23, 1999
- Idemitsu Petrochemical Co., Ltd.
- Kenji Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for inhibiting polymerization of a vinyl compound
- Patent number 5,856,568
- Issue date Jan 5, 1999
- Idemitsu Petrochemical Co., Ltd.
- Kenji Okamoto
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing trimellitic acid
- Patent number 4,835,308
- Issue date May 30, 1989
- Idemitsu Petrochemical Co., Ltd.
- Yasuzo Sakakibara
- C07 - ORGANIC CHEMISTRY