Toshiaki Imokawa

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Niihama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for preparing liquid diphenylmethane diisocyanate
- Patent number 5,610,408
- Issue date Mar 11, 1997
- Sumitoma Bayer Urethane Co., Ltd.
- Toshiaki Imokawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Method for preventing coloration of aromatic isocyanate compounds
- Patent number 5,258,548
- Issue date Nov 2, 1993
- Sumitomo Bayer Urethane Co., Ltd.
- Toshiaki Imokawa
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Low-viscosity polyol composition containing potassium titanate need...
- Patent number 5,096,956
- Issue date Mar 17, 1992
- Sumitomo Bayer Urethane Co., Ltd.
- Kanemitsu Kondo
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Magnetic recording medium, a process for preparing a magnetic recor...
- Patent number 4,686,145
- Issue date Aug 11, 1987
- Sumitomo Bayer Urethane Co., Ltd.
- Masaru Honda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...