Hitoshi Ohba

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Saitama, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method for the polymerization of vinyl chloride monomer in an aqeou...
- Patent number RE33284
- Issue date Jul 31, 1990
- Shin-Etsu Chemical Co., Ltd.
- Kenichi Itoh
- 526 - Synthetic resins or natural rubbers
Information Patent Grant
Method for the polymerization of vinyl chloride monomer in an aqueo...
- Patent number 4,694,053
- Issue date Sep 15, 1987
- Shin-Etsu Chemical Co., Ltd.
- Kenichi Itoh
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing aqueous suspension containing organic azo com...
- Patent number 4,500,649
- Issue date Feb 19, 1985
- Wako Pure Chemical Industries, Ltd.
- Motoaki Tanaka
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...