Shumpei Shimizu

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Moses Lake, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing high purity chemicals
- Patent number 4,892,625
- Issue date Jan 9, 1990
- Tama Chemicals Co., Ltd.
- Shumpei Shimizu
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for producing silica of high purity
- Patent number 4,857,290
- Issue date Aug 15, 1989
- Moses Lake Industries, Inc.
- Shumpei Shimizu
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Method for production of aqueous quaternary ammonium hydroxide solu...
- Patent number 4,634,509
- Issue date Jan 6, 1987
- Tama Chemical Co., Ltd.
- Shumpei Shimizu
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR