Seiji Kojima

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Nakajo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Method of producing activated clay for treating aromatic hydrocarbons
- Patent number 6,120,595
- Issue date Sep 19, 2000
- Mizusawa Industrial Chemicals, Ltd.
- Seiji Kojima
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Heat-sensitive recording paper and filler therefor
- Patent number 4,544,604
- Issue date Oct 1, 1985
- Mizusawa Industrial Chemicals, Ltd.
- Koichi Usui
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Heat-sensitive recording paper and filler therefor
- Patent number 4,509,064
- Issue date Apr 2, 1985
- Mizusawa Industrial Chemicals, Ltd.
- Koichi Usui
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Novel clay mineral color developer for pressure sensitive recording...
- Patent number 4,405,371
- Issue date Sep 20, 1983
- Mizusawa Kagaku Kogyo Kabushiki Kaisha
- Yujiro Sugahara
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS