E. C. Chemical Co., Ltd.

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Osaka, JP

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Patents Grantslast 30 patents

Information Patent Grant
Polyimide film having denatured surface
- Patent number 6,545,121
- Issue date Apr 8, 2003
- Ube Industries, Ltd.
- Kenji Matsubara
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Atmospheric pressure glow discharge plasma treatment method
- Patent number 5,543,017
- Issue date Aug 6, 1996
- E. C. Chemical Co., Ltd.
- Hiroshi Uchiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Method for treating ozone layer depleting substances
- Patent number 5,439,568
- Issue date Aug 8, 1995
- E. C. Chemical Co., Ltd.
- Hiroshi Uchiyama
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Method for the surface treatment of a metal by atmospheric pressure...
- Patent number 5,384,167
- Issue date Jan 24, 1995
- E. C. Chemical Co., Ltd.
- Atsushi Nishiwaki
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Atmospheric pressure plasma surface treatment process
- Patent number 5,124,173
- Issue date Jun 23, 1992
- E. C. Chemical Co., Ltd.
- Hiroshi Uchiyama
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

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