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Patents Grants
last 30 patents
Information
Patent Grant
Method of producing diamond of controlled quality and product produ...
Patent number
5,882,740
Issue date
Mar 16, 1999
Ishizuka Research Institute Ltd.
Chia-Fu Chen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Method of producing diamond of controlled quality
Patent number
5,510,157
Issue date
Apr 23, 1996
Ishizuka Research Institute, Ltd.
Chia-Fu Chen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Diamond abrasive and method for producing the same
Patent number
5,061,292
Issue date
Oct 29, 1991
The Ishizuka Research Institute, Ltd.
Chia-Fu Chen
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...