Katsutoshi Itani

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Fuji, JA

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Patents Grantslast 30 patents

Information Patent Grant
Etching solutions for copper and copper alloys and etching process...
- Patent number 3,939,089
- Issue date Feb 17, 1976
- Tokai Denka Kogyo Kabushiki Kaisha
- Akira Matsumoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Copper and copper alloy etching solutions and process
- Patent number 3,936,332
- Issue date Feb 3, 1976
- Tokai Denka Kogyo Kabushiki Kaisha
- Akira Matsumoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...