Hiroki Kojima

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Process for surface-treating an aluminum-containing metal
- Patent number 6,306,226
- Issue date Oct 23, 2001
- Nihon Papkerizing Co., Ltd.
- Yasuo Iino
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Composition and method for hydrophilic treatment of aluminum or alu...
- Patent number 6,248,181
- Issue date Jun 19, 2001
- Nihon Parkerizing Co., Ltd.
- Tomohiro Osako
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...