Naoki Okabe

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Tokyo, JP

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Patents Grantslast 30 patents

Information Patent Grant
Treatment solution for forming black hexavalent chromium-free chemi...
- Patent number 8,337,641
- Issue date Dec 25, 2012
- Dipsol Chemicals Co., Ltd.
- Tomitaka Yamamoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
TREATMENT SOLUTION FOR FORMING BLACK HEXAVALENT CHROMIUM-FREE CHEMI...
- Publication number 20080210341
- Publication date Sep 4, 2008
- DIPSOL CHEMICALS CO. LTD.
- Tomitaka Yamamoto
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...