Youji Ono

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Patents Grantslast 30 patents

Information Patent Grant
Cleaning chemical for aluminium surface
- Patent number 4,857,225
- Issue date Aug 15, 1989
- Nihon Parkerizing Co., Ltd.
- Haruyoshi Terada
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information Patent Grant
Chromate treatment of a metal coated steel sheet
- Patent number 4,784,731
- Issue date Nov 15, 1988
- Nippon Steel Corporation
- Seijun Higuchi
- C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR