Yohei Otsu

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Tokyo, JP

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Patents Applicationslast 30 patents

Information Patent Application
Surface Treatment Agent for Aluminum-Containing Metal Materials
- Publication number 20240052192
- Publication date Feb 15, 2024
- Nihon Parkerizing Co., Ltd.
- Yohei Otsu
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
Metal Surface-Treating Agent, and Metal Material With Coating Film...
- Publication number 20220389237
- Publication date Dec 8, 2022
- Nihon Parkerizing Co., Ltd.
- Masaru Tokue
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...