Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10138559 | Chemical conversion agent and metal surface treatment method | Norizumi Matsui | 2018-11-27 |
| 9896766 | Surface processing method for aluminum heat exchanger | Norizumi Matsui, Yuko Wada | 2018-02-20 |
| 9879345 | Chemical conversion agent and chemical conversion coating film | Norizumi Matsui, Yuko Wada, Junsuke Hokka | 2018-01-30 |