Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4784731 | Chromate treatment of a metal coated steel sheet | Seijun Higuchi, Akinori Maruta, Kenichi Asakawa, Haruyoshi Terada, Youji Ono | 1988-11-15 |
| 4756805 | Treatment of galvanized steel | Haruyoshi Terada, Yohji Oho | 1988-07-12 |
| 4637840 | Coated aluminum-zinc alloy plated sheet steel | Haruki Fujii, Shoji Ikada, Yasuo Okumura | 1987-01-20 |