Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11331702 | Colored stainless steel plate and colored stainless steel coil | Kosuke Iai, Yoshikazu Aoki | 2022-05-17 |
| 10801124 | Stainless steel plate | Kosuke Iai, Yoshikazu Aoki | 2020-10-13 |
| 4915799 | Electrolytic coloring method for chromium alloy | Katsuaki Shimouchi, Yoshikazu Aoki | 1990-04-10 |