Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700334 | Composition and process for imparting a bright blue color to zinc/aluminum alloy | Hitoshi Ishii | 1997-12-23 |
| 5667843 | Pre-treating zinciferous surfaces before conventional chromating to improve rust resistance | Noriaki Yoshitake, Kensuke Mizuno | 1997-09-16 |