Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7253332 | Method for treating cyanide waste liquid | Ryuji Kojima, Yoshiyasu Yoneyama, Kuniji Yashiro, Toshiko Totsuka | 2007-08-07 |
| 7238244 | Nitriding of iron and steel parts in salt bath having improved corrosion resistance | Tokuo Sato, Yutaka Sawano, Tetsuya Yamamura, Kazuyoshi Kurosawa, Motohiro Tenmaya | 2007-07-03 |