Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7253332 | Method for treating cyanide waste liquid | Ryuji Kojima, Humihide Nakamura, Yoshiyasu Yoneyama, Toshiko Totsuka | 2007-08-07 |
| 7217327 | Method of producing metal member with enhanced corrosion resistance by salt bath nitriding | Hiroshi Eiraku, Yutaka Sawano, Tetsuya Yamamura, Fumihide Nakamura, Motohiro Tenmaya | 2007-05-15 |
| 4341558 | Metal surface coating agent | Yoshio Moriya | 1982-07-27 |
| 4187127 | Surface processing solution and surface treatment of aluminum or aluminum alloy substrate | Yukihiko Ayano, Yasushi Miyazaki | 1980-02-05 |