Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5256316 | Brightening chemical polishing solution for hardened steel article | Kenichi Suzuki, Masaki Kajino, Kazuyoshi Ogawa, Takashi Asano, Mineo Ogino +3 more | 1993-10-26 |