Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6358624 | Polycrystal diamond tool | Junichi Shiraishi, Tetsuo Nakai | 2002-03-19 |
| 6342301 | Diamond sintered compact and a process for the production of the same | Michinari Asano, Junichi Shiraishi, Tetsuo Nakai | 2002-01-29 |