Issued Patents All Time
Showing 26–27 of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5092920 | Sintered body for high-accuracy working tools | Tetsuo Nakai, Mitsuhiro Goto | 1992-03-03 |
| 5041399 | Hard sintered body for tools | Tetsuo Nakai, Mitsuhiro Goto | 1991-08-20 |