Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5509761 | Drill | Gunter Grossman | 1996-04-23 |
| 4859123 | Insert boring tool | Yuzo Koesashi, Yasuhiko Kawade | 1989-08-22 |
| 4820905 | Carbonizing furnace | Makoto Sugiyama, Motohisa Miyauchi | 1989-04-11 |