Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5071294 | Burnishing drill | Yasuhiro Suzuki, Kazuhiro Shibata, Akio Fukui, Kiyotaka Shiga | 1991-12-10 |
| 4944640 | Vertical feed type burnishing drill | Yasuhiro Suzuki, Kazuhiro Shibata, Akio Fukui, Kiyotaka Shiga | 1990-07-31 |