Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5797465 | Multi-shaft drilling unit | Mitsuhiro Shibasaki, Hiroaki Kubo, Akira Mori, Hachiro Hatakeda, Tsutao Takahashi | 1998-08-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5797465 | Multi-shaft drilling unit | Mitsuhiro Shibasaki, Hiroaki Kubo, Akira Mori, Hachiro Hatakeda, Tsutao Takahashi | 1998-08-25 |