Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139099 | Excavation tool | Takeshi Hayashi, Shigeru Sato, Katsuaki Tsujimoto, Daishiro Miyazaki, Yoneo Hiwasa +1 more | 1992-08-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5139099 | Excavation tool | Takeshi Hayashi, Shigeru Sato, Katsuaki Tsujimoto, Daishiro Miyazaki, Yoneo Hiwasa +1 more | 1992-08-18 |