Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7726692 | Steering handle and steering system | Takafumi Ozaki, Kazuhiko Satou, Tatsuya Amano, Hisao Asaumi, Masaaki Kawano +5 more | 2010-06-01 |
| 4700783 | Method and apparatus for recovering liquids from a well bore | — | 1987-10-20 |