Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4657076 | Chemical injection tube mounting structure for geothermal well | Jiro Tsutsumi, Minolu Uchiyama, Haruo Yamada | 1987-04-14 |
| 4625797 | Chemical injection tube mounting structure for a geothermal well | Jiro Tsutsumi, Minolu Uchiyama | 1986-12-02 |
| 4595059 | Method of providing a conductor pipe to an opening portion of a well | Joji Arimura, Kazuo Kondo, Taisuke Fujise | 1986-06-17 |