Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4721577 | Stabilized fracturing fluid and method of stabilizing fracturing fluid | Shoichi Kanda, Yukihiko Sekimoto | 1988-01-26 |
| 4691013 | Process for production of modified hydroxyethyl cellulose | Yukihiko Sekimoto, Shoichi Kanda | 1987-09-01 |
| 4681690 | Stabilized fracturing fluid and method of stabilizing fracturing fluid | Shoichi Kanda, Yukihiko Sekimoto | 1987-07-21 |
| 4661266 | Completion and workover fluids | Shoichi Kanda, Yukihiko Sekimoto | 1987-04-28 |