Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4770257 | Method of preventing loss of drilling mud during boring a hole in the ground | Motoki KONDO, Hirosuke Kubota, Mamoru Shinozaki, Toshiyuki Oshita, Tomohiro Teramura +1 more | 1988-09-13 |
| 4721159 | Method and device for conveying chemicals through borehole | Katsutoshi Ohkochi, Mamoru Shinozaki, Toshiyuki Ohshita, Seizo Kamata | 1988-01-26 |
| 4706753 | Method and device for conveying chemicals through borehole | Katsutoshi Ohkochi, Mamoru Shinozaki, Toshiyuki Ohshita, Seizo Kamata | 1987-11-17 |