Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8360690 | Method of regulating air-foam stabilizer and method of air-foam drilling work | Hirokazu Akagi, Yoshimasa Kondo | 2013-01-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8360690 | Method of regulating air-foam stabilizer and method of air-foam drilling work | Hirokazu Akagi, Yoshimasa Kondo | 2013-01-29 |