Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9714551 | Plug for well drilling process provided with mandrel formed from degradable material | Masayuki Okura | 2017-07-25 |
| 9534163 | Polyglycolic acid resin short fibers for use in well treatment fluid | Shunsuke Abe, Masahiro Yamazaki, Hiroyuki Sato, Kenichi Suzuki | 2017-01-03 |