Issued Patents 2018
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10072476 | Poly-L-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the same | Takeo Takahashi, Hiroyuki Sato | 2018-09-11 |
| 10030464 | Member for hydrocarbon resource collection downhole tool | Hikaru Saijo, Katsumi Yoshida, Hiroyuki Sato | 2018-07-24 |
| 10030465 | Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing same | Takeo Takahashi, Hiroyuki Sato | 2018-07-24 |
| 9926764 | Molded product having effective thickness of 1 mm or more and containing aliphatic polyester resin, and downhole tool member for hydrocarbon resource recovery | Takuma Kobayashi, Hikaru Saijo, Takeo Takahashi | 2018-03-27 |
| 9914871 | Ball sealer for hydrocarbon resource recovery, method for manufacturing same, and method for treating borehole using same | Takeo Takahashi | 2018-03-13 |
| 9879500 | Well treatment method by disintegrating elastic material by contacting seal member for downhole tools comprising elastic material with well treatment fluid | Takeo Takahashi, Takuma Kobayashi | 2018-01-30 |