Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7919554 | Heat-resistant seal material, endless seal member using heat-resistant seal material, and downhole apparatus including endless seal member | Toru Noguchi, Hiroyuki Ueki, Akira Magario, Shigeki Inukai, Masaei Ito +2 more | 2011-04-05 |