Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11053749 | Threaded joint for oil well steel pipe | Takamasa Kawai, Taro Kanayama, Masaki Yoshikawa, Jun Takano | 2021-07-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11053749 | Threaded joint for oil well steel pipe | Takamasa Kawai, Taro Kanayama, Masaki Yoshikawa, Jun Takano | 2021-07-06 |