Issued Patents 2022
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11493155 | Threaded connection for pipe and method for producing threaded connection for pipe | Masahiro Oshima | 2022-11-08 |
| 11408550 | Threaded connection for oil country tubular goods and method for producing threaded connection for oil country tubular goods | Masahiro Oshima | 2022-08-09 |
| 11365487 | Electroplating apparatus | Kazuya Ishii, Masahiro Oshima | 2022-06-21 |
| 11293569 | Threaded connection for pipes and method for producing threaded connection for pipes | Masahiro Oshima | 2022-04-05 |