Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9709196 | Threaded joint for heavy-walled oil country tubular goods | Takamasa Kawai, Kazunari Takahashi, Hiroshi Chikatsune, Jun Takano, Takuya Nagahama +4 more | 2017-07-18 |
| 9657873 | Threaded joint for pipes | Takamasa Kawai, Kazunari Takahashi, Hiroshi Chikatsune, Jun Takano, Takuya Nagahama +2 more | 2017-05-23 |
| 9644547 | Engine control device for work vehicle | Koji Hyodo, Isamu Aoki, Tetsuji Tanaka | 2017-05-09 |