Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834523 | Method for producing seamless tube with grooved inner surface | Nobuaki Hinago, Chikara Saeki, Kiyonori Ozeki | 2004-12-28 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834523 | Method for producing seamless tube with grooved inner surface | Nobuaki Hinago, Chikara Saeki, Kiyonori Ozeki | 2004-12-28 |