Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9469895 | Spring steel and surface treatment method for steel material | Takeshi Suzuki, Yoshiki Ono | 2016-10-18 |
| 9341223 | Spring and manufacture method thereof | Takeshi Suzuki, Yoshiki Ono | 2016-05-17 |