Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009843 | Spring steel having good durability and sag-resistance | Atsushi Sugimoto, Osamu Nakano, Shigeru Yasuda, Chikatoshi Maeda, Toshio Ozone | 1991-04-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5009843 | Spring steel having good durability and sag-resistance | Atsushi Sugimoto, Osamu Nakano, Shigeru Yasuda, Chikatoshi Maeda, Toshio Ozone | 1991-04-23 |