Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8007716 | Steel wire for high strength spring excellent in workability and high strength | Sumie Suda, Nobuhiko Ibaraki, Noritoshi Takamura, Naoki Terakado, Tadayoshi Fujiwara +1 more | 2011-08-30 |
| 7766312 | Coil spring | Noritoshi Takamura | 2010-08-03 |