Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6711927 | Bending apparatus for a long material | Tsutomu Furuyama, Yoshihiro Koshita, Osamu Shinkai | 2004-03-30 |
| 4290288 | Device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring | Yoshihiro Sakai, Akira Ohno | 1981-09-22 |