Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8683843 | Spinning method for forming pipe end | Akihiro Ando, Kazushi Sakamoto, Kenji Hara | 2014-04-01 |
| 8635898 | Spinning method for forming a diameter reduced portion | Akihiro Ando, Jun Kurobe | 2014-01-28 |