Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5673579 | Welded steel pipe manufacturing apparatus and method | Yuuji Hashimoto, Takaaki Toyooka, Motoaki Itadani, Susumu Itadani | 1997-10-07 |
| 5599264 | Roller width adjusting device for a divided type molding roller | Yuji Hashimoto, Takaaki Toyooka, Susumu Itatani | 1997-02-04 |