Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659511 | Flexible fluid-transport pipe joint apparatus | Akihito Totsugi | 2003-12-09 |
| 6019396 | Pipe connecting apparatus | Kikuo Saito, Yasushi Shimonaka, Akihito Totsugi | 2000-02-01 |