Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4691499 | Method of tensioning a web of packaging material | Yoshiaki Umeda, Ryouhei Matsumoto, Hiroyasu Isomura | 1987-09-08 |
| 4576588 | Adjustable tube forming apparatus | Yoshiaki Umeda, Ryouhei Matsumoto, Hiroyasu Isomura | 1986-03-18 |