Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4692197 | Method for manufacturing corrugated tubes | Noboru Hasegawa, Akio Machihara, Masaharu Kusaka, Kohei Orii, Yoshiro Noguchi | 1987-09-08 |
| 4575400 | Apparatus for manufacturing corrugated tubes | Noboru Hasegawa, Akio Machihara, Masaharu Kusaka, Kohei Orii, Yoshiro Noguchi | 1986-03-11 |