Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4403954 | Apparatus for heat-treating pipes | Hitoshi Kokeguchi, Jiro Yamaguchi, Mikio Umeda, Tadashi Yamashita, Yoshimasa Katsuki +2 more | 1983-09-13 |
| 4340361 | Apparatus for heat-treating cast iron pipes | Yoshio Tanaka, Susumu Togawa | 1982-07-20 |