Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883937 | Butt welding method by means of laser beam | Tsuneo Imatani, Nobuyuki Sato, Osamu Teruuchi, Hideo Kurashima | 1989-11-28 |
| 4840304 | Butt-welded cans and process for manufacturing the same | Nobuyuki Sato, Hiroshi Matsubayashi, Seishichi Kobayashi, Minoru Mitsuhashi, Kazuhisa Ishibashi | 1989-06-20 |
| 4805795 | Butt-welded cans and process for manufacturing the same | Nobuyuki Sato, Hiroshi Matsubayashi, Seishichi Kobayashi, Minoru Mitsuhashi, Kazuhisa Ishibashi | 1989-02-21 |
| 4800250 | Methods and apparatus for manufacturing tubes | Michio Watanabe, Kazuhisa Ishibashi, Hideo Kurashima | 1989-01-24 |