Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883937 | Butt welding method by means of laser beam | Kenji Matsuno, Nobuyuki Sato, Osamu Teruuchi, Hideo Kurashima | 1989-11-28 |
| 4858782 | Metal vessel having circumferential side seam and process for production thereof | Hisakazu Yasumuro, Michio Watanabe, Kazuo Taira, Hideo Kurashima | 1989-08-22 |