Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4887732 | Easy-open lid in which score cut edge can be covered and process for preparation thereof | Hiroshi Matsubayashi, Masanori Aizawa, Takashi Shimizu, Tamotsu Ikegami | 1989-12-19 |
| 4885897 | Method of making hermetically sealed container | Toshio Gryouda, Shouichi Inaba, Kanemichi Yamaguchi | 1989-12-12 |
| 4858782 | Metal vessel having circumferential side seam and process for production thereof | Hisakazu Yasumuro, Kazuo Taira, Tsuneo Imatani, Hideo Kurashima | 1989-08-22 |
| 4800250 | Methods and apparatus for manufacturing tubes | Kazuhisa Ishibashi, Kenji Matsuno, Hideo Kurashima | 1989-01-24 |