Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4823446 | Fluid-tight slide fastener stringer | Noritaka Tsubata, Koichi Tanikawa | 1989-04-25 |
| 4823577 | Method of feeding material to hot forging machine | Yoshio Kawashima, Shunji Ogata, Masaaki Yokoyama, Masato Tomiku, Tsuneo Yamada +5 more | 1989-04-25 |