Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879788 | Drawing machine | Tatsushi Seko, Kuniharu Tobita, Saburo Matsubayashi, Nobuhiko Kougo, Kiyoshi Ogawa +4 more | 1989-11-14 |
| 4834222 | Hydraulic damper | Tetuo Kato, Seiji Toda | 1989-05-30 |