Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886429 | Electromagnetic pump | Masaaki Tanabe | 1989-12-12 |
| 4833562 | Rotary magnetic head cylinder device for suppressing vibrations ofa magnetic tape | Masanori Kochi, Juichi Morikawa, Makoto Ibe, Hitoshi Takizawa, Hideyuki Kawase +4 more | 1989-05-23 |