Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877713 | Preformatted optical recording card and method of producing the same | Yoichi Fukushima | 1989-10-31 |
| 4860275 | Optical recording card and method of reading the same | Yuji Kakinuma | 1989-08-22 |
| 4851948 | Disk cartridge with shutter biasing device | Yoshitake Kato | 1989-07-25 |
| 4805572 | Control device for vehicle | Hirotaka Shibata | 1989-02-21 |