Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4864495 | Apparatus for controlling vacant areas in buffer memory in a pocket transmission system | — | 1989-09-05 |
| 4860792 | Electromagnetic control valve | Kouji Ichihashi | 1989-08-29 |
| 4859364 | Conductive paste composition | Yasuo Yamamoto, Takashi Kitagaki | 1989-08-22 |