Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888521 | Photoconductive device and method of operating the same | Kenkichi Tanioka, Keiichi Shidara, Tatsuro Kawamura, Junichi Yamazaki, Eikyuu Hiruma +16 more | 1989-12-19 |
| 4887170 | Magnetic recording/reproducing apparatus for magnetically reproducing signals from one tape and recording the signals onto a second tape | Masami Tsuchida, Kiichiro Koguchi, Tokihiro Takahashi, Takayuki Sato | 1989-12-12 |
| 4817075 | Program selection for a digital audio disk | Takashi Kikuchi, Naomi Amemiya, Masami Tsuchida, Masashi Tanabe | 1989-03-28 |