Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870447 | Copying apparatus | Nobutoshi Yoshida, Atsushi Takagi, Takashi Saito, Tadashi Suzuki, Naoyuki Ohki +3 more | 1989-09-26 |
| 4798457 | Self-conscious type eye examining apparatus | Kazuo Morohashi, Tsunemi Gonda | 1989-01-17 |