Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4352981 | Photoelectric focus and tracking apparatus | Takeshi Maeda | 1982-10-05 |
| 4333173 | Optical information processor with prismatic correction of laser beam shape | Seiji Yonezawa, Masahiro Ojima | 1982-06-01 |