Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4329040 | Signal transmitting device of an intermediate lens barrel of a camera | Sunao Ishizaka | 1982-05-11 |
| 4326788 | Information transmission means in an intermediate lens tube for camera | Sachio Ohmori, Sunao Ishizaka | 1982-04-27 |