Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7076157 | Magnetic recording and reproducing apparatus | — | 2006-07-11 |
| 4400949 | Frost detector for refrigerating apparatus | Yoshio Sasaki | 1983-08-30 |
| 4370558 | Film blackening area measuring equipment | Masaji Mizuta | 1983-01-25 |
| 4293226 | Photographic film blackening area measuring device | Kiyoshi Sugou, Yukio Onoda | 1981-10-06 |