Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4494929 | Continuous heat treatment furnace | Masato Fujioka, Katsuyoshi Kobayashi, Nobuyoshi Nishihara | 1985-01-22 |
| 4201440 | Lens system for micro film | — | 1980-05-06 |
| 4200352 | Lens system for micro film | — | 1980-04-29 |