Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6406821 | Method for preparing silver halide emulsions and apparatus for implementing the method | Yasunori Ichikawa, Hideharu Nagasawa | 2002-06-18 |
| 4185331 | Protective head device | — | 1980-01-29 |