Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4855191 | Radiation image converting material | Satoshi Arakawa, Kikuo Yamazaki, Kenji Ohmiya, Jun Kawagoe | 1989-08-08 |
| 4835396 | Radiographic intensifying screen and radiation image producing method | Nobuyuki Iwasaki | 1989-05-30 |