Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889996 | Method for obtaining a radiation image | Shusaku Eguchi, Norio Miura | 1989-12-26 |
| 4839243 | Radiographic intensifying screen | Etsuo Shimizu, Shinichi Onogi, Teiichi Hitomi | 1989-06-13 |