Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668363 | Optical reading apparatus for reading latent image mark | Masato Nishida, Tomoaki Ishituka | 1997-09-16 |
| 5611958 | Infrared phosphor and material having latent images and optical reading system using said phosphor | Yoji Takeuchi, Ryuzo Fukao, Hisao Kanzaki | 1997-03-18 |
| 5608225 | Fluorescent detecting apparatus and method | Kunio Kamimura, Kunitoshi Ohashi | 1997-03-04 |