Issued Patents 1997
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693421 | Information recording medium and information recording and reproducing method | Yudai Yamashita | 1997-12-02 |
| 5683838 | Method of producing information recording medium | Masayuki Iijima, Seiji Take, Masato Okabe, Hiroyuki Obata, Minoru Utsumi | 1997-11-04 |
| 5677063 | Information recording medium and information recording and reproducing method | Yudai Yamashita | 1997-10-14 |
| 5678101 | Holder assembly for electro-developing recording media and electro-developing type camera with such holder assembly | Makoto Mogamiya, Masato Okabe, Osamu Shimizu, Yuudai Yamashita | 1997-10-14 |
| 5672453 | Frost image recording medium and method of and apparatus for forming and reading frost image | Hiroyuki Obata, Minoru Utsumi, Masayuki Iijima, Masato Okabe | 1997-09-30 |
| 5660958 | Information recording medium, and information recording and reproducing method | Masayuki Iijima, Seiji Take, Masato Okabe, Hiroyuki Obata, Minoru Utsumi | 1997-08-26 |
| 5646927 | Packaged photographic film with a plurality of liquid crystal recording regions | Osamu Shimizu, Minoru Utsumi, Yuudai Yamashita, Shinichi Sakano, Masato Okabe | 1997-07-08 |