Issued Patents 1997
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683838 | Method of producing information recording medium | Masayuki Iijima, Seiji Take, Hironori Kamiyama, Hiroyuki Obata, Minoru Utsumi | 1997-11-04 |
| 5678101 | Holder assembly for electro-developing recording media and electro-developing type camera with such holder assembly | Makoto Mogamiya, Hironori Kamiyama, 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, Hironori Kamiyama | 1997-09-30 |
| 5660958 | Information recording medium, and information recording and reproducing method | Masayuki Iijima, Seiji Take, Hironori Kamiyama, Hiroyuki Obata, Minoru Utsumi | 1997-08-26 |
| 5658699 | Information recording medium and method of recording and reproducing electrostatic information | Masayuki Iijima | 1997-08-19 |
| 5646927 | Packaged photographic film with a plurality of liquid crystal recording regions | Osamu Shimizu, Minoru Utsumi, Yuudai Yamashita, Hironori Kamiyama, Shinichi Sakano | 1997-07-08 |