Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683838 | Method of producing information recording medium | Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Minoru Utsumi | 1997-11-04 |
| 5672453 | Frost image recording medium and method of and apparatus for forming and reading frost image | Minoru Utsumi, Masayuki Iijima, Masato Okabe, Hironori Kamiyama | 1997-09-30 |
| 5665497 | Image recording method | Kohji Ichimura | 1997-09-09 |
| 5660958 | Information recording medium, and information recording and reproducing method | Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Minoru Utsumi | 1997-08-26 |
| 5638103 | Method for recording and reproducing information, apparatus therefor and recording medium | Takashi Aono, Hiroshi Mohri, Masato Koike, Hideaki Amano, Norikazu Saito +5 more | 1997-06-10 |