Issued Patents 1997
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683838 | Method of producing information recording medium | Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata | 1997-11-04 |
| 5672453 | Frost image recording medium and method of and apparatus for forming and reading frost image | Hiroyuki Obata, Masayuki Iijima, Masato Okabe, Hironori Kamiyama | 1997-09-30 |
| 5660958 | Information recording medium, and information recording and reproducing method | Masayuki Iijima, Seiji Take, Hironori Kamiyama, Masato Okabe, Hiroyuki Obata | 1997-08-26 |
| 5650247 | Preparation and reproduction of filters and preparation of filter photographic materials | Yukio Taniguchi | 1997-07-22 |
| 5646927 | Packaged photographic film with a plurality of liquid crystal recording regions | Osamu Shimizu, Yuudai Yamashita, Hironori Kamiyama, Shinichi Sakano, Masato Okabe | 1997-07-08 |
| 5638103 | Method for recording and reproducing information, apparatus therefor and recording medium | Hiroyuki Obata, Takashi Aono, Hiroshi Mohri, Masato Koike, Hideaki Amano +5 more | 1997-06-10 |
| 5635317 | Preparation and reproduction of filters and preparation of filter photographic materials | Yukio Taniguchi | 1997-06-03 |
| 5629920 | Photoelectric sensor, information recording system, and information recording method | Shinichi Sakano, Daigo Aoki, Masanori Akada, Osamu Shimizu | 1997-05-13 |