Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4610924 | Support of photographic paper | Shigehisa Tamagawa, Kazuyuki Koike | 1986-09-09 |
| 4610956 | Process for producing support for photographic paper and the support produced by the process | Yasuzi Asao, Takashi Takayanagi | 1986-09-09 |
| 4599288 | Electrophotographic plate-making material | — | 1986-07-08 |
| 4567497 | Heat-sensitive recording paper | Shigehisa Tamagawa | 1986-01-28 |
| 4555461 | Process for preparing a lithographic printing plate | Keisuke Shiba, Sho Nakao, Chikashi Ohishi | 1985-11-26 |
| 4508751 | Process for the preparation of highly sized paper | Shigehisa Tamagawa | 1985-04-02 |
| 4508804 | Support for electrographic plate-making material and a lithographic printing plate employing same | Yasuzi Asao | 1985-04-02 |
| 4439496 | Water-proof photographic support | Shigehisa Tamagawa, Minoru Ono | 1984-03-27 |
| 4433030 | Photographic support | Shigehisa Tamagawa | 1984-02-21 |