Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7219988 | Water-soluble phthalocyanine compound-containing ink for ink jetting, ink jet recording method and method for improving ozone gas discoloration of colored image material | Keiichi Tateishi, Shigeaki Tanaka | 2007-05-22 |
| 7109336 | Azo compound and process of producing the same, and novel compound and process of producing azo compounds using the same | Toshiki Fujiwara, Shigeaki Tanaka, Tadashi Omatsu, Yoshiharu Yabuki | 2006-09-19 |
| 7108743 | Coloring composition for image formation and method for improving ozone resistance of color image | Toshiki Fujiwara, Shigeaki Tanaka, Tadashi Omatsu, Yoshiharu Yabuki | 2006-09-19 |
| 6582895 | Silver halide photographic emulsion comprising methine compound and silver halide photographic material | Takanori Hioki, Kiyoshi Morimoto | 2003-06-24 |
| 5965346 | Photothermographic material | Yoshio Inagaki, Hirohiko Tsuzuki | 1999-10-12 |