Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7238437 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Tatsuya Igarashi, Keizo Kimura | 2007-07-03 |
| 6921591 | Luminescent device material, luminescent device using the same, and amine compound | Terukazu Yanagi | 2005-07-26 |
| 6905786 | Light emitting device material, light emitting device using thereof, and amine compound | — | 2005-06-14 |
| 6890669 | Light emitting element material | — | 2005-05-10 |
| 6881973 | Indole derivative, material for light-emitting device and light-emitting device using the same | — | 2005-04-19 |
| 6821645 | Light-emitting material comprising orthometalated iridium complex, light-emitting device, high efficiency red light-emitting device, and novel iridium complex | Tatsuya Igarashi, Keizo Kimura | 2004-11-23 |
| 6693295 | Indole derivative, material for light-emitting device and light-emitting device using the same | — | 2004-02-17 |
| 6689491 | Luminescent device material, luminescent device using the same, and amine compound | Terukazu Yanagi | 2004-02-10 |
| 6593013 | Electroluminescence device, cyclic azine compound and production process of cyclic azine dye | Tatsuya Igarashi | 2003-07-15 |
| 6555959 | Material for light emitting device, light emitting device using thereof, and amine compound | — | 2003-04-29 |
| 6537687 | Light emitting element material | — | 2003-03-25 |
| 6514633 | Light emitting device material, light emitting device using thereof, and amine compound | — | 2003-02-04 |
| 6379823 | Electroluminescence device, cyclic azine compound and production process of cyclic azine dye | Tatsuya Igarashi | 2002-04-30 |
| 6005111 | Color developing agent, processing composition and color image-forming method | Masato Taniguchi, Kiyoshi Morimoto, Keizo Kimura, Shigeo Hirano | 1999-12-21 |
| 5962200 | Color developing agent, processing composition and color image-forming method | Masato Taniguchi, Kiyoshi Morimoto, Keizo Kimura, Shigeo Hirano | 1999-10-05 |
| 5766822 | Silver halide photographic material | Nobuaki Inoue, Toshihide Ezoe, Takashi Hoshimiya, Kazunobu Katoh, Tetsuo Yamaguchi +1 more | 1998-06-16 |
| 5618652 | Image formation method by silver salt diffusion transfer | Shinji Ueda, Hisashi Okada | 1997-04-08 |
| 5614356 | Color developing agent, processing composition and color image-forming method | Kiyoshi Morimoto | 1997-03-25 |
| 5578433 | Processing composition and processing method for silver halide photographic materials | Shinnichi Morishima | 1996-11-26 |
| 5468592 | Silver halide photographic material | Takashi Hoshimiya, Kazunobu Katoh, Toshihide Ezoe | 1995-11-21 |
| 5447835 | Silver halide photographic material containing hydrazine compounds | Minoru Sakai, Kazunobu Katoh, Hisashi Okamura | 1995-09-05 |
| 5424169 | Silver halide photographic light-sensitive material | Toshihide Ezoe, Kazunobu Katoh, Takashi Hoshimiya, Hisashi Okamura | 1995-06-13 |
| 5340704 | Method for processing a silver halide photographic material | Toshihide Ezoe, Hisashi Okamura | 1994-08-23 |
| 5316890 | Silver halide photographic material | Hisashi Okamura, Kazunobu Katoh | 1994-05-31 |
| 5284732 | Silver halide photographic material | Toshihide Ezoe | 1994-02-08 |