Issued Patents All Time
Showing 26–41 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7645496 | 1,3,5-triazine compound, composition, and optically anisotropic material composed of the same | Hiroshi Takeuchi | 2010-01-12 |
| 7575696 | Liquid crystal composition and anisotropic material | Aiko Yoshida, Hiroshi Takeuchi | 2009-08-18 |
| 7431971 | Retardation plate | Hideyuki Nishikawa | 2008-10-07 |
| 7365199 | Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound | Kiyoshi Takeuchi | 2008-04-29 |
| 7314654 | Optically anisotropic element comprising discotic compound | Michitaka Matsuumi, Atsuhiro Ohkawa | 2008-01-01 |
| 7273641 | Optically anisotropic element comprising discotic compound | Michitaka Matsuumi, Atsuhiro Ohkawa | 2007-09-25 |
| 7201950 | Optical compensatory sheet, elliptical polarizing plates and liquid-crystal display | Shinichi Morishima, Minoru Uchida | 2007-04-10 |
| 7196194 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima +6 more | 2007-03-27 |
| 7193080 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Mario Aoki | 2007-03-20 |
| 7125988 | Dye-forming coupler and silver halide color photographic light-sensitive material | Kiyoshi Takeuchi, Nobuo Seto, Hiroyuki Yoneyama, Satoshi Sano, Yasuhiro Shimada | 2006-10-24 |
| 7009048 | Dye-forming coupler, silver halide photographic light-sensitive material, and method for producing an azomethine dye | Jun Ogasawara, Kiyoshi Takeuchi, Yasuhiro Shimada, Yasuaki Deguchi | 2006-03-07 |
| 6803181 | Dye-forming coupler, silver halide photographic light-sensitive material, and method for producing an azomethine dye | Jun Ogasawara, Kiyoshi Takeuchi, Yasuhiro Shimada, Yasuaki Deguchi | 2004-10-12 |
| 6727053 | Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound | Kiyoshi Takeuchi, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima +6 more | 2004-04-27 |
| 6677110 | Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound | Kiyoshi Takeuchi, Mario Aoki | 2004-01-13 |
| 6660465 | Yellow coupler and silver halide color photographic lightsensitive material containing the same | Kiyoshi Takeuchi | 2003-12-09 |
| 6620933 | Azomethine yellow dye compound | Kiyoshi Takeuchi | 2003-09-16 |