Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11015061 | Phthalocyanine-based compound and uses of same | Akihiro Kohsaka, Hiroyuki Sasaki | 2021-05-25 |
| 7332261 | Phthalocyanine compound, process for preparing the same, and optical recording medium containing the same | Kazuhiro Seino, Shinichi Nakagawa, Tsutami Misawa, Satoshi Kinoshita, Akihiro Kosaka +1 more | 2008-02-19 |
| 6821696 | Toner for optical fixing, manufacturing method therefor and image formation apparatus using it | Yoshimichi Katagiri, Yasushige Nakamura, Shinichi Yaoi, Tomoaki Tanaka, Seijiro Ishimaru +4 more | 2004-11-23 |
| 6468713 | Phthalocyanine compounds, process for producing the same, and near infrared absorbent comprising the same | Hiroshi Terao, Shigeo Fujita | 2002-10-22 |
| 6355327 | Optical recording medium and dipyrromethene metal chelate compound for use therein | Tsutami Misawa, Taizo Nishimoto, Hisashi Tsukahara, Akira Ogiso, Kenichi Sugimoto +4 more | 2002-03-12 |
| 6162520 | Optical recording medium and dipyrromethene metal chelate compound for use therein | Tsutami Misawa, Taizo Nishimoto, Hisashi Tsukahara, Akira Ogiso, Kenichi Sugimoto +4 more | 2000-12-19 |
| 6093832 | Diiminoisoindoline compound and the process for producing the compound and use thereof | Toshihiro Masaoka, Shigeo Fujita, Tsunehito Eda | 2000-07-25 |
| 6066729 | Photothermal conversion material | Shigeo Fujita, Jun Taniguchi, Hiroshi Terao | 2000-05-23 |
| 5973140 | Phthalocyanine compound, its intermediate, process for producing the compound, and use thereof | Toshihiro Masaoka, Shigeo Fujita, Tsunehito Eda | 1999-10-26 |
| 5804102 | Plasma display filter | Ryu Oi, Kazuhiro Seino, Yoriaki Matsuzaki, Yuko Mochizuki, Keisuke Takuma +1 more | 1998-09-08 |
| 5627287 | Phthalide compound and a near infrared absorber and a recording material each comprising the same compound | Hiroyuki Sasaki, Shinzo Nawamoto, Jun Taniguchi, Toshihiro Masaoka, Bunji Sawano +1 more | 1997-05-06 |
| 5438032 | Crystal modifications of 2-m-toluidino-3-methyl-6-di-n-butylaminofluoran, process for preparing thereof, and recording materials containing said crystal modifications | Shigeo Fujita, Mansuke Matsumoto, Sayuri Wada, Shuichi Hashimoto | 1995-08-01 |
| 5376617 | Crystal modification of 2-(3-methylanilion)-3-methyl-6-diethylamino-fluoran, process for the preparation thereof, and recording materials containing said crystal modification | Shigeo Fujita, Mansuke Matsumoto, Sayuri Wada, Shuuichi Hashimoto | 1994-12-27 |
| 5342967 | Crystal modifications of 2-M-toluidino-3-methyl-6-di-N-butylaminofluoran, process for preparing thereof, and recording materials containing said crystal modifications | Shigeo Fujita, Mansuke Matsumoto, Sayuri Wada, Shuichi Hashimoto | 1994-08-30 |
| 5338866 | Crystal modification of 2-(3-methylanilino)-3-methyl-6-diethylaminofluoran, process for the preparation thereof, and recording materials containing said crystal modification | Shigeo Fujita, Mansuke Matsumoto, Sayuri Wada, Shuuichi Hashimoto | 1994-08-16 |
| 4523018 | Certain bis(benzoyl)pyridine compounds | Yasuhisa Iwasaki | 1985-06-11 |