Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7709660 | Polymethine ether compounds | Nobuaki Sasaki, Keiki Chichiishi, Shigeo Fujita | 2010-05-04 |
| 7485404 | Nonsolvate-form crystal of polymethine compound and process for producing the same | Keiki Chichiishi, Shigeo Fujita | 2009-02-03 |
| 7446212 | Polymethine ethers | Nobuaki Sasaki, Keiki Chichiishi, Shigeo Fujita | 2008-11-04 |
| 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, Yojiro Kumagae, 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 | Yojiro Kumagae, Shigeo Fujita, Mansuke Matsumoto, 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, Yojiro Kumagae, 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 | Yojiro Kumagae, Shigeo Fujita, Mansuke Matsumoto, Shuuichi Hashimoto | 1994-08-16 |