Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5990353 | Process for producing arylsulfonylureide compounds | Nobuaki Sasaki, Bunji Sawano, Toshihiko Kawabata | 1999-11-23 |
| 5973168 | Preparation process of phthalide compound | Takeshi Nishimura, Masaru Wada, Yoshinobu Kanemura, Satoshi Nakao | 1999-10-26 |
| 5710335 | Process for preparing 3-(N,N-disubstituted amino)phenol | Kenichiro Horiuchi, Bunji Sawano, Nobuaki Sasaki | 1998-01-20 |
| 5691272 | Carboxylate and heat-sensitive recording material using same | Nobuaki Sasaki, Bunji Sawano, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1997-11-25 |
| 5559247 | Carboxylate and heat-sensitive recording material using same | Nobuaki Sasaki, Bunji Sawano, Kiyoharu Hasegawa, Kazuyoshi Kikkawa | 1996-09-24 |
| 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, Yojiro Kumagae, 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 | Yojiro Kumagae, Shigeo Fujita, 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, Yojiro Kumagae, 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 | Yojiro Kumagae, Shigeo Fujita, Sayuri Wada, Shuuichi Hashimoto | 1994-08-16 |
| 5334714 | Method for preparing alkoxyphthalocyanine | Takahisa Oguchi, Kenichi Sugimoto, Shin Aihara, Hisato Itoh, Toshihiro Masaoka +1 more | 1994-08-02 |
| 5220010 | Method for preparation alkoxyphthalocyanine | Takahisa Oguchi, Kenichi Sugimoto, Shin Athara, Hisato Itoh, Toshihiro Masaoka +1 more | 1993-06-15 |
| 4316026 | Process for the preparation of copper quinolinate | Yoshihiro Hatano, Seishi Ikegami, Kenji Itoh | 1982-02-16 |