Issued Patents 1994
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, 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 | Mansuke Matsumoto, 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, Mansuke Matsumoto, Sayuri Wada, Shuuichi Hashimoto | 1994-08-16 |
| 5298954 | Image forming apparatus | Ryuji Wataki | 1994-03-29 |
| 5296718 | Light emitting semiconductor device having multilayer structure | Shizuo Fujita | 1994-03-22 |
| 5294818 | MISFET including GaAs substrate and a Group II-VI gate insulator | Shizuo Fujita, Susumu Fukuda | 1994-03-15 |
| 5283513 | Battery charging device for electric vehicles | Hideki Toyota, Takahiro Iwata | 1994-02-01 |