Issued Patents All Time
Showing 26–34 of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4600676 | Toner composition containing titanate coupling agent for electrophotography and method for producing said toner | Sadatugu Terada, Kiyoshi Tamaki, Akitoshi Matsubara, Tsuneo Wada, Hiroyuki Takagiwa | 1986-07-15 |
| 4546044 | Magnetic recording medium | Masao Asano, Tetsuro Sunaga, Kazumasa Matsumoto | 1985-10-08 |
| 4537824 | Magnetic recording medium | Masao Asano, Wataru Fujimatsu, Kazumasa Matsumoto, Toshihiko Sato, Kenji Watanabe | 1985-08-27 |
| 4507378 | Method for the production of toner for electrophotography and the toner produced thereby | Tsuneo Wada, Kiyoshi Tamaki, Sadatugu Terada, Hiroyuki Takagiwa | 1985-03-26 |
| 4495345 | Optical element and optical polycarbonate resin composition for the preparation thereof | Sota Kawakami, Satoshi Matsunaga, Toshihiko Kiriki | 1985-01-22 |
| 4486559 | Toner composition for the development of electrostatic latent images and a method of preparing the same | Sadatugu Terada, Kiyoshi Tamaki, Tsuneo Wada, Akitoshi Matsubara, Hiroyuki Takagiwa | 1984-12-04 |
| 4448871 | Toner for developing an electrostatically charged image and manufacturing method thereof | Kiyoshi Tamaki, Sadatugu Terada, Tsuneo Wada, Akitoshi Matsubara, Hiroyuki Takagiwa | 1984-05-15 |
| 4415644 | Electrostatic image developing toner and a method for the production thereof | Kiyoshi Tamaki, Sadatugu Terada, Tsuneo Wada, Akitoshi Matsubara, Hiroyuki Takagiwa | 1983-11-15 |
| 4243601 | Cyano substituted diphenoquinones and a process for preparing them | Zen-ichi Yoshida, Shigeo Yoneda, Yutaka Yasuda, Saburo Nagakura | 1981-01-06 |