Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4623604 | Triboelectric stabilized toner for developing electrically charged images and a method for the production thereof | Hiroyuki Takagiwa, Kenzi Thuzita, Goichi Yamakawa, Makoto Tomono, Saburo Wakimoto +3 more | 1986-11-18 |
| 4600676 | Toner composition containing titanate coupling agent for electrophotography and method for producing said toner | Sadatugu Terada, Kiyoshi Tamaki, Hideki Murata, Akitoshi Matsubara, Hiroyuki Takagiwa | 1986-07-15 |
| 4585723 | Developer for electrostatic latent image and method of forming image | Ken-ichi Kishi, Keiji Sato, Takahira Kasuya, Kunio Ito | 1986-04-29 |
| 4572885 | Developer composition for developing an electrostatic image | Keiji Sato, Takahira Kasuya, Goichi Yamakawa | 1986-02-25 |
| 4507378 | Method for the production of toner for electrophotography and the toner produced thereby | Kiyoshi Tamaki, Hideki Murata, Sadatugu Terada, Hiroyuki Takagiwa | 1985-03-26 |
| 4486559 | Toner composition for the development of electrostatic latent images and a method of preparing the same | Hideki Murata, Sadatugu Terada, Kiyoshi Tamaki, Akitoshi Matsubara, Hiroyuki Takagiwa | 1984-12-04 |
| 4448871 | Toner for developing an electrostatically charged image and manufacturing method thereof | Kiyoshi Tamaki, Hideki Murata, Sadatugu Terada, Akitoshi Matsubara, Hiroyuki Takagiwa | 1984-05-15 |
| 4424266 | Layered electrophotographic photosensitive element having hydrazone charge transport material | Seiji Kurihara, Satoshi Goto, Akira Kinoshita, Yoshiaki Takei, Naoko Akashi +1 more | 1984-01-03 |
| 4415644 | Electrostatic image developing toner and a method for the production thereof | Kiyoshi Tamaki, Hideki Murata, Sadatugu Terada, Akitoshi Matsubara, Hiroyuki Takagiwa | 1983-11-15 |
| 4410615 | Layered electrophotographic photosensitive element having hydrazone charge transport layer | Satoshi Goto, Akira Kinoshita, Yoshiaki Takei, Naoko Akashi, Hiroyuki Nomori | 1983-10-18 |
| 4368258 | Process for preparing impregnated polymer latex compositions | Mitsuto Fujiwhara, Syunji Matsuo, Naoto Abe, Toyoaki Masukawa, Akio Iijima +1 more | 1983-01-11 |
| 4358533 | Silver halide photographic material | Kouji Tokitou | 1982-11-09 |
| 4264721 | Color photographic materials | Shinji Shimano, Katsuo Mogaki, Shinichi Nakamura, Kouji Tokitou | 1981-04-28 |