Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5486898 | Color image forming apparatus with photoreceptor protector | Yozo Fujii, Hiroyuki Moriguchi, Yoshikazu Ikunami, Masahiko Matsunawa, Akihiko Tamura +6 more | 1996-01-23 |
| 5445910 | Developer for developing electrostatic image comprising a toner containing colorant particles having organic particles externally added thereto | Michiaki Ishikawa, Keiko Ogawa, Meizo Shirose | 1995-08-29 |
| 5441839 | Negatively chargeable developer with carrier containing magnesium oxide | Michiaki Ishikawa, Keiko Ogawa, Meizo Shirose | 1995-08-15 |
| 5272038 | Electrostatic image developing resin-coated carrier and method for producing the same | Akitoshi Matsubara, Meizo Shirose, Michiaki Ishikawa, Yoshiki Nishimori | 1993-12-21 |
| 5225304 | Positive-electrification toner | Hirotaka Kabashima, Kunio Akimoto, Tatsuya Nagase | 1993-07-06 |
| 5116713 | Toner for developing latent electrostatic image | Masafumi Uchida, Toshiko Yajima, Jiro Takahashi | 1992-05-26 |
| 5104762 | Developer for electrophotography | Meizo Shirose, Michiaki Ishikawa, Yoshiki Nishimori | 1992-04-14 |
| 5093220 | Electrostatic latent image developer | Hiroya Masaki, Meizo Shirose, Michiaki Ishikawa | 1992-03-03 |
| 5047305 | Electrostatic-image developing polyester toner with release agent | Masafumi Uchida, Jiro Takahashi, Akitoshi Matsubara, Toshiko Yajima | 1991-09-10 |
| 5026620 | Method for forming electrophotographic images | Hiroya Masaki, Meizo Shirose, Michiaki Ishikawa | 1991-06-25 |
| 5021317 | Electrostatic latent image developer with toner particles surface treated with a polysiloxane having ammonium salt functional groups | Akitoshi Matsubara, Jiro Takahashi, Hiroya Masaki | 1991-06-04 |
| 4960664 | Developer composition for developing electrostatic image and toner image forming process | Hiroyuki Yamada, Hiroya Masaki, Takahira Kasuya, Jiro Takahashi, Masafumi Uchida +1 more | 1990-10-02 |
| 4943507 | Toner for developing electrostatic latent image and method for developing electrostatic latent image with the same | Jiro Takahashi, Kenzi Tsuzita, Kunio Shigeta, Hiroya Masaki | 1990-07-24 |
| 4917983 | Toner for developing an electrostatic latent image comprising linear polyester polymer | Masafumi Uchida, Satoru Ikeuchi | 1990-04-17 |
| 4877704 | Process for developing latent electrostatic image using toner containing polyester resin | Jiro Takahashi, Meizo Shirose, Kunio Akimoto, Masafumi Uchida | 1989-10-31 |
| 4863824 | Toner for developing electrostatic latent image | Masafumi Uchida, Satoru Ikeuchi, Hideyo Nishikawa, Shingo Tanaka, Kuniyasu Kawabe | 1989-09-05 |
| 4623604 | Triboelectric stabilized toner for developing electrically charged images and a method for the production thereof | Kenzi Thuzita, Goichi Yamakawa, Makoto Tomono, Saburo Wakimoto, Sadayasu Miyahara +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, Tsuneo Wada | 1986-07-15 |
| 4557991 | Toner for development of electrostatic image containing binder resin and wax | Jiro Takahashi, Meizo Shirose, Naomi Inaba, Megumi Seki | 1985-12-10 |
| 4543311 | Toner image pressure fixing method | Syunji Matsuo, Makoto Tomono | 1985-09-24 |
| 4514486 | Method for the formation of images | Meizo Shirose, Kunio Ito, Jiro Takahashi, Kouichi Gunzi | 1985-04-30 |
| 4514487 | Method for manufacturing toner for electrophotography | Takahira Kasuya, Hideaki Morita, Goichi Yamakawa | 1985-04-30 |
| 4507378 | Method for the production of toner for electrophotography and the toner produced thereby | Tsuneo Wada, Kiyoshi Tamaki, Hideki Murata, Sadatugu Terada | 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, Tsuneo Wada, Akitoshi Matsubara | 1984-12-04 |
| 4448871 | Toner for developing an electrostatically charged image and manufacturing method thereof | Kiyoshi Tamaki, Hideki Murata, Sadatugu Terada, Tsuneo Wada, Akitoshi Matsubara | 1984-05-15 |