Issued Patents All Time
Showing 1–25 of 41 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9029061 | Carrier, developer using the carrier, and developing device, image forming method, image forming apparatus and process cartridge using the developer | Koichi Sakata, Minoru Masuda, Hisashi Nakajima, Yutaka Takahashi, Hitoshi Iwatsuki +2 more | 2015-05-12 |
| 8877418 | Developing method and image forming method | Hisashi Nakajima, Shigenori Yaguchi, Hitoshi Iwatsuki, Toyoaki Tano, Mariko Takii +4 more | 2014-11-04 |
| 8778587 | Carrier for electrostatic latent image developer, electrostatic latent image developer formed of carrier and toner, and process cartridge using the developer | Shigenori Yaguchi, Toyoshi Sawada, Hiroshi Tohmatsu, Hitoshi Iwatsuki, Toyoaki Tano | 2014-07-15 |
| 8728698 | Carrier, developer, image forming method and process cartridge | Masashi Nagayama, Naoki Imahashi | 2014-05-20 |
| 8679719 | Carrier, developer and electrophotographic developing method and image forming method | Naoki Imahashi, Kousuke Suzuki | 2014-03-25 |
| 8663892 | Latent electrostatic image developing carrier, process cartridge and image forming apparatus | Shigenori Yaguchi, Toyoshi Sawada, Hitoshi Iwatsuki, Toyoaki Tano, Hiroshi Tohmatsu | 2014-03-04 |
| 8652738 | Contact developing method, image forming apparatus, and process cartridge | Shigenori Yaguchi, Hitoshi Iwatsuki, Mariko Takii, Toyoshi Sawada, Toyoaki Tano +4 more | 2014-02-18 |
| 8652735 | Carrier, developer, method of manufacturing carrier, developer container, image forming method, process cartridge, image forming apparatus, and supplemental developer | Koichi Sakata, Shigenori Yaguchi, Toyoshi Sawada, Hitoshi Iwatsuki, Hiroshi Tohmatsu +3 more | 2014-02-18 |
| 8637218 | Carrier for developing electrostatic latent image and developer | Koichi Sakata, Shigenori Yaguchi, Toyoshi Sawada, Hiroshi Tohmatsu, Hiroyuki Kishida | 2014-01-28 |
| 8518626 | Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and apparatus and process cartridge using the developer | Saori Yamada, Minoru Masuda, Hisashi Nakajima, Koichi Sakata, Hitoshi Iwatsuki +3 more | 2013-08-27 |
| 8512928 | Carrier for developing electrostatic latent image, and two-component developer, supplemental developer, image forming apparatus, process cartridge, and image forming method using the carrier | Hiroyuki Kishida, Shigenori Yaguchi, Toyoshi Sawada, Hiroshi Tohmatsu, Koichi Sakata +3 more | 2013-08-20 |
| 8512929 | Latent electrostatic image developing carrier, two-component developer and image forming method | Hitoshi Iwatsuki, Minoru Masuda, Yutaka Takahashi, Koichi Sakata, Toyoaki Tano | 2013-08-20 |
| 8481239 | Carrier for two-component developer | Hisashi Nakajima, Minoru Masuda, Yutaka Takahashi, Koichi Sakata, Hitoshi Iwatsuki +2 more | 2013-07-09 |
| 8475989 | Carrier, method for preparing the carrier, developer using the carrier, developer container, and image forming method and process cartridge using the developer | Yutaka Takahashi, Minoru Masuda, Hisashi Nakajima, Koichi Sakata, Hitoshi Iwatsuki +3 more | 2013-07-02 |
| 8431312 | Carrier, developer, and image forming method | Minoru Masuda, Yutaka Takahashi, Koichi Sakata, Hitoshi Iwatsuki | 2013-04-30 |
| 8257896 | Carrier | Minoru Masuda, Yutaka Takahashi, Koichi Sakata, Hitoshi Iwatsuki, Toyoaki Tano | 2012-09-04 |
| 8247150 | Carrier for developing electrostatic latent image, two-component developer, supplemental developer, process cartridge, and image forming method | Hitoshi Iwatsuki, Minoru Masuda, Yutaka Takahashi, Koichi Sakata | 2012-08-21 |
| 8211610 | Carrier for use in developer developing electrostatic image, developer using the carrier, and image forming method and apparatus and process cartridge using the developer | Minoru Masuda, Yutaka Takahashi, Koichi Sakata, Hitoshi Iwatsuki, Toyoaki Tano | 2012-07-03 |
| 8067141 | Electrographic carrier, developer, developing method, image forming apparatus, and process cartridge | Naoki Imahashi, Masashi Nagayama | 2011-11-29 |
| 8039189 | Electrophotographic developer and carrier therefor, core material particle for carrier for electrophotographic developer and production method thereof and image forming method | Naoki Imahashi, Masashi Nagayama | 2011-10-18 |
| 7763410 | Electrophotographic developing carrier, associated apparatus and methodology of classification and application | Masashi Nagayama, Naoki Imahashi | 2010-07-27 |
| 7468233 | Developer for use in electrophotography, image forming method and process cartridge | Masashi Nagayama, Naoki Imahashi | 2008-12-23 |
| 7320852 | Carrier for developer for developing electrostatic latent image, developer using same and image forming method using same | Akihiro Kotsugai, Naoki Imahashi, Hiroaki Takahashi | 2008-01-22 |
| 7192679 | Carrier for electrophotographic developer | Naoki Imahashi, Akihiro Kotsugai, Hiroaki Takahashi | 2007-03-20 |
| 6939654 | Carrier and developer for developing latent electrostatic images | Akihiro Kotsugai, Motoharu Tanaka, Naoki Imahashi, Hiroaki Takahashi | 2005-09-06 |