Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12050418 | Power supply device, image forming apparatus, and non-transitory recording medium with a superimposed voltage including an AC voltage and a DC voltage | Keita Yoshikawa, Kentaroh Kurosu, Suguru Yokozawa | 2024-07-30 |
| 10120303 | Image forming system | Takeshi Kojima, Tomoya Ohmura, Sho Sekiguchi, Kazuya Saitoh, Takuya Moriyama +3 more | 2018-11-06 |
| 9977361 | Image forming apparatus and image forming system | Hideaki Kanaya, Ryusuke Mase, Hiroki Ishii, Hiroyuki Sugiyama, Saki Izumi +1 more | 2018-05-22 |
| 9575441 | Image forming system | Takeshi Kojima, Tomoya Ohmura, Sho Sekiguchi, Kazuya Saitoh, Takuya Moriyama +3 more | 2017-02-21 |
| 9513574 | Image forming apparatus | Hiroyuki Sugiyama, Shigekazu Koguchi, Masahiko Shakuto, Shinji Minami, Tomoko Takahashi +2 more | 2016-12-06 |
| 9454106 | Image forming apparatus with drive control of a driven member based on a between-sheets time | Sho Sekiguchi, Takeshi Kojima, Tomoya Ohmura, Hiroomi Tamura, Tetsuto Ueda +3 more | 2016-09-27 |
| 9442429 | Image forming apparatus and method of switching collected developer route in image forming apparatus | Tetsuto Ueda, Hiroomi Tamura, Kazuya Saitoh, Sho Sekiguchi, Hirokatsu Suzuki +2 more | 2016-09-13 |
| 9354588 | Image forming apparatus and image forming method that remove toner from a cleaning blade for an image bearer by inversely rotating the image bearer | Tomoko Takahashi, Yasunobu Takagi, Hiroyuki Sugiyama, Masahiko Shakuto, Yoshinori Nakagawa +3 more | 2016-05-31 |
| 9316950 | Development device, process cartridge, image forming apparatus incorporating same, and developer amount adjustment method therefor | Tomoko Takahashi, Yoshiyuki Fukuda, Yoshio Hattori, Sho Akiyama, Takamasa Ozeki +3 more | 2016-04-19 |
| 9298125 | Image forming apparatus and image forming method | Hiroyuki Sugiyama, Takamasa Ozeki, Tomoko Takahashi, Yoshinori Nakagawa, Masahiko Shakuto +3 more | 2016-03-29 |
| 9250593 | Image forming apparatus and image density control method employed by the image forming apparatus | Ryusuke Mase, Tomoko Takahashi, Shotaro Hoshi, Ryuji Yoshida, Hiroyuki Sugiyama +4 more | 2016-02-02 |
| 9244374 | Image forming apparatus | Hiroyuki Sugiyama, Ryoh Tanoue, Masahiko Shakuto, Tomoko Takahashi, Yoshinori Nakagawa +4 more | 2016-01-26 |
| 9042748 | Image forming apparatus | Ryuji Yoshida, Tomoko Takahashi, Shotaro Hoshi, Hiroyuki Sugiyama, Ryusuke Mase +4 more | 2015-05-26 |
| 9042778 | Powder refilling device, process cartridge and image including same, and powder refilling method | Kazuya Saitoh, Akio Kosuge, Hirokatsu Suzuki, Ryuji Yoshida, Takuya Suganuma +2 more | 2015-05-26 |
| 8995899 | Protecting agent-supplying device, process cartridge, image forming apparatus | Kunio Hasegawa, Hiroshi Nakai, Shinya Tanaka, Kohsuke Yamamoto | 2015-03-31 |
| 8676108 | Protecting agent supplying member, protective layer forming device, and image forming apparatus | Kunio Hasegawa, Hiroshi Nakai, Shinya Tanaka, Kohsuke Yamamoto | 2014-03-18 |
| 8649722 | Protective agent supply device, process cartridge, and image forming apparatus | Kunio Hasegawa | 2014-02-11 |
| 8452222 | Image-bearing member protecting agent, protective layer forming device, image forming method, image forming apparatus, and process cartridge | Shinya Tanaka, Hiroshi Nakai, Kunio Hasegawa | 2013-05-28 |
| 8437676 | Image-bearing member protecting agent, method of applying an image-bearing member protecting agent, protective layer forming device, image forming method, process cartridge, and image forming apparatus | Shinya Tanaka, Hiroshi Nakai, Kunio Hasegawa | 2013-05-07 |
| 8437677 | Protecting agent-supplying device, process cartridge, image forming apparatus and image forming method | Kunio Hasegawa, Hiroshi Nakai, Shinya Tanaka | 2013-05-07 |
| 8351838 | Image bearing member-protecting agent, protecting agent supplying device, process cartridge, image forming apparatus and image forming method | Hiroshi Nakai, Kunio Hasegawa, Shinya Tanaka | 2013-01-08 |
| 8219017 | Image forming apparatus and process cartridge | Hiroshi Nakai, Kunio Hasegawa, Shinya Tanaka | 2012-07-10 |