Issued Patents All Time
Showing 1–25 of 36 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8428479 | Imaging device and image forming apparatus | Akira Asaoka, Toshiya Satoh | 2013-04-23 |
| 7949281 | Process cartridge and image forming apparatus for effectively cleaning a charging roller at predetermined intervals | Takaya Muraishi, Takeshi Shintani, Ken Amemiya, Yoshiki Hozumi, Hiroshi Ono | 2011-05-24 |
| 7894758 | Image forming apparatus, image forming device charging device and lubricant supplying device constitution | Takeshi Shintani, Hiroshi Ono, Satoshi Hatori, Kaoru Yoshino, Akio Kosuge +3 more | 2011-02-22 |
| 7680429 | Charging device including charging roller and cleaning roller | Muraishi Takaya, Hiromichi Ninomiya, Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa +9 more | 2010-03-16 |
| 7486916 | Method and apparatus of image forming and process cartridge included in the apparatus | Kiyonori Tsuda, Takeo Suda, Satoshi Hatori, Yuji Arai, Tomoji Ishikawa +1 more | 2009-02-03 |
| 7477862 | Charged device, cleaning device, process cartridge, toner, and image-forming device that uses these | Muraishi Takaya, Hiromichi Ninomiya, Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa +9 more | 2009-01-13 |
| 7460810 | Image forming apparatus having a cleaning roller for a charging roller of the apparatus | Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa, Wakako Murakami, Nobuo Kuwabara | 2008-12-02 |
| 7433615 | Method of and image forming apparatus for controlling a light exposure condition | Wakako Murakami, Nobuo Kuwahara, Yoshiyuki Kimura, Hiroyuki Nagashima, Hiroshi Hosokawa | 2008-10-07 |
| 7428393 | Developing device, process cartridge, device unit, and image forming apparatus having a sealing member | Hiroshi Hosokawa, Yoshiyuki Kimura, Hiroyuki Nagashima | 2008-09-23 |
| 7400844 | Image forming apparatus and process cartridge with a cleaner for removing toner from an image bearing member | Eisaku Murakami, Hiroyuki Nagashima, Masato Yanagida, Naohiro Kumagai, Takeshi Shintani +4 more | 2008-07-15 |
| 7386257 | Imaging apparatus, and toner and process cartridge used in the imaging apparatus | Toshio Koike, Eisaku Murakami, Masato Yanagida, Takeshi Shintani, Naohiro Kumagai +4 more | 2008-06-10 |
| 7343132 | Image forming apparatus and process cartridge including sealable lubricating device | Yoshiyuki Kimura, Hiroyuki Nagashima, Nobuo Kuwabara, Hiroshi Hosokawa, Wakako Murakami | 2008-03-11 |
| 7305203 | Image forming apparatus including a process cartridge formed with a hole | Hiroyuki Nagashima, Yoshiyuki Kimura, Nobuo Kuwabara, Hiroshi Hosokawa, Hideki Zemba +1 more | 2007-12-04 |
| 7298991 | Image forming apparatus and image transferring unit for use in the same | Yoshiyuki Kimura, Takeshi Saito, Misao Tanzawa | 2007-11-20 |
| 7295796 | Image forming apparatus having a temporary toner holding device and a toner collecting device | Eisaku Murakami, Hideo Yoshizawa, Hiroyuki Nagashima, Yoshiyuki Kimura, Hideki Zemba +8 more | 2007-11-13 |
| 7272354 | Cleaning unit and image forming apparatus having multiple cleaning blades | Eisaku Murakami, Masami Tomita, Masanori Kawasumi, Toshio Koike, Naohiro Kumagai +11 more | 2007-09-18 |
| 7266324 | Charging device, and process cartridge and image forming apparatus using the charging device | Masato Yanagida, Hiroyuki Nagashima, Naohiro Kumagai, Toshio Koike, Masanori Kawasumi +5 more | 2007-09-04 |
| 7218877 | Charging device, and process cartridge and image forming apparatus including the charging device using the same | Masato Yanagida, Hiroyuki Nagashima, Naohiro Kumagai, Toshio Koike, Masanori Kawasumi +5 more | 2007-05-15 |
| 7162189 | Method and apparatus of image forming and process cartridge included in the apparatus | Kiyonori Tsuda, Takeo Suda, Satoshi Hatori, Yuji Arai, Tomoji Ishikawa +1 more | 2007-01-09 |
| 7146122 | Image forming apparatus and image forming unit | Satoshi Hatori, Kiyonori Tsuda, Naoto Watanabe, Takeo Suda, Yuji Arai +1 more | 2006-12-05 |
| 7139504 | Charging device, and process cartridge and image forming apparatus using the charging device | Masato Yanagida, Hiroyuki Nagashima, Naohiro Kumagai, Toshio Koike, Masanori Kawasumi +5 more | 2006-11-21 |
| 7136610 | Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itself | Yuji Arai, Kiyonori Tsuda, Takeo Suda, Satoshi Hatori, Tomoji Ishikawa +11 more | 2006-11-14 |
| 7130564 | Method and apparatus for image forming capable of removing residual toner without using a toner cleaning system, process cartridge for use in the apparatus and toner used for the image forming | Eisaku Murakami, Toshio Koike, Masato Yanagida, Naohiro Kumagai, Takeshi Shintani +4 more | 2006-10-31 |
| 7127195 | Image forming apparatus and image transferring unit for use in the same | Yoshiyuki Kimura, Takeshi Saito, Misao Tanzawa | 2006-10-24 |
| 7110696 | Cleaning unit, process cartridge, and image forming apparatus | Eisaku Murakami, Masami Tomita, Masanori Kawasumi, Toshio Koike, Naohiro Kumagai +11 more | 2006-09-19 |