Tatsumi; Kenzo

Patent Applications and Registrations

Patent applications and USPTO patent grants for Tatsumi; Kenzo.The latest application filed is for "seal member, developing device, process cartridge, and image forming apparatus".

Company Profile

0.52.35

Tatsumi; Kenzo - Osaka N/A JP
Tatsumi; Kenzo - Tokyo JP
Tatsumi; Kenzo - Ohsaka JP
Tatsumi; Kenzo - Oosaka JP
Tatsumi; Kenzo - Toyonaka JP
Tatsumi; Kenzo - Toyonaka-shi JP
Tatsumi; Kenzo - Kanagawa JP
Tatsumi; Kenzo - Yokohama-shi JP
Tatsumi; Kenzo - Yokohama JP
Tatsumi; Kenzo - Kanagawa-Ken JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Seal member, developing device, process cartridge, and image forming apparatus Grant 8,442,414 - Kubota , et al. May 14, 2	2013-05-14
Process cartridge and image forming apparatus Grant 8,275,285 - Kawakami , et al. September 25, 2	2012-09-25
Toner cartridge with refillable fresh and residual toner chambers, process cartridge, and method of making toner cartridge reusable Grant 8,260,186 - Kubota , et al. September 4, 2	2012-09-04
Toner-collecting device and image forming apparatus Grant 8,208,832 - Yoshida , et al. June 26, 2	2012-06-26
Latent image carrier having pairs of first and second positioning protrusions and image forming apparatus Grant 8,160,476 - Shimizu , et al. April 17, 2	2012-04-17
Seal Member, Developing Device, Process Cartridge, And Image Forming Apparatus App 20120063806 - Kubota; Tomohiro ; et al.	2012-03-15
Powder transport screw, and development device, process unit and image-forming apparatus comprising this powder transport screw Grant 8,135,313 - Yoshida , et al. March 13, 2	2012-03-13
Toner conveyer device, process cartridge, and image forming apparatus Grant 8,135,329 - Shimizu , et al. March 13, 2	2012-03-13
Toner agitating unit, toner hopper, process cartridge, and image forming apparatus Grant 8,103,195 - Yoshida , et al. January 24, 2	2012-01-24
Developing device, process unit, and image forming apparatus, with supporting members, grooves, and supported developing roller Grant 8,095,035 - Ooyoshi , et al. January 10, 2	2012-01-10
Seal member, developing device, process cartridge, and image forming apparatus Grant 8,081,897 - Kubota , et al. December 20, 2	2011-12-20
Toner cartridge, image forming apparatus, method of recycling toner cartridge Grant 8,068,770 - Kurenuma , et al. November 29, 2	2011-11-29
Toner conveying device, process cartridge, and image forming apparatus Grant 8,019,254 - Tatsumi , et al. September 13, 2	2011-09-13
Developing device of image forming apparatus Grant 7,979,013 - Yoshida , et al. July 12, 2	2011-07-12
Developing device, process cartridge and image forming apparatus Grant 7,965,958 - Tatsumi , et al. June 21, 2	2011-06-21
Developing device and image forming apparatus that uses this developing device Grant 7,965,957 - Kubota , et al. June 21, 2	2011-06-21
Toner container, image forming apparatus, method of recycling toner container Grant 7,962,069 - Kurenuma , et al. June 14, 2	2011-06-14
Waste-toner collecting device, process cartridge, and image forming apparatus Grant 7,945,203 - Shimizu , et al. May 17, 2	2011-05-17
Image forming method and apparatus for effectively positioning an image forming member Grant 7,940,419 - Tatsumi , et al. May 10, 2	2011-05-10
Waste-toner housing device, and image forming apparatus Grant 7,917,077 - Shimizu , et al. March 29, 2	2011-03-29
Powder conveyance device, toner conveyance device, process cartridge and image forming apparatus Grant 7,890,044 - Shimizu , et al. February 15, 2	2011-02-15
Cleaning device and image forming apparatus Grant 7,873,302 - Kawakami , et al. January 18, 2	2011-01-18
Toner Cartridge, Image Forming Apparatus, Method Of Recycling Toner Cartridge App 20100296847 - Kurenuma; Takeroh ; et al.	2010-11-25
Charging-roller bearing member, process cartridge, and image forming apparatus Grant 7,706,724 - Kawakami , et al. April 27, 2	2010-04-27
Toner collecting device, image forming unit and image forming apparatus Grant 7,634,213 - Yoshida , et al. December 15, 2	2009-12-15
Conveyor device, process cartridge, image forming apparatus, and method of forming image Grant 7,623,821 - Kubota , et al. November 24, 2	2009-11-24
Process cartridge for image forming apparatus Grant D603,450 - Tatsumi , et al. November 3, 2	2009-11-03
Toner container, toner supply device and image forming apparatus Grant 7,577,379 - Kita , et al. August 18, 2	2009-08-18
Process cartridge for image forming apparatus Grant D597,129 - Tatsumi , et al. July 28, 2	2009-07-28
Developing Device, Process Unit, And Image Forming Apparatus App 20090169246 - Ooyoshi; Hirobumi ; et al.	2009-07-02
Powder Transport Screw, And Development Device, Process Unit And Image-forming Apparatus Comprising This Powder Transport Screw App 20090169265 - YOSHIDA; Tomofumi ; et al.	2009-07-02
Toner Agitating Unit, Toner Hopper, Process Cartridge, And Image Forming Apparatus App 20090162101 - Yoshida; Tomofumi ; et al.	2009-06-25
Waste-toner Collecting Device, Process Cartridge, And Image Forming Apparatus App 20090154973 - Shimizu; Yoshiyuki ; et al.	2009-06-18
Seal Member, Developing Device, Process Cartridge, And Image Forming Apparatus App 20090110430 - KUBOTA; Tomohiro ; et al.	2009-04-30
Process cartridge for image forming apparatus Grant D590,011 - Tatsumi , et al. April 7, 2	2009-04-07
Process cartridge for image forming apparatus Grant D590,012 - Tatsumi , et al. April 7, 2	2009-04-07
Toner Cartridge, Process Cartridge, And Method Of Making Toner Cartridge Reusable App 20090022531 - Kubota; Tomohiro ; et al.	2009-01-22
Process cartridge for image forming apparatus Grant D580,968 - Tatsumi , et al. November 18, 2	2008-11-18
Developing Device, Process Cartridge And Image Forming Apparatus App 20080279586 - TATSUMI; Kenzo ; et al.	2008-11-13
Toner-collecting Device And Image Forming Apparatus App 20080267661 - YOSHIDA; Tomofumi ; et al.	2008-10-30
Latent Image Carrier Unit And Image Forming Apparatus App 20080219698 - Shimizu; Yoshiyuki ; et al.	2008-09-11
Toner recovery belt conveyor, process cartridge, and image forming apparatus using the same Grant 7,424,263 - Shimizu , et al. September 9, 2	2008-09-09
Process Cartridge And Image Forming Apparatus App 20080205930 - KAWAKAMI; Yoshihiro ; et al.	2008-08-28
Developing Device And Image Forming Apparatus That Uses This Developing Device App 20080187358 - Kubota; Tomohiro ; et al.	2008-08-07
Toner Conveying Device, Process Cartridge, And Image Forming Apparatus App 20080181692 - TATSUMI; Kenzo ; et al.	2008-07-31
Powder Conveyance Device, Toner Conveyance Device, Process Cartridge And Image Forming Apparatus App 20080170898 - SHIMIZU; Yoshiyuki ; et al.	2008-07-17
Cleaning Device And Image Forming Apparatus App 20080152408 - Kawakami; Yoshihiro ; et al.	2008-06-26
Developing Device Of Image Forming Apparatus App 20080145108 - Yoshida; Tomofumi ; et al.	2008-06-19
Image Forming Apparatus And Process Cartridge Used Therein App 20080145119 - TATSUMI; Kenzo ; et al.	2008-06-19
Toner Conveyer Device, Process Cartridge, And Image Forming Apparatus App 20080095559 - Shimizu; Yoshiyuki ; et al.	2008-04-24
Waste-toner housing device, and image forming apparatus App 20080089727 - Shimizu; Yoshiyuki ; et al.	2008-04-17
Charging-roller Bearing Member, Process Cartridge, And Image Forming Apparatus App 20080019720 - Kawakami; Yoshihiro ; et al.	2008-01-24
Conveyor Device, Process Cartridge, Image Forming Apparatus, And Method Of Forming Image App 20070248390 - Kubota; Tomohiro ; et al.	2007-10-25
Toner Cartridge, Image Forming Apparatus, Method of Recycling Toner Cartridge App 20070212119 - Kurenuma; Takeroh ; et al.	2007-09-13
Toner Container, Toner Supply Device And Image Forming Apparatus App 20070140747 - KITA; Emi ; et al.	2007-06-21
Toner Recovery Device, Process Cartridge, And Image Forming Apparatus App 20070140763 - Shimizu; Yoshiyuki ; et al.	2007-06-21
Toner Collecting Device, Image Forming Unit And Image Forming Apparatus App 20070104523 - Yoshida; Tomofumi ; et al.	2007-05-10
Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same Grant 7,214,461 - Yamashita , et al. May 8, 2	2007-05-08
Toner container, toner supply device and image forming apparatus Grant 7,184,691 - Kita , et al. February 27, 2	2007-02-27
Image forming method and apparatus for effectively positioning an image forming member App 20060268373 - Tatsumi; Kenzo ; et al.	2006-11-30
Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same App 20060251984 - Yamashita; Hiroshi ; et al.	2006-11-09
Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same Grant 7,110,710 - Yamashita , et al. September 19, 2	2006-09-19
Toner container, toner supply device and image forming apparatus App 20060099012 - Kita; Emi ; et al.	2006-05-11
Developing device and an image forming apparatus including the same Grant 7,027,761 - Koetsuka , et al. April 11, 2	2006-04-11
Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same App 20050196692 - Yamashita, Hiroshi ; et al.	2005-09-08
Image forming apparatus Grant 6,898,383 - Ohori , et al. May 24, 2	2005-05-24
Developing device and an image forming apparatus including the same App 20040234299 - Koetsuka, Kyohta ; et al.	2004-11-25
Developing device and image forming device Grant 6,771,918 - Tatsumi August 3, 2	2004-08-03
Image forming apparatus App 20040071475 - Ohori, Mayumi ; et al.	2004-04-15
Developing device and image forming apparatus including the same Grant 6,665,511 - Takeuchi , et al. December 16, 2	2003-12-16
Toner for electrophotography, developer using the same, image-forming process cartridge using the same, image-forming apparatus using the same and image-forming process using the same App 20030219669 - Yamashita, Hiroshi ; et al.	2003-11-27
Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper Grant 6,628,903 - Ohori , et al. September 30, 2	2003-09-30
Developing device and image forming device App 20030059228 - Tatsumi, Kenzo	2003-03-27
Developing device and image forming apparatus including the same App 20030021614 - Takeuchi, Nobutaka ; et al.	2003-01-30
Image-forming apparatus having a seal for a developer and a method for detecting a removal of the seal Grant 6,266,501 - Mizuishi , et al. July 24, 2	2001-07-24
Image forming apparatus with improved toner density control Grant 6,148,161 - Usui , et al. November 14, 2	2000-11-14
Image forming apparatus having a sensor for sensing an amount of reflected light from both a photoconductive element and a paper Grant 6,144,811 - Ohori , et al. November 7, 2	2000-11-07
Image forming apparatus having detachable transfer roller and discharge device Grant 6,144,822 - Yamaguchi , et al. November 7, 2	2000-11-07
Image forming apparatus and method for controlling charging and developing bias voltage Grant 6,128,449 - Zenba , et al. October 3, 2	2000-10-03
Image forming apparatus and method for automatically adjusting toner density in response to humidity variations Grant 5,915,143 - Watanabe , et al. June 22, 1	1999-06-22
Image forming device with improved mixing of circulated developer with replensihed toner Grant 5,887,224 - Mizuishi , et al. March 23, 1	1999-03-23
Toner bottle Grant D406,162 - Tatsumi February 23, 1	1999-02-23
Image forming apparatus, toner supply unit, and toner bottle attached thereto Grant 5,828,935 - Tatsumi , et al. October 27, 1	1998-10-27
Toner bottle Grant 5,765,079 - Yoshiki , et al. June 9, 1	1998-06-09
Detachable toner supply and processing assembly for an image forming apparatus and having a shutter mechanism for toner flow control Grant 5,734,953 - Tatsumi March 31, 1	1998-03-31
Method of and system for cleaning roller members Grant 5,532,795 - Tatsumi , et al. July 2, 1	1996-07-02

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