KUMAGAI; Naohiro

Patent Applications and Registrations

Patent applications and USPTO patent grants for KUMAGAI; Naohiro.The latest application filed is for "image forming apparatus".

Company Profile

11.124.131

KUMAGAI; Naohiro - Kanagawa JP
Kumagai; Naohiro - Kamisu-city JP
Kumagai; Naohiro - Kamisu N/A JP
Kumagai; Naohiro - Tokyo N/A JP
Kumagai; Naohiro - Machida N/A JP
Kumagai; Naohiro - Chiyoda-ku JP
KUMAGAI; Naohiro - US
Kumagai; Naohiro - Tokyo-to JP
Kumagai; Naohiro - Kawasaki JP
Kumagai; Naohiro - Machida city JP
Kumagai; Naohiro - Kawasaki-shi JP
Kumagai; Naohiro - Machida-shi JP
Kumagai; Naohiro - 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
Image Forming Apparatus App 20220283531 - KUMAGAI; Naohiro ; et al.	2022-09-08
Image forming apparatus Grant 11,175,610 - Kumagai , et al. November 16, 2	2021-11-16
Image Forming Apparatus App 20210325802 - KUMAGAI; Naohiro ; et al.	2021-10-21
Belt device, belt regulator, roller unit, and image forming apparatus Grant 11,112,734 - Kumagai , et al. September 7, 2	2021-09-07
Belt control device and image forming apparatus incorporating same Grant 10,955,771 - Kumagai , et al. March 23, 2	2021-03-23
Belt Control Device And Image Forming Apparatus Incorporating Same App 20200301321 - KUMAGAI; Naohiro ; et al.	2020-09-24
Belt Device, Belt Regulator, Roller Unit, And Image Forming Apparatus App 20200301322 - KUMAGAI; Naohiro ; et al.	2020-09-24
Image forming apparatus and image forming method Grant 10,281,848 - Wada , et al.	2019-05-07
Image forming apparatus with a support to adjust a rotator and a guide Grant 10,228,639 - Kogure , et al.	2019-03-12
Image forming apparatus and image forming method for controlling a secondary transfer bias according to recording sheet type Grant 10,185,255 - Kochi , et al. Ja	2019-01-22
Image forming apparatus Grant 10,152,001 - Kumagai , et al. Dec	2018-12-11
Belt device including support portions and an adjuster to adjust positions of the support portions Grant 10,120,304 - Fujita , et al. November 6, 2	2018-11-06
Image forming apparatus Grant 10,101,690 - Sugiura , et al. October 16, 2	2018-10-16
Image Forming Apparatus App 20180059583 - KUMAGAI; Naohiro ; et al.	2018-03-01
Belt unit, transfer unit, and image forming apparatus including a pressing member that presses an edge of a belt Grant 9,897,943 - Fujita , et al. February 20, 2	2018-02-20
Belt Device And Image Forming Apparatus Including Same App 20180046115 - FUJITA; Junpei ; et al.	2018-02-15
Image forming apparatus and transfer bias control Grant 9,835,987 - Sugiura , et al. December 5, 2	2017-12-05
Image Forming Apparatus App 20170329263 - Sugiura; Kenji ; et al.	2017-11-16
Image forming apparatus Grant 9,817,341 - Ohsugi , et al. November 14, 2	2017-11-14
Belt device and image forming apparatus including same Grant 9,811,036 - Fujita , et al. November 7, 2	2017-11-07
Image forming apparatus Grant 9,811,046 - Wada , et al. November 7, 2	2017-11-07
Image forming apparatus Grant 9,766,575 - Ohsugi , et al. September 19, 2	2017-09-19
Image Forming Apparatus App 20170242371 - KOGURE; Seiichi ; et al.	2017-08-24
Image forming apparatus that adjusts a transfer bias according to surface properties of a transfer target Grant 9,740,156 - Wada , et al. August 22, 2	2017-08-22
Image Forming Apparatus And Image Forming Method App 20170235257 - KOCHI; Naoto ; et al.	2017-08-17
Image Forming Apparatus And Image Forming Method App 20170235258 - WADA; Yuuji ; et al.	2017-08-17
Image forming apparatus Grant 9,720,364 - Kogure , et al. August 1, 2	2017-08-01
Image forming apparatus Grant 9,720,355 - Ohsugi , et al. August 1, 2	2017-08-01
Cleaning device and image forming apparatus incorporating same Grant 9,696,662 - Yogosawa , et al. July 4, 2	2017-07-04
Image forming apparatus including contact members disposed side by side at positions opposing a guide unit Grant 9,690,246 - Kogure , et al. June 27, 2	2017-06-27
Image forming apparatus Grant 9,645,530 - Kochi , et al. May 9, 2	2017-05-09
Image forming apparatus controlling transfer bias based on temperature and humidity Grant 9,632,461 - Sugiura , et al. April 25, 2	2017-04-25
Belt Device And Image Forming Apparatus Including Same App 20170090374 - FUJITA; Junpei ; et al.	2017-03-30
Image Forming Apparatus App 20170003630 - OHSUGI; Tatsuya ; et al.	2017-01-05
Image Forming Apparatus App 20160334739 - OHSUGI; Tatsuya ; et al.	2016-11-17
Image Forming Apparatus App 20160334738 - KOCHI; Naoto ; et al.	2016-11-17
Image Forming Apparatus App 20160306317 - WADA; YUUJI ; et al.	2016-10-20
Image forming apparatus Grant 9,459,564 - Ohsugi , et al. October 4, 2	2016-10-04
Cleaning device and image forming apparatus including same Grant 9,454,126 - Mitani , et al. September 27, 2	2016-09-27
Image Forming Apparatus App 20160274505 - OHSUGI; Tatsuya ; et al.	2016-09-22
Image Forming Apparatus App 20160274503 - SUGIURA; Kenji ; et al.	2016-09-22
Image Forming Apparatus App 20160274504 - WADA; Yuuji ; et al.	2016-09-22
Image forming apparatus with a fulcrum that pivotally supports an image bearer and detector Grant 9,423,749 - Kumagai , et al. August 23, 2	2016-08-23
Pressing device, in an image forming apparatus that includes an adjuster connected to two lateral plates Grant 9,423,724 - Ichikawa , et al. August 23, 2	2016-08-23
Cleaning device and image forming apparatus incorporating same Grant 9,405,271 - Yogosawa , et al. August 2, 2	2016-08-02
Cleaning Device And Image Forming Apparatus Incorporating Same App 20160216647 - Yogosawa; Kazuki ; et al.	2016-07-28
Image forming apparatus Grant 9,395,658 - Wada , et al. July 19, 2	2016-07-19
Image forming apparatus including a transfer bias controller Grant 9,383,691 - Wada , et al. July 5, 2	2016-07-05
Image Forming Apparatus App 20160170364 - KOGURE; Seiichi ; et al.	2016-06-16
Image Forming Apparatus App 20160170363 - KOGURE; Seiichi ; et al.	2016-06-16
Cleaning Device And Image Forming Apparatus Including Same App 20160170365 - MITANI; YUSUKE ; et al.	2016-06-16
Image Forming Apparatus App 20160161887 - SUGIURA; Kenji ; et al.	2016-06-09
Image Forming Apparatus App 20160161888 - WADA; Yuuji ; et al.	2016-06-09
Image forming apparatus Grant 9,360,807 - Kogure , et al. June 7, 2	2016-06-07
Cleaning Device And Image Forming Apparatus Incorporating Same App 20160124374 - YOGOSAWA; Kazuki ; et al.	2016-05-05
Cleaning device and image forming apparatus including same Grant 9,329,533 - Mitani , et al. May 3, 2	2016-05-03
Image Forming Apparatus App 20160109832 - OHSUGI; Tatsuya ; et al.	2016-04-21
Image Forming Apparatus App 20160041508 - KOGURE; Seiichi ; et al.	2016-02-11
Image forming apparatus Grant 9,256,167 - Nagata , et al. February 9, 2	2016-02-09
Lubricant supplying device, image forming apparatus, and process cartridge Grant 9,256,190 - Hatori , et al. February 9, 2	2016-02-09
Image Forming Apparatus App 20160033915 - KUMAGAI; Naohiro ; et al.	2016-02-04
Cleaning device and image forming apparatus incorporating same Grant 9,248,638 - Yogosawa , et al. February 2, 2	2016-02-02
Image Forming Apparatus App 20150378284 - WADA; Yuuji ; et al.	2015-12-31
Cleaner, and image forming apparatus using the cleaner Grant 9,213,271 - Wada , et al. December 15, 2	2015-12-15
Lubricant supply device, process unit, image forming apparatus, and process unit manufacturing method Grant 9,207,625 - Gotoh , et al. December 8, 2	2015-12-08
Image forming apparatus and waste toner conveying device incorporated in same Grant 9,176,457 - Yoshino , et al. November 3, 2	2015-11-03
Belt Unit, Transfer Unit, And Image Forming Apparatus App 20150268591 - FUJITA; Junpei ; et al.	2015-09-24
Lubricant Supplying Device, Image Forming Apparatus, And Process Cartridge App 20150268619 - HATORI; Satoshi ; et al.	2015-09-24
Cleaning Device And Image Forming Apparatus Including Same App 20150261137 - MITANI; Yusuke ; et al.	2015-09-17
Lubricant supply system, image forming apparatus, and process cartridge Grant 9,128,452 - Hatori , et al. September 8, 2	2015-09-08
Detachable unit and image forming apparatus incorporating same Grant 9,104,171 - Azeyanagi , et al. August 11, 2	2015-08-11
Pressing Device, Transfer Device Including The Pressing Device, And Image Forming Apparatus Including The Transfer Device App 20150212454 - ICHIKAWA; Junichi ; et al.	2015-07-30
Cleaning Device And Image Forming Apparatus Incorporating Same App 20150205248 - YOGOSAWA; Kazuki ; et al.	2015-07-23
Lubricant supplying device, image forming apparatus, and process cartridge Grant 9,081,347 - Fujimori , et al. July 14, 2	2015-07-14
Lubricant supplying device, image forming apparatus, and process cartridge Grant 9,068,693 - Hatori , et al. June 30, 2	2015-06-30
Lubricant applicator, image forming apparatus, and process cartridge Grant 9,063,500 - Gotoh , et al. June 23, 2	2015-06-23
Lubricant applicator, image forming apparatus, and process cartridge Grant 9,052,669 - Tomita , et al. June 9, 2	2015-06-09
Cleaner, And Image Forming Apparatus Using The Cleaner App 20150147074 - WADA; Yuuji ; et al.	2015-05-28
Image carrier, process cartridge, and image forming apparatus Grant 9,008,546 - Taguchi , et al. April 14, 2	2015-04-14
Image Forming Apparatus App 20150037054 - NAGATA; Atsushi ; et al.	2015-02-05
Lubricant Supply System, Image Forming Apparatus, And Process Cartridge App 20140363178 - HATORI; Satoshi ; et al.	2014-12-11
Lubricant supplying device, image forming apparatus, and process cartridge Grant 8,909,122 - Gotoh , et al. December 9, 2	2014-12-09
Lubricant supplying device, and image forming apparatus Grant 8,855,507 - Seki , et al. October 7, 2	2014-10-07
Lubricant Supply Device, Process Unit, Image Forming Apparatus, And Process Unit Manufacturing Method App 20140270881 - GOTOH; Ryohta ; et al.	2014-09-18
Detachable Unit And Image Forming Apparatus Incorporating Same App 20140199091 - AZEYANAGI; Yuta ; et al.	2014-07-17
Image Carrier, Process Cartridge, And Image Forming Apparatus App 20140147170 - TAGUCHI; Nobuyuki ; et al.	2014-05-29
Polymer-dispersed Polyol And Process For Producing Flexible Polyurethane Foam App 20140113985 - SASAKI; Takayuki ; et al.	2014-04-24
Lubricant Applicator, Image Forming Apparatus, And Process Cartridge App 20140037303 - TOMITA; Daisuke ; et al.	2014-02-06
Lubricant Applicator, Image Forming Apparatus, And Process Cartridge App 20140037302 - GOTOH; Ryohta ; et al.	2014-02-06
Polymer-dispersed polyol and process for producing flexible polyurethane foam Grant 8,642,668 - Sasaki , et al. February 4, 2	2014-02-04
Image Forming Apparatus And Waste Toner Conveying Device Incorporated In Same App 20140010579 - YOSHINO; Kaoru ; et al.	2014-01-09
Cleaning blade, cleaning device, process cartridge, image forming apparatus, and holder member Grant 8,620,199 - Kumagai December 31, 2	2013-12-31
Lubricant Supplying Device, Image Forming Apparatus, And Process Cartridge App 20130279923 - Gotoh; Ryohta ; et al.	2013-10-24
Lubricant Supplying Device, And Image Forming Apparatus App 20130251381 - Seki; Hideyasu ; et al.	2013-09-26
Lubricant Supplying Device, Image Forming Apparatus, And Process Cartridge App 20130251380 - FUJIMORI; Akira ; et al.	2013-09-26
Lubricant Supplying Device, Image Forming Apparatus, And Process Cartridge App 20130243449 - Hatori; Satoshi ; et al.	2013-09-19
Flexible polyurethane foam and process for its production Grant 8,487,015 - Sasaki , et al. July 16, 2	2013-07-16
Image forming apparatus Grant 8,472,856 - Ninomiya , et al. June 25, 2	2013-06-25
Waste toner collector, image forming apparatus, and waste toner collection container Grant 8,452,199 - Kumagai May 28, 2	2013-05-28
Polyoxyalkylene Polyol, Polymer-dispersed Polyol, Flexible Polyurethane Foam And Production Process Thereof App 20130059936 - Sasaki; Takayuki ; et al.	2013-03-07
Process for producing flexible polyurethane foam Grant 8,357,730 - Sasaki , et al. January 22, 2	2013-01-22
Process For Producing Flexible Polyurethane Foam And Seat App 20120252916 - SASAKI; Takayuki ; et al.	2012-10-04
Flexible Polyurethane Foam And Its Production Process, And Seat Cushion For Automobile App 20120208912 - Sasaki; Takayuki ; et al.	2012-08-16
Polymer-dispersed Polyol And Process For Producing Flexible Polyurethane Foam App 20120178840 - SASAKI; Takayuki ; et al.	2012-07-12
Charging device capable of efficiently charging image carrier Grant 8,204,400 - Karasawa , et al. June 19, 2	2012-06-19
Image forming apparatus Grant 8,190,041 - Kumagai May 29, 2	2012-05-29
Cleaning Blade, Cleaning Device, Process Cartridge, Image Forming Apparatus, And Holder Member App 20120063827 - KUMAGAI; Naohiro	2012-03-15
Image forming apparatus App 20110206432 - Ninomiya; Hiromichi ; et al.	2011-08-25
Lubricant applying unit, a process cartridge including the same, and an image forming apparatus provided with the process cartridge including the same Grant 7,831,189 - Harada , et al. November 9, 2	2010-11-09
Flexible polyurethane foam, process for its production, and seat for automobile using the flexible polyurethane foam Grant 7,825,166 - Sasaki , et al. November 2, 2	2010-11-02
Polymer-dispersed Polyol And Process For Producing Flexible Polyurethane Foam App 20100096768 - SASAKI; Takayuki ; et al.	2010-04-22
Process For Producing Flexible Polyurethane Foam App 20090270520 - SASAKI; Takayuki ; et al.	2009-10-29
Waste toner collector, image forming apparatus, and waste toner collection container App 20090263147 - Kumagai; Naohiro	2009-10-22
Process For Producing Flexible Polyurethane Foam App 20090239964 - SASAKI; Takayuki ; et al.	2009-09-24
Process For Producing Flexible Polyurethane Foam App 20090215918 - SASAKI; Takayuki ; et al.	2009-08-27
Charging Device Capable Of Efficiently Charging Image Carrier App 20090180795 - Karasawa; Shinya ; et al.	2009-07-16
Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridge Grant 7,542,712 - Tanaka , et al. June 2, 2	2009-06-02
Flexible Polyurethane Foam And Process For Its Production App 20090062416 - Sasaki; Takayuki ; et al.	2009-03-05
Image Forming Apparatus App 20090060536 - KUMAGAI; Naohiro	2009-03-05
Cleaning device, process cartridge and image forming apparatus Grant 7,493,075 - Shintani , et al. February 17, 2	2009-02-17
Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereon Grant 7,430,377 - Koike , et al. September 30, 2	2008-09-30
Image forming apparatus and process cartridge with a cleaner for removing toner from an image bearing member Grant 7,400,844 - Murakami , et al. July 15, 2	2008-07-15
Imaging apparatus, and toner and process cartridge used in the imaging apparatus Grant 7,386,257 - Koike , et al. June 10, 2	2008-06-10
Flexible Polyurethane Foam, Process For Its Production, And Seat For Automobile Using The Flexible Polyurethane Foam App 20080081847 - SASAKI; Takayuki ; et al.	2008-04-03
Powder transport unit having enhanced transportability and operability, process cartridge and image forming apparatus using the same App 20080013998 - Kumagai; Naohiro ; et al.	2008-01-17
Image forming apparatus having a temporary toner holding device and a toner collecting device Grant 7,295,796 - Murakami , et al. November 13, 2	2007-11-13
Cleaning unit and image forming apparatus having multiple cleaning blades Grant 7,272,354 - Murakami , et al. September 18, 2	2007-09-18
Charging device, and process cartridge and image forming apparatus using the charging device Grant 7,266,324 - Yanagida , et al. September 4, 2	2007-09-04
Lubricant Applying Unit, A Process Cartridge Including The Same, And An Image Forming Apparatus Provided With The Process Cartridge Including The Same App 20070172273 - Harada; Hiroomi ; et al.	2007-07-26
Cleaning Device, Process Cartridge, Image Forming Apparatus And Toner App 20070154246 - Shintani; Takeshi ; et al.	2007-07-05
Cleaning device for cleaning a surface of an image support body Grant 7,228,099 - Shintani , et al. June 5, 2	2007-06-05
Charging device, and process cartridge and image forming apparatus including the charging device using the same Grant 7,218,877 - Yanagida , et al. May 15, 2	2007-05-15
Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridge App 20070059067 - Tanaka; Shuji ; et al.	2007-03-15
Cleaning unit, process cartridge, image forming apparatus, and toner App 20070036595 - Amemiya; Ken ; et al.	2007-02-15
Charging device, and process cartridge and image forming apparatus using the charging device App 20070014588 - Yanagida; Masato ; et al.	2007-01-18
Cleaning unit, process cartridge, image forming apparatus, and toner Grant 7,149,465 - Amemiya , et al. December 12, 2	2006-12-12
Charging device, and process cartridge and image forming apparatus using the charging device Grant 7,139,504 - Yanagida , et al. November 21, 2	2006-11-21
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 Grant 7,130,564 - Murakami , et al. October 31, 2	2006-10-31
Cleaning unit, process cartridge, image forming apparatus, and toner App 20060216085 - Murakami; Eisaku ; et al.	2006-09-28
Cleaning unit, process cartridge, and image forming apparatus Grant 7,110,696 - Murakami , et al. September 19, 2	2006-09-19
Imaging apparatus, and toner and process cartridge used in the imaging apparatus App 20060177239 - Koike; Toshio ; et al.	2006-08-10
Cleaning unit, process cartridge, and image forming apparatus Grant 7,085,528 - Shintani , et al. August 1, 2	2006-08-01
Charging device, and process cartridge and image forming apparatus including the charging device using the same App 20060165431 - Yanagida; Masato ; et al.	2006-07-27
Cleaning unit, process cartridge, image forming apparatus, and toner Grant 7,065,316 - Yanagida , et al. June 20, 2	2006-06-20
Charging device, and process cartridge and image forming apparatus including the charging device Grant 7,062,194 - Yanagida , et al. June 13, 2	2006-06-13
Imaging apparatus, and toner and process cartridge used in the imaging apparatus Grant 7,050,741 - Koike , et al. May 23, 2	2006-05-23
Lubricant for electrophotography, lubricant applying unit, process cartridge, and image forming apparatus App 20050164108 - Murakami, Eisaku ; et al.	2005-07-28
Image forming apparatus, process cartridge, and toner App 20050084271 - Koike, Toshio ; et al.	2005-04-21
Cleaning unit, process cartridge, image forming apparatus, and toner App 20050074264 - Amemiya, Ken ; et al.	2005-04-07
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 App 20050036805 - Murakami, Eisaku ; et al.	2005-02-17
Image forming apparatus and process cartridge App 20050025520 - Murakami, Eisaku ; et al.	2005-02-03
Cleaning device, process cartridge, image forming apparatus and toner App 20050002705 - Shintani, Takeshi ; et al.	2005-01-06
Charging device, and process cartridge and image forming apparatus including the charging device App 20040228648 - Yanagida, Masato ; et al.	2004-11-18
Charging device, and process cartridge and image forming apparatus using the charging device App 20040213597 - Yanagida, Masato ; et al.	2004-10-28
Imaging apparatus, and toner and process cartridge used in the imaging apparatus App 20040202495 - Koike, Toshio ; et al.	2004-10-14
Cleaning unit, process cartridge, and image forming apparatus App 20040170455 - Shintani, Takeshi ; et al.	2004-09-02
Cleaning unit, process cartridge, image forming apparatus, and toner App 20040141779 - Yanagida, Masato ; et al.	2004-07-22
Cleaning unit, process cartridge, image forming apparatus, and toner App 20040136763 - Murakami, Eisaku ; et al.	2004-07-15

uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.

While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.

All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.