Inventor

Nao Itabashi

Inventor

Nagoya, JP

Overview

2004–2021

Patent span

Physics

Primary field (CPC G)

Patents· 178 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G03Gprimary

G03GElectrography90%

LOC165%

F16HGearing2%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers1%

B65BMachines, apparatus or devices for, or methods of, packaging articles or materials1%

F21SNon-portable lighting devices1%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted1%

Y10TTechnical subjects covered by former us classification1%

PatentTitleYear

11,112,755Drum cartridge including movable electrical contact surface, and image-forming apparatus using the same2021 11,112,756Drum cartridge including electrical contact surface movable relative to drum frame2021 11,099,501Toner cartridge having toner memory and attachable to drum cartridge having drum memory2021 11,073,786Developing cartridge2021 11,067,919Developing cartridge capable of reducing size of image forming apparatus2021 11,054,787Drum cartridge having electrical contact surface positioned at outer surface of drum frame2021 11,042,105Developing cartridge including housing and gear2021 11,029,624Developing cartridge2021 11,022,936Developing cartridge including developing roller and coupling2021 11,022,931Developing cartridge having a member with a hole and a lever received in the hole2021 11,022,912Developing cartridge having coupling and developing roller2021 10,845,731Developer cartridge mountable to a drum cartridge2020 10,845,755Drum unit having electrical contact surface positioned at outer surface of frame and image forming apparatus provided with the same2020 10,782,644Developing cartridge2020 10,768,550Developing cartridge including developing roller and coupling2020 10,670,994Developing cartridge including housing and gear2020 10,649,369Developing cartridge capable of reducing size of image forming apparatus2020 10,620,580Developing cartridge provided with cover2020 10,585,373Image forming apparatus capable of applying appropriate voltage to developing roller irrespective of deviation in pressing force of pressing member2020 10,571,828Developing cartridge including developing roller and coupling2020 10,564,599Image forming apparatus capable of determining whether toner cartridge is attached to appropriate slot provided in main casing2020 10,564,596Image forming apparatus having a drawer including an exposure head2020 10,545,429Developing cartridge2020 10,520,855Developing cartridge having coupling and developing roller2019 10,496,011Developing cartridge having coupling and developing roller2019 10,459,398Developing cartridge having electric contact surface2019 10,444,667Developing cartridge capable of reducing size of image forming apparatus2019 10,401,784Image forming apparatus having rotatably mounted drum cartridge2019 10,401,789Drum unit having electrical contact surface positioned at outer surface of frame and image forming apparatus provided with the same2019 10,386,780Image forming apparatus2019 10,372,064Configuration for stopping movement of a status specifying element for a developing cartridge including gear and rotating portion2019 10,310,413Developing cartridge including developing roller having developing roller shaft2019 10,310,414Developing cartridge including housing and gear2019 10,303,088Developing cartridge including developing roller and gear2019 10,303,112Developing cartridge provided with cover2019 10,254,681Developing cartridge capable of reducing size of image forming apparatus2019 10,254,708Image forming apparatus having a developing cartridge with a storage medium and an electrical contact surface2019 10,248,075Image forming apparatus including developing cartridge having electrical contact surface2019 10,234,818Developing cartridge having arrangement of chip holder and coupling to provide compact cartridge2019 10,203,651Developing Cartridge2019 10,191,408Image forming apparatus and cartridge including detection gear2019 10,175,637Developing cartridge having contact surface2019 10,162,302Developing cartridge having contact surface2018 10,152,017Developing cartridge2018 10,133,232Image forming apparatus including frame and cartridge attachable thereto2018 10,118,752Packing member and cushion2018 10,101,684Image forming apparatus and cartridge comprising detection gear2018 10,101,686Developer cartridge having housing accommodating flexible container for storing developer2018 10,088,798Developing cartridge including tubular member movable from first position to second position2018 10,073,377Developing cartridge2018 10,054,875Configuration for stopping movement of a status specifying element for a developing cartridge including gear and rotating portion2018 10,048,645Developing cartridge provided with cover2018 10,042,282Developing cartridge capable of releasing meshing between gear and rack gear2018 10,031,472Developing cartridge2018 10,025,225Developing cartridge capable of reducing size of image forming apparatus2018 10,025,264Developing cartridge including storage medium having electric contact surface2018 10,018,960Developing cartridge including electric contact surface2018 10,012,949Developing cartridge capable of detecting specification thereof2018 10,001,745Developing cartridge having shaft, gear, tubular member, and relay member2018 9,964,917Developing cartridge provided with protrusion movable with rotation of gear2018 9,952,554Developing cartridge having electrode provided with protrusion2018 9,946,190Developing cartridge2018 9,946,198Developing cartridge capable of stopping movement of protrusion of gear2018 9,927,767'Developing cartridge including lock rib positioned at end surface of casing'2018 9,897,939'Developer cartridge'2018 9,891,581'Developing cartridge provided with cover'2018 9,846,387Developing cartridge having coupling and developing roller2017 9,785,093'Developing cartridge including developing roller having developing roller shaft'2017 9,718,597'Cushion'2017 9,575,460'Developer cartridge having developing roller and electrode'2017 9,557,684'Developing cartridge including developing roller having developing roller shaft'2017 9,529,319'Developing cartridge having coupling and developing roller'2016 9,529,302'Developing cartridge provided with cover'2016 9,494,914'Developing cartridge including developing roller having developing roller shaft'2016 9,471,005'Developing cartridge positioning portions for relative positioning of developing roller, supply roller and housing'2016 9,471,029'Cartridges including detection member and cover member'2016 9,417,557'Developing cartridge including housing having opening for filling housing with developer'2016 9,400,480'Image forming apparatus having belt unit and supporting member'2016 9,395,684'Developing cartridge having coupling and developing roller'2016 9,360,800'Image-forming device having waste developer material conveying mechanism'2016 9,360,799'Toner filling apparatus'2016 9,329,522'Developing cartridges with fixed protrusions and manufacturing method thereof'2016 9,323,214'Developing cartridge provided with cover, and process cartridge having the same'2016 9,274,451'Image forming apparatus and cartridge therefor'2016 9,268,296'Image forming apparatus and cartridge therefor'2016 9,239,560'Image-forming device having waste developer material conveying mechanism'2016 9,217,990'Image forming apparatus having process cartridge detachably mounted therein'2015 9,207,632'Developing cartridge provided with detection body'2015 9,195,207'Cartridge having detection body'2015 9,152,082'Cartridge having contact member to mitigate damage to cartridge frame'2015 9,141,033'Cartridge'2015 9,122,241'Process cartridge capable of accurately positioning developer carrying member and photosensitive drum'2015 9,086,654'Developing device provided with developing roller and supply roller'2015 9,075,390'Process cartridge capable of accurately positioning developer carrying member and photosensitive drum'2015 9,052,641'Developing cartridge having frame to which seal is assembled without adhesion'2015 9,046,869'Cartridges including detection member and cover member'2015 9,031,458'Process unit having drum cartridge and developer cartridge'2015 9,020,370'Image forming apparatus capable of determining type of cartridge mounted therein based on detection of a detection portion of the cartridge'2015 9,020,369'Cartridge and image forming apparatus provided therewith'2015 9,014,595'Image-forming device having holder unit, in which toner box is detechably mounted'2015 9,008,522'Developing cartridge having housing and developing roller'2015 8,995,891'Developing cartridges with fixed protrusions and manufacturing method thereof'2015 8,995,847'Cartridge and image forming apparatus provided therewith'2015 8,995,877'Process cartridge having cover for protecting photosensitive drum'2015 8,995,846'Cartridge mountable on image-forming apparatus'2015 8,995,866'Cartridge having coupling member and detection body'2015 8,971,728'Image forming apparatus and cartridge therefor'2015 8,965,222'Image forming apparatus and cartridge therefor'2015 8,953,977'Developer container provided with cap for covering filling port'2015 8,923,709'Image forming apparatus capable of determining a condition of cartridge assembled therein'2014 8,923,729'Image-forming device having drawer to which cartridges are detachably attachable'2014 8,909,098'Developing device provided with developing roller and supply roller'2014 D0718378'Photosensitive drum unit'2014 D0718381'Toner cartridge'2014 8,886,059'Image forming device capable of preventing erroneous attachment of cartridge'2014 8,879,948'Toner cartridge'2014 8,849,133'Image forming apparatus and cartridge therefor'2014 8,849,157'Cap for developer container and developer container having the same'2014 8,843,014'Image forming apparatus capable of judging whether cartridge is newly mounted'2014 8,831,482'Image forming device and drum unit mounted to the same'2014 8,811,858'Charging unit and discharging unit'2014 8,805,264'Image-forming device and developer material unit having waste developer material accommodating part'2014 8,805,250'Blade pressing member and developer cartridge'2014 8,750,753'Process unit and image forming device'2014 8,712,295'Developing device'2014 8,706,004'Image forming apparatus having toner cartridge with movable shutter'2014 8,676,095'Toner container'2014 8,676,087'Image forming device having charging wire cleaning mechanism'2014 8,660,460'Developing device'2014 8,655,235'Toner cartridge'2014 8,639,156'Image-forming device having holder unit, in which toner box is detachably mounted'2014 8,639,163'Toner box having shutter and developing device equipped with the toner box'2014 8,634,744'Image forming device and toner cartridge mounted therein'2014 8,588,648'Image-forming device, in which holder unit detachably holding toner box is movably mounted'2013 8,577,250'Toner box having shutter that opens and closes communication through-hole'2013 8,565,623'Image forming device that has support member having cover member'2013 8,565,637'Image forming device having retaining member retaining toner cartridges'2013 8,554,107'Toner box and developing device having the same'2013 8,538,288'Toner box and developing device for image forming device'2013 8,457,523'Image forming apparatus having toner cartridge with movable shutter'2013 8,437,656'Charger'2013 8,385,774'Image forming apparatus having toner cartridge'2013 8,358,953'Image-forming device having holder unit for toner box'2013 8,346,118'Method for attaching charging wire, method for manufacturing process cartridge, and process cartridge'2013 8,331,825'Image forming apparatus having support member for supporting exposure member'2012 8,290,400'Image forming apparatus'2012 8,229,334'Developer unit, process device and image forming apparatus'2012 8,180,252'Photosensitive body for electro-photography'2012 8,099,020'Developer cartridge and developing device'2012 8,036,570'Process cartridge'2011 8,005,398'Process cartridge'2011 D0638053'Photosensitive drum unit'2011 D0638051'Toner cartridge'2011 D0638052'Toner cartridge'2011 D0638055'Toner cartridge'2011 D0638054'Toner cartridge'2011 7,925,179'Image forming apparatus with dust-proof wall'2011 D0631094'Toner cartridge'2011 D0631093'Cover for toner cartridge'2011 7,853,176'Image forming apparatus'2010 7,813,677'Process cartridge having charging device with conductive grid electrode'2010 7,809,306'Process cartridge'2010 7,764,911'Developer unit, process device and image forming apparatus'2010 7,734,216'Cartridge and image forming apparatus with discharge electrode detachably attached to a frame'2010 7,720,411'Image forming apparatus'2010 7,656,421'Image forming apparatus'2010 7,647,003'Image forming apparatus having a drawer and a drawer lock'2010 7,463,850'Charging device for a process cartridge and an image forming apparatus'2008 7,428,386'Image forming apparatus including a notifying unit'2008 7,398,034'Process cartridge for image-forming device'2008 7,356,286'Charger, image forming apparatus and process cartridge'2008 7,336,913'Developing apparatus, process cartridge and image forming apparatus for preventing leakage'2008 7,197,262'Attachable/detachable transfer device, an attachable/detachable cartridge and an image forming apparatus'2007 7,163,032'Developer filling method'2007 7,024,150'Separable cleaning device for an image forming apparatus'2006 6,920,297'Image forming apparatus that cleans a wire of a charger'2005 6,901,228'Developing agent container including a sealing element for preventing developing agent from leaking out'2005 6,792,227'Developing agent container including a sealing element for preventing developing agent from leaking out'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2004–2021Patents assigned to BROTHER IND LTD (175)· patent assignee history

2004–2021Based in Nagoya, JP· patent location history

2012–2016Patents assigned to ITABASHI NAO (65)· patent assignee history

2012–2015Based in Aichi, JP· patent location history

2013–2016Patents assigned to KAMIMURA NAOYA (18)· patent assignee history

2013–2016Patents assigned to YAMAZAKI RYUYA (10)· patent assignee history

2013–2016Patents assigned to NISHIYAMA HIDESHI (8)· patent assignee history

2021Based in Nagoya-shi, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BROTHER IND LTD	175	2004–2021
ITABASHI NAOself	65	2012–2016
KAMIMURA NAOYA	18	2013–2016
YAMAZAKI RYUYA	10	2013–2016
NISHIYAMA HIDESHI	8	2013–2016

Locations

Location	Patents	Span
Nagoya, JP	172	2004–2021
Aichi, JP	4	2012–2015
Nagoya-shi, JP	2	2021