Inventor

Yasuyuki Ishiguro

Inventor

Osaka, JP

Overview

1988–2021

Patent span

Physics

Primary field (CPC G)

Patents· 55 as inventor

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

G03Gprimary

G03GElectrography80%

H04NPictorial communication, e.g. television5%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for2%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables2%

B82YSpecific uses or applications of nanostructures2%

G06FElectric digital data processing2%

G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial or supervisory purposes2%

H04LTransmission of digital information, e.g. telegraphic communication2%

LOC162%

PatentTitleYear

10,901,724Software update system for mobile body using vehicle-mounted gateway apparatus2021 10,466,624Toner cartridge and image forming apparatus2019 9,992,369Image forming apparatus having display section displaying environmental certification information during startup and being foldable into a generally flush accommodated state2018 9,291,988'Image forming apparatus including cartridge position detector'2016 9,152,967'Image forming apparatus, consumables ordering system and consumables ordering method'2015 8,730,494'Image forming apparatus including display device'2014 8,731,441'Charging roller and image forming apparatus'2014 8,724,129'Image forming apparatus, system for ordering optional device, and method for ordering optional device'2014 8,532,523'Toner cartridge having a toner flowing-out preventing member and image forming apparatus using the same'2013 8,417,160'Toner cartridge including a toner flowing-out preventing valve'2013 8,412,077'Developing device and image forming apparatus using the same'2013 8,270,882'Developing device and image forming apparatus using the same'2012 8,238,797'Toner cartridge and image forming apparatus using the same'2012 8,099,014'Image forming apparatus'2012 8,095,049'Toner cartridge and image forming apparatus using the same'2012 7,925,182'Image forming apparatus'2011 7,860,432'Toner conveyance unit and image forming apparatus'2010 7,805,096'Toner conveying device, toner supply device and image forming apparatus using these'2010 7,756,450'Toner transport device and image forming apparatus'2010 7,627,274'Toner conveying device, toner supply device and image forming apparatus using these'2009 7,542,704'Toner carrier apparatus, toner feeding apparatus, and image forming apparatus'2009 7,526,236'Waste developer collecting device, image forming apparatus, and waste developer collecting method'2009 7,505,711'Waste developer collecting device and image forming apparatus provided therewith'2009 7,502,576'Development apparatus for mixing recycled developer with toner in a toner supply path and image forming apparatus having same'2009 7,440,717'Developing apparatus and image forming apparatus with toner supply portion opening/closing mechanism'2008 7,395,015'Toner transport device, toner supply device, and image forming apparatus'2008 7,283,755'Remaining toner detection apparatus and image forming apparatus provided with same'2007 7,263,317'Particle discharge apparatus and image forming apparatus'2007 7,177,577'Particles supply apparatus and image forming apparatus'2007 7,020,416'Image forming apparatus with arrangement for controlling assembly order'2006 6,853,821'Image forming device and toner device'2005 6,792,217'Use status detecting mechanism and image-producing unit'2004 6,741,822'Image forming apparatus with members for holding a cartridge'2004 D0462712'Toner cartridge'2002 6,421,517'Toner supply device with rotatable agitating element'2002 6,415,126'Developing unit with agitator and conveying sheet for toner'2002 6,385,422'Developing unit equipped with a toner replenishing device configured with a conveying sheet and rotator'2002 6,360,066'Developing apparatus having stirring shafts with elliptic stirring vanes'2002 6,347,207'Developing unit and toner replenishing device with conveying apparatus'2002 6,272,298'Developer cartridge'2001 6,226,490'Toner replenishing apparatus and image forming apparatus equipped with same'2001 6,041,207'Apparatus for controlling the movement of magnetized developer material in a latent, electrostatic image developing deviced'2000 6,035,168'Developing device having a reduced width in the horizontal direction'2000 6,009,295'Developing apparatus'1999 5,978,632'Toner cartridge'1999 5,671,476'Image forming machine with cleaning drum brush driven by rotating drum'1997 5,621,507'Electrostatic latent image-developing device and toner cartridge used therefor'1997 RE034384'Cleaning unit in electrophotographic copier'1993 5,177,533'Image forming apparatus'1993 5,142,335'Electrostatic latent image-developing device and toner cartridge used therefor'1992 5,136,341'Image forming apparatus having means for coordinating the input and discharge of copy paper'1992 4,975,740'Page entering apparatus for electrophotographic copying machine'1990 4,860,056'Sealable toner recovery box for an image forming machine'1989 4,806,981'Cleaning unit in electrophotographic copier'1989 4,730,205'Toner collecting apparatus'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988–1997Patents assigned to MITA INDUSTRIAL CO LTD (8)· patent assignee history

1988–2016Based in Osaka, JP· patent location history

1999–2019Patents assigned to SHARP KK (44)· patent assignee history

1999–2012Based in Higashiosaka, JP· patent location history

2012–2015Patents assigned to ISHIGURO YASUYUKI (11)· patent assignee history

2012–2013Patents assigned to MIHARA KOICHI (6)· patent assignee history

2014–2015Patents assigned to NAGAHAMA HITOSHI (4)· patent assignee history

2018–2019Based in Sakai, JP· patent location history

2021Based in Suginami-ku, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
SHARP KK	44	1999–2019
ISHIGURO YASUYUKIself	11	2012–2015
MITA INDUSTRIAL CO LTD	8	1988–1997
MIHARA KOICHI	6	2012–2013
NAGAHAMA HITOSHI	4	2014–2015

Locations

Location	Patents	Span
Osaka, JP	26	1988–2016
Higashiosaka, JP	26	1999–2012
Sakai, JP	2	2018–2019
Suginami-ku, JP	1	2021