Inventor

Kazuhisa Sudo

Inventor

Kanagawa, JP

Overview

1995–2013

Patent span

Physics

Primary field (CPC G)

Patents· 52 as inventor

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

G03Gprimary

G03GElectrography68%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%

B65HHandling thin or filamentary material, e.g. sheets, webs, cables5%

Y10TTechnical subjects covered by former us classification4%

B05BSpraying apparatus1%

B26DCutting1%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form1%

PatentTitleYear

8,483,598'Electrophotographic image forming method and apparatus with a cover film supplying device'2013 8,422,897'Image forming apparatus'2013 8,385,793'Image forming apparatus preventing gaps between a conveyor belt and transfer sheet'2013 8,315,545'Image forming apparatus utilizing both a transfer belt and a direct transfer member'2012 8,249,468'Image forming apparatus'2012 8,199,381'Pasting apparatus and image forming apparatus'2012 8,180,246'Image forming apparatus'2012 8,068,770'Toner cartridge, image forming apparatus, method of recycling toner cartridge'2011 8,023,877'Image forming apparatus capable of forming glossy color image'2011 8,010,005'Image forming apparatus'2011 7,997,320'Sheet cutter and image forming apparatus including the sheet cutter'2011 7,962,069'Toner container, image forming apparatus, method of recycling toner container'2011 7,960,084'Method of preparing information recording medium'2011 7,909,081'Sheet laminator, image forming apparatus, and sheet laminating method'2011 7,883,089'Image forming apparatus'2011 7,869,746'Image forming device, powder supply device, and powder storage unit including a gas supplying unit'2011 7,865,121'Image forming apparatus and recording medium'2011 7,826,778'Powder supplying device and image forming device'2010 7,817,953'Image recording medium, sheet feeding device, and image forming apparatus'2010 7,773,918'Imaging apparatus having particle supply and collection apparatus arranged outside imaging apparatus'2010 7,587,152'Powder transport device and image forming system'2009 7,577,379'Toner container, toner supply device and image forming apparatus'2009 7,542,697'Toner supply unit and image forming apparatus'2009 7,489,892'Particle supply apparatus and imaging apparatus having a gas spouting unit for fluidizing the particles'2009 7,463,853'Particle supply apparatus, imaging apparatus, and monitoring system'2008 7,412,191'Toner container and image forming apparatus using the same'2008 7,356,290'Toner supply unit and image forming apparatus'2008 7,272,342'Image forming apparatus having a detachable cartridge including a photoconductive drum with axis shaft having a minimal rotational eccentricity, and a method of assembling the image forming apparatus'2007 7,212,773'Image forming apparatus'2007 7,209,689'Toner supply unit and image forming apparatus'2007 7,209,687'Toner container and image forming apparatus using the same'2007 7,184,691'Toner container, toner supply device and image forming apparatus'2007 7,162,188'Toner container and image forming apparatus using the same'2007 7,158,742'Toner container and image forming apparatus using the same'2007 7,130,567'Toner container and image forming apparatus using the same'2006 7,130,558'Toner supply unit and image forming apparatus'2006 7,110,704'Toner container and image forming apparatus using the same'2006 7,088,945'Toner supply unit and image forming apparatus'2006 7,043,182'Developer regulating member, developing device, electrophotographic image forming process cartridge, and image forming apparatus including the developer regulating member'2006 6,826,381'Image formation device and agent supplying device including absorber conveying by negative pressure'2004 6,813,460'Toner container and image forming apparatus using the same'2004 6,775,503'Image forming apparatus with improved capabilities for toner supply'2004 6,665,508'Toner container and image forming apparatus using the same'2003 6,628,908'Toner supply unit and image forming apparatus'2003 6,591,077'Image forming apparatus and toner container therefor'2003 6,522,855'Image forming apparatus and developing apparatus preventing uneven image density'2003 6,501,913'Container, its support structure, and image formation apparatus'2002 6,393,241'Nozzle having an end portion capable of penetrating into a toner discharging portion included in a toner container that stores powdery toner'2002 6,337,957'Image forming apparatus and developing device with improved self toner density control'2002 5,638,158'Image formation apparatus'1997 5,592,267'Image forming apparatus using fresh toner and used toner'1997 5,394,231'Image forming apparatus capable of forming an erasable image'1995

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1995–2010Patents assigned to RICOH KK (35)· patent assignee history

1995–2013Based in Kawasaki, JP· patent location history

1997–2011Based in Tokyo, JP· patent location history

2002–2013Based in Kanagawa, JP· patent location history

2002–2003Based in Saitama-shi, JP· patent location history

2011–2013Patents assigned to RICOH CO LTD (17)· patent assignee history

2011–2013Patents assigned to SUDO KAZUHISA (8)· patent assignee history

2012Patents assigned to KAWAHARA SHINICHI (3)· patent assignee history

2013Patents assigned to KAWASUMI MASANORI (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	35	1995–2010
RICOH CO LTD	17	2011–2013
SUDO KAZUHISAself	8	2011–2013
KAWAHARA SHINICHI	3	2012
KAWASUMI MASANORI	3	2013

Locations

Location	Patents	Span
Kanagawa, JP	26	2002–2013
Kawasaki, JP	19	1995–2013
Tokyo, JP	5	1997–2011
Saitama-shi, JP	2	2002–2003