Inventor

Shinichi Kuramoto

Inventor

Numazu, JP

Overview

1983–2021

Patent span

Physics

Primary field (CPC G)

Patents· 72 as inventor

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

G03Gprimary

G03GElectrography79%

B41MPrinting, duplicating, marking, or copying processes8%

C08FMacromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds4%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests4%

Y10TTechnical subjects covered by former us classification2%

B08BCleaning in general1%

B41JTypewriters1%

PatentTitleYear

10,996,588Powder transport apparatus2021 10,921,733Developing device and image forming apparatus having developer replenishing blade2021 10,908,528Developing device and image forming apparatus2021 10,877,400Developing device and image forming apparatus2020 10,739,699Developing device having a delivery unit to transport collected developer and image forming apparatus having the same2020 10,613,454Developing device and image forming apparatus with exhaust port for discharging air2020 10,496,012Developing device and image forming apparatus2019 10,496,010Developing device and image forming apparatus2019 10,162,284Developing device and image forming apparatus2018 10,088,771Developing device and image forming apparatus2018 9,804,524'Developing device and image forming apparatus'2017 9,733,590'Developing device and image forming apparatus including the same'2017 9,423,721'Developing device, visible-image-forming device, and image forming apparatus'2016 9,244,376'Developing device'2016 9,195,168'Developing device and image forming apparatus'2015 8,923,733'Developer supplying device and image forming apparatus'2014 8,811,863'Developing device and image forming apparatus'2014 8,660,470'Developing device and image forming apparatus including the same'2014 8,594,536'Developing unit and image-forming apparatus'2013 8,548,364'Developing device and image-forming apparatus'2013 8,447,216'Development unit, image forming apparatus, and gap adjusting method'2013 8,178,273'Carrier and manufacturing method thereof, developer, process cartridge, image forming apparatus, and image forming method'2012 8,034,521'Toner for developing electrostatic charge image, image forming method and image forming apparatus'2011 8,029,961'Toner for developing latent electrostatic image, method for producing the same and apparatus for producing the same, and developer, toner container, process cartridge, image forming method and image forming apparatus'2011 7,986,899'Development unit, process cartridge and image forming apparatus'2011 7,903,988'Image forming apparatus capable of detecting ghost image'2011 7,280,790'Image forming apparatus'2007 7,239,834'Transport belt and image formation device using the same'2007 7,232,632'Color toners and image forming method using the color toners'2007 7,217,485'Toner for electrophotography, and image fixing process, image forming process, image forming apparatus and process cartridge using the same'2007 7,163,774'Toner for forming image, method for developing electrostatic latent image, method for fixing toner image, image forming method and process cartridge using the toner'2007 6,970,674'Belt transporting device and image forming apparatus using the same'2005 6,853,825'Image forming apparatus including image transporting belt and rotary roll'2005 6,737,210'Image formation method, electrophotographic toners, and printed matter'2004 6,625,410'Image forming apparatus'2003 6,432,589'Image formation method, electrophotographic toners, and printed matter'2002 6,416,914'Image formation process and developer used therein'2002 6,403,275'Electrophotographic toner, and image forming method and apparatus using the toner'2002 6,375,311'Image forming apparatus and image forming method using an extrusion opening and shutter for releasing recording solution'2002 RE037645'Method and apparatus for removing image forming substance from image holding member forming processing situation mark'2002 6,274,282'Full-color electrophotographic image formation method, color toners for use in the same, and color image formed by use of the color toners'2001 6,268,098'Full-color electrophotographic image formation method, color toners for use in the same, and color image formed by use of the color toners'2001 6,255,028'Electrophotographic toner and image forming method using the toner'2001 6,248,488'Image formation method using color toners'2001 RE036963'Method and apparatus for regenerating image holding member'2000 6,095,164'Method and apparatus for removing image forming substance from image holding member'2000 6,047,758'Method for repeatedly using image holding member'2000 5,998,073'Dry toner for electrophotography'1999 5,994,016'Dry developer for developing electrostatic latent image'1999 5,887,233'Photographic developing apparatus and electrifying apparatus'1999 5,851,716'Electrophotographic image forming method and toner composition used therefor'1998 5,759,733'Liquid developer for electrostatic electrophotography'1998 5,753,400'Method for repeatedly using image holding member'1998 5,750,299'Method of forming colored image by use of inorganic toner, inorganic toner for developing latent electrostatic image, and colored toner image bearing image transfer medium'1998 5,605,777'Method and apparatus for regenerating image holding member'1997 5,574,538'Method and apparatus for removing image forming substance from image holding member forming processing situation mark'1996 5,554,478'Electrophotographic dry toner'1996 5,547,793'Method for using image support regeneratively and tool for forming image on image support'1996 5,474,869'Toner and method of developing'1995 5,403,690'Developer for developing latent electrostatic images'1995 5,370,959'Image formation method'1994 5,328,794'Fluorine-containing graft copolymer and toner using the same'1994 5,189,102'Method for producing a vinyl resin using a silicon oil solvent'1993 5,169,739'Liquid developer for image fixing method using heat application rollers'1992 5,061,587'Toner for electrophotography including fluorine contained graft copolymer'1991 5,026,621'Toner for electrophotography'1991 4,957,842'Liquid developer for electrostatic latent images using flushed pigments'1990 4,925,763'Developer for electrophotography containing ionomer resin'1990 4,860,050'Developing replenisher material for use in image forming device'1989 4,764,447'Non-aqueous type resin dispersion and electrophotographic developer containing said resin'1988 4,618,558'Liquid developer for use in electrostatic photography'1986 4,388,395'Liquid developer for use in electrophotography'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2007Patents assigned to RICOH KK (39)· patent assignee history

1983–2012Based in Numazu, JP· patent location history

1999–2021Patents assigned to FUJI XEROX CO LTD (30)· patent assignee history

1999–2021Based in Kanagawa, JP· patent location history

1999–2007Based in Shizuoka, JP· patent location history

2002–2004Patents assigned to FUJITSU LTD (3)· patent assignee history

2002Based in Nakai-machi, JP· patent location history

2003–2013Based in Ebina, JP· patent location history

2012–2014Patents assigned to KURAMOTO SHINICHI (6)· patent assignee history

2013–2014Patents assigned to INABA SHIGERU (3)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	39	1983–2007
FUJI XEROX CO LTD	30	1999–2021
KURAMOTO SHINICHIself	6	2012–2014
FUJITSU LTD	3	2002–2004
INABA SHIGERU	3	2013–2014

Locations

Location	Patents	Span
Numazu, JP	33	1983–2012
Kanagawa, JP	25	1999–2021
Shizuoka, JP	9	1999–2007
Ebina, JP	4	2003–2013
Nakai-machi, JP	1	2002