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Inventor

Ryuji Yoshida

Inventor
Kanagawa, JP

Overview

38→
Patents
2004–2020
Patent span
Performing operations
Primary field (CPC B)

Patents· 38 as inventor

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

G03Gprimary
G03GElectrography33%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables12%
B31FMechanical working or deformation of paper, cardboard or material worked in a manner analogous to paper6%
B42BPermanently attaching together sheets, quires or signatures or permanently attaching objects thereto6%
B42CBookbinding5%
Y10TTechnical subjects covered by former us classification5%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
B41JTypewriters3%
B42FSheets temporarily attached together3%
B29CShaping or joining of plastics2%
PatentTitleYear
10,864,746Liquid circulating apparatus and liquid ejecting apparatus202010,837,798Stroke sensor202010,800,180Liquid circulation device and liquid discharge apparatus202010,564,325Protective film-attached functional sheet202010,179,452Liquid discharge head, liquid discharge device, and liquid discharge apparatus20199,618,658'Functional sheet with protective films'20179,513,574'Image forming apparatus'20169,440,478'Paper binding device, paper processing apparatus, image forming apparatus, and image forming system'20169,415,560'Sheet processing apparatus, image forming system, and image forming apparatus'20169,316,950'Development device, process cartridge, image forming apparatus incorporating same, and developer amount adjustment method therefor'20169,315,356'Sheet processing apparatus having binding unit and image forming system thereof'20169,298,125'Image forming apparatus and image forming method'20169,254,621'Method for attaching crimping members, sheet binding device, and image forming apparatus'20169,250,593'Image forming apparatus and image density control method employed by the image forming apparatus'20169,244,374'Image forming apparatus'20169,223,261'Image forming apparatus with fixing unit adapted to fix toner including pressure-induced phase transition toner'20159,162,839'Sheet processing apparatus and image forming system'20159,096,091'Postprocessing apparatus, and image forming apparatus and image forming system including the postprocessing apparatus'20159,091,969'Electrophotographic image forming apparatus'20159,090,051'Sheet binding device, sheet processing apparatus, image forming apparatus, image forming system, and sheet binding method'20159,042,748'Image forming apparatus'20159,042,778'Powder refilling device, process cartridge and image including same, and powder refilling method'20159,026,007'Image forming apparatus'20159,010,753'Sheet processing apparatus and image forming system'20158,927,461'Substrate for fabricating superconductive film, superconductive wires and manufacturing method thereof'20158,909,112'Image forming apparatus having support members with predetermined electric potentials'20148,840,103'Sheet conveying device and image forming apparatus'20148,818,255'Image forming apparatus with fixing liquid applicator'20148,774,694'Image forming apparatus including sealed fixing liquid applying section'20148,761,651'Image forming apparatus'20148,483,598'Electrophotographic image forming method and apparatus with a cover film supplying device'20138,320,799'Recycling image forming apparatus'20128,199,381'Pasting apparatus and image forming apparatus'20128,180,246'Image forming apparatus'20128,010,005'Image forming apparatus'20117,997,320'Sheet cutter and image forming apparatus including the sheet cutter'20117,909,081'Sheet laminator, image forming apparatus, and sheet laminating method'20116,775,141'Heat dissipation structure for use in combination with electronic circuit board'2004

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2011–2020Patents assigned to RICOH CO LTD (33)· patent assignee history
2011–2020Based in Kanagawa, JP· patent location history
2011–2014Based in Yokohama, JP· patent location history
2012–2020Patents assigned to YOSHIDA RYUJI (31)· patent assignee history
2012–2016Patents assigned to NAKAGAWA YOSHINORI (12)· patent assignee history
2012–2016Patents assigned to TAKAHASHI TOMOKO (11)· patent assignee history
2014–2016Patents assigned to MORINAGA TAKUYA (9)· patent assignee history
2017Based in Saitama, JP· patent location history
2020Based in Niigata, JP· patent location history
2020Based in Tokorozawa, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD332011–2020
YOSHIDA RYUJIself312012–2020
NAKAGAWA YOSHINORI122012–2016
TAKAHASHI TOMOKO112012–2016
MORINAGA TAKUYA92014–2016
Locations
LocationPatentsSpan
Kanagawa, JP262011–2020
Yokohama, JP62011–2014
Niigata, JP12020
Tokorozawa, JP12020
Saitama, JP12017