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Inventor

Kenji Sengoku

Inventor
Kanagawa, JP

Overview

33→
Patents
2013–2018
Patent span
Physics
Primary field (CPC G)

Patents· 33 as inventor

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

G03Gprimary
G03GElectrography94%
B08BCleaning in general3%
B41JTypewriters3%
PatentTitleYear
9,864,307'Image forming apparatus with a controller to set transfer bias'20189,696,662'Cleaning device and image forming apparatus incorporating same'20179,519,257'Cleaning device and image forming apparatus incorporating same'20169,393,813'Image forming apparatus'20169,323,170'Image forming apparatus with a controller to set transfer bias'20169,182,698'Method of transferring image and image transferring system and image forming apparatus with same'20159,152,070'Transfer device and image forming apparatus'20159,141,039'Image forming apparatus including a cam member to separate a transfer member'20159,075,383'Image forming apparatus'20159,063,472'Image forming apparatus and belt tensioning unit'20159,057,991'Image forming apparatus'20159,037,022'Image forming apparatus, image forming system, and transfer method'20159,031,436'Image forming apparatus'20158,977,153'Image forming apparatus which uses an AC voltage and/or a DC voltage at a transfer nip depending on a surface roughness of a recording sheet'20158,948,644'Power supply module and image forming apparatus including same'20158,934,822'Transfer device and image forming apparatus'20158,929,786'Image forming apparatus, system, and method using a superimposed voltage signal and a direct voltage signal'20158,891,996'Power supply module and image forming apparatus including same'20148,892,013'Transfer device and image forming apparatus'20148,831,466'Image forming apparatus'20148,824,941'Image transfer device and image forming apparatus incorporating same'20148,811,867'Transfer device and image forming apparatus using same'20148,805,223'Image forming apparatus, image forming system, and transfer method'20148,737,865'Image forming apparatus'20148,718,500'Image forming apparatus'20148,682,231'Image forming apparatus'20148,588,641'Image forming apparatus'20138,548,345'Image forming apparatus with transfer nip adjustment function'20138,526,842'Image forming apparatus'20138,483,597'Transfer assembly and image forming apparatus using same'20138,447,198'Detector and roller arrangement for an image forming apparatus'20138,433,221'Image forming apparatus with transfer nip adjustment function'20138,417,164'Transfer device and image forming apparatus using same'2013

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2013–2018Patents assigned to RICOH CO LTD (32)· patent assignee history
2013–2018Patents assigned to SENGOKU KENJI (30)· patent assignee history
2013–2018Patents assigned to FUJITA JUNPEI (23)· patent assignee history
2013–2018Based in Kanagawa, JP· patent location history
2013–2014Based in Kawasaki, JP· patent location history
2014–2018Patents assigned to HAGA HIROYOSHI (14)· patent assignee history
2014–2018Patents assigned to OGIYAMA HIROMI (13)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH CO LTD322013–2018
SENGOKU KENJIself302013–2018
FUJITA JUNPEI232013–2018
HAGA HIROYOSHI142014–2018
OGIYAMA HIROMI132014–2018
Locations
LocationPatentsSpan
Kanagawa, JP292013–2018
Kawasaki, JP42013–2014