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Inventor

Osamu Naruse

Inventor
Yokohama, JP

Overview

34→
Patents
1984–2015
Patent span
Physics
Primary field (CPC G)

Patents· 34 as inventor

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

G03Gprimary
G03GElectrography74%
B41JTypewriters20%
G01NInvestigating or analysing materials by determining their chemical or physical properties3%
Y10TTechnical subjects covered by former us classification3%
PatentTitleYear
8,948,647'Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities'20158,731,431'Belt device and image forming apparatus incorporating same having a cleaning device which cleans utilizing different polarities'20148,600,256'Cleaning device and image forming apparatus including same'20138,548,350'Cleaning device and image forming apparatus'20138,437,657'Cleaning apparatus and image forming apparatus'20138,433,213'Cleaning device and image forming apparatus'20138,326,174'Cleaning unit for an electrophotographic image forming apparatus having a polarity control member'20128,280,295'Cleaning device, image forming apparatus including the device, and process cartridge including the device'20128,190,077'Cleaning device and image forming apparatus'20128,041,281'Cleaning device, image forming apparatus, and process cartridge'20118,027,628'Cleaning device, process cartridge, and image forming apparatus'20118,019,268'Polarity controlling device, and cleaner and image forming apparatus using the polarity controlling device'20117,929,897'Cleaning unit, process cartridge, and image forming apparatus using the same'20117,903,995'Cleaning device, image forming apparatus, and process cartridge'20117,817,954'Cleaning unit, image carrier unit including same, and image forming apparatus including same'20107,809,321'Cleaning device, process cartridge and image forming apparatus'20107,620,357'Image forming apparatus with obtuse-edge cleaning blade'20097,610,008'Cleaning device, and process unit and image forming apparatus including the cleaning device'20097,415,236'Cleaning unit, process cartridge, and image-forming apparatus'20087,415,238'Cleaning device, process cartridge, and image forming apparatus that include a blade that is pressed against a surface of a rotating member at a surface pressure of 2.0 MPa or more'20087,369,807'Cleaner, and process cartridge and image forming apparatus using the cleaner'20087,184,699'Cleaning blade for image formation apparatus'20077,123,872'Cleaning device and method, image forming apparatus, and process cartridge'20067,062,212'Cleaning apparatus, image forming apparatus, and process cartridge'20066,987,944'Cleaning device and image forming apparatus using the cleaning device'20066,799,012'Cleaning device and image forming apparatus using the same'20045,818,482'Ink jet printing head'19985,270,740'Ink jet head'19935,260,723'Liquid jet recording head'19935,146,236'Ink jet record apparatus'19924,847,631'Charge and deflection control type ink jet printer'19894,800,398'Ink-jet printer with an encased printer head unit'19894,677,845'Device for detecting viscosity of liquid'19874,429,317'Ink ejection head'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984–2010Patents assigned to RICOH KK (20)· patent assignee history
1984–1987Based in Hatano, JP· patent location history
1989–2015Based in Yokohama, JP· patent location history
1993–2013Based in Kanagawa, JP· patent location history
2011–2015Patents assigned to RICOH CO LTD (14)· patent assignee history
2012–2015Patents assigned to NARUSE OSAMU (9)· patent assignee history
2012–2015Patents assigned to SUGIMOTO NAOMI (9)· patent assignee history
2012–2015Patents assigned to SUGIURA KENJI (9)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK201984–2010
RICOH CO LTD142011–2015
NARUSE OSAMUself92012–2015
SUGIMOTO NAOMI92012–2015
SUGIURA KENJI92012–2015
Locations
LocationPatentsSpan
Yokohama, JP191989–2015
Kanagawa, JP131993–2013
Hatano, JP21984–1987