Inventor

Takaaki Tawada

Inventor

Kanagawa, JP

Overview

1996–2018

Patent span

Physics

Primary field (CPC G)

Patents· 40 as inventor

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

G03Gprimary

G03GElectrography84%

B08BCleaning in general4%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form4%

LOC164%

A47LDomestic washing or cleaning2%

PatentTitleYear

10,042,315Blade and image forming apparatus and cleaning device incorporating same2018 10,031,466Cleaning blade, image forming apparatus, and process cartridge2018 9,977,396Blade and image forming apparatus incorporating same2018 9,904,233'Blade, cleaning device, and image forming apparatus incorporating same'2018 9,798,284'Blade and image forming apparatus incorporating same'2017 9,529,317'Blade and image forming apparatus incorporating same'2016 9,436,117'Image forming apparatus configured to modify a reference voltage correction amount'2016 9,329,519'Charging roller, charging device and image forming apparatus incorporating same, and method of calculating resistance of charging roller'2016 9,310,751'Blade member, image forming apparatus and process cartridge'2016 9,310,750'Image forming apparatus and process cartridge therefor'2016 9,170,557'Cleaning blade, image forming apparatus, and process cartridge'2015 9,081,353'Cleaner, and process cartridge and image forming apparatus using the cleaner'2015 8,577,274'Image forming apparatus including a lubricant applying device configured to apply lubricant to an image carrier'2013 8,494,428'Lubricant applicator, process unit including the lubricant applicator, transfer unit including the lubricant applicator, and image forming apparatus including the process unit or the transfer unit'2013 8,428,488'Charging device, process cartridge, image forming apparatus, and toner'2013 8,204,400'Charging device capable of efficiently charging image carrier'2012 8,190,078'Toner conveyance device and image forming apparatus incorporating same'2012 8,000,627'Charging device, process cartridge, image forming apparatus, and toner'2011 7,885,595'Lubricant applicator, process cartridge including same, and image forming apparatus including same'2011 7,826,786'Image forming apparatus, lubricant applying device, transfer device, process cartridge, and toner'2010 7,680,429'Charging device including charging roller and cleaning roller'2010 7,630,679'Image forming apparatus, toner container, and process cartridge'2009 7,542,712'Lubricant applicator, and image forming apparatus and process cartridge using the lubricant applicator, and method for assembling the process cartridge'2009 7,539,451'Image forming apparatus and toner'2009 7,496,323'Lubricant applying unit, process cartridge, and image forming apparatus'2009 7,477,862'Charged device, cleaning device, process cartridge, toner, and image-forming device that uses these'2009 7,430,377'Image forming apparatus and process cartridge having a detachable unit body having a lubricant applying unit and image carrier mounted thereon'2008 7,391,991'Process cartridge and image forming apparatus'2008 7,373,092'Method and apparatus for image forming capable of effectively collecting waste toner'2008 7,313,347'Cleaning device, process cartridge, image forming apparatus and toner'2007 7,292,816'Method and apparatus for electrophotographic image forming capable of effectively removing residual toner, a cleaning mechanism used therein, a process cartridge including the cleaning mechanism used in the apparatus, and toner used in the apparatus'2007 7,209,698'Method and apparatus for image forming capable of using minuscule spherical particles of toner, a process cartridge in use for the apparatus and a toner used in the image forming for obtaining an image with a high thin line reproducibility'2007 7,149,465'Cleaning unit, process cartridge, image forming apparatus, and toner'2006 7,106,991'Process cartridge smoothly and stably attached to and detached from an image forming apparatus, and an image forming apparatus including the process cartridge'2006 7,035,582'Image forming apparatus and process cartridge including lubricant applying device that prevents waste of lubricant'2006 D0468345'Toner cartridge'2003 D0418862'Toner cartridge'2000 5,610,691'Image forming apparatus having a contact charging member and a cleaning member'1997 5,596,395'Image forming apparatus and its control system having a single device for moving a charging member and a transfer member'1997 5,572,293'Method of and system for cleaning a charge inducing member'1996

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1996–2010Patents assigned to RICOH KK (20)· patent assignee history

1996–2018Based in Kanagawa, JP· patent location history

1997–2012Based in Yokohama, JP· patent location history

2011–2018Patents assigned to RICOH CO LTD (19)· patent assignee history

2012–2018Patents assigned to TAWADA TAKAAKI (17)· patent assignee history

2015–2018Patents assigned to WATANABE KAZUHIKO (12)· patent assignee history

2015–2018Patents assigned to KIKUCHI HISASHI (9)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
RICOH KK	20	1996–2010
RICOH CO LTD	19	2011–2018
TAWADA TAKAAKIself	17	2012–2018
WATANABE KAZUHIKO	12	2015–2018
KIKUCHI HISASHI	9	2015–2018

Locations

Location	Patents	Span
Kanagawa, JP	26	1996–2018
Yokohama, JP	14	1997–2012