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Inventor

Ken Murooka

Inventor
Mishima, JP

Overview

35→
Patents
1992–2021
Patent span
Physics
Primary field (CPC G)

Patents· 35 as inventor

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

G03Gprimary
G03GElectrography54%
G03FPhotomechanical production of textured or patterned surfaces, e.g. for printing, for processing of semiconductor devices8%
B41JTypewriters6%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%
F04DNon-positive-displacement pumps6%
B82YSpecific uses or applications of nanostructures4%
G21KHandling of particles or ionising radiation not otherwise provided for4%
H01JElectric discharge tubes or discharge lamps4%
H05BElectric heating4%
H04NPictorial communication, e.g. television2%
PatentTitleYear
10,955,774Image forming apparatus202110,551,774Image forming apparatus with guide member movable with repect to direction perpendiclar to recording material surface202010,481,552Fixing device having a perforated duct201910,031,476Image forming apparatus having fixing device and blower for the fixing device20189,904,222'Image forming apparatus with plurality of ribs on guide to fixing nip'20189,557,702'Image forming apparatus with curl correcting unit'20179,429,886'Image forming apparatus having fixing device and blower for the fixing device'20169,400,462'Image forming apparatus'20169,395,674'Curl correction apparatus, sheet conveying apparatus, and image forming apparatus'20169,280,101'Image forming apparatus with lower and upper guide members'20169,081,358'Fixing apparatus, and image forming apparatus equipped with fixing apparatus'20159,075,386'Image forming apparatus with a curl correcting unit'20158,909,088'Fixing apparatus and image forming apparatus equipped with an air duct for guiding air'20148,855,516'Image forming apparatus including air blowing member configured to blow air toward a pressing member forming a nip portion with a fixing member'20148,447,208'Image forming apparatus'20138,190,057'Image forming apparatus having a main assembly, a cartridge detachably mountable to the main assembly, and a fixing unit detachably mountable to the main assembly'20127,194,222'Image forming apparatus which cools an image forming cartridge'20077,177,566'Main frame construction for an image forming apparatus'20076,909,494'Image forming apparatus'20056,583,389'Image heating apparatus, heater for heating image and manufacturing method thereof'20036,518,546'Heater having electronically conductive board and image heating apparatus using heater'20036,404,481'Adaptive lithography membrane masks'20026,248,508'Manufacturing a circuit element'20016,084,622'Frame structure and an image forming apparatus using such a frame structure'20006,028,317'Charged particle beam optical element charged particle beam exposure apparatus and method of adjusting the same'20005,923,034'Pattern transfer mask, mask inspection method and a mask inspection apparatus'19995,761,574'Image forming apparatus'19985,634,178'Gear unit, image forming apparatus and gear unit mounting method'19975,621,451'Image forming apparatus'19975,561,496'Image forming apparatus, assembling method of image forming apparatus, and mounting method of outer casing'19965,559,581'Image forming apparatus with helical gear drive train'19965,537,195'Sheet-accommodating cassette with main container and sub container'19965,290,021'Sheet feeding apparatus'19945,291,536'X-ray mask, method for fabricating the same, and pattern formation method'19945,166,962'X-ray mask, method of manufacturing the same, and exposure method using the same'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–2001Patents assigned to TOSHIBA KK (5)· patent assignee history
1992–2018Based in Yokohama, JP· patent location history
1994–2021Patents assigned to CANON KK (29)· patent assignee history
1996–2000Based in Toride, JP· patent location history
1996–1997Based in Tokyo, JP· patent location history
2002Patents assigned to MASSACHUSETTS INST TECHNOLOGY (1)· patent assignee history
2005–2007Based in Shizuoka, JP· patent location history
2012–2014Patents assigned to MUROOKA KEN (3)· patent assignee history
2012–2013Patents assigned to FUJITA KEISUKE (2)· patent assignee history
2012–2021Based in Mishima, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CANON KK291994–2021
TOSHIBA KK51992–2001
MUROOKA KENself32012–2014
FUJITA KEISUKE22012–2013
MASSACHUSETTS INST TECHNOLOGY12002
Locations
LocationPatentsSpan
Mishima, JP152012–2021
Yokohama, JP81992–2018
Toride, JP41996–2000
Shizuoka, JP32005–2007
Tokyo, JP21996–1997