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Inventor

Katsumi Okamoto

Inventor
Azumino, JP

Overview

46→
Patents
1997–2020
Patent span
Physics
Primary field (CPC G)

Patents· 46 as inventor

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

G03Gprimary
G03GElectrography56%
B41JTypewriters19%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables5%
Y10TTechnical subjects covered by former us classification4%
B02CCrushing, pulverising, or disintegrating in general2%
B29BPreparation or pretreatment of the material to be shaped2%
B29LIndexing scheme associated with subclass b29c, relating to particular articles2%
G03DApparatus for processing exposed photographic materials2%
H01RElectrically-conductive connections2%
LOC152%
PatentTitleYear
10,737,897Medium discharging device and method of controlling medium discharging device20209,834,001Recording apparatus20179,150,023'Recording apparatus'20159,114,943'Medium transport device and recording device'20159,085,433'Medium transport device and recording device'20159,067,419'Recording apparatus'20158,851,665'Recording apparatus'20148,807,703'Liquid ejection apparatus'20148,807,739'Recording apparatus'20148,714,732'Liquid ejecting apparatus'20148,596,777'Liquid ejecting apparatus'20138,469,075'Coating film peeling apparatus for resin material'20138,401,443'Toner-particle bearing roller, developing device, and image forming apparatus'2013D0651624'Perforated hexagonal screen'20128,087,170'Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus'20127,974,549'Developing device and image forming apparatus'20117,885,554'Developing device, image forming apparatus, image forming system, cartridge, developing unit and photoconductor unit'20117,881,644'Developing device and image forming apparatus'20117,881,641'Developing cartridge, developing device, and image forming apparatus'20117,822,368'Container for developing agent, and image forming apparatus incorporating the same'20107,783,234'Developer cartridge, image forming apparatus, and shutter device'20107,761,037'Image formation apparatus that replenishes developer based on detected height of developer and rotating speed of developer carrier'20107,636,538'Layer-thickness restriction member, developing device, method for manufacturing restriction blade, and blade-forming mold'20097,620,348'Container for developing agent, and image forming apparatus incorporating the same'20097,565,099'Developing device and image forming apparatus having a toner-particle bearing roller with a helical groove portion'20097,539,443'Charging roller and image forming apparatus'20097,406,272'Image forming apparatus and system with attachable and detachable developer container'20087,403,734'Developing device, image forming apparatus, image forming system, and method of assembling developer supplying roller'20087,359,662'Image forming apparatus with control blade having an arcuate shape'20087,330,684'Developing device, image forming apparatus, image forming system, charging member, and method for manufacturing developing device'20087,330,681'Developing device, image forming apparatus, and image forming system'20087,324,775'Image forming apparatus having developing device with sealing members and method of manufacture'20087,257,347'Developer containing device, image forming apparatus, and image forming system with housing sections welded together by vibration welding'20077,242,872'Image forming apparatus with changeover control for development cartridges'20077,224,924'Developing device, image forming apparatus, image forming system, and method of manufacturing developing device'20077,190,920'Developing cartridge, air communication unit of developing cartridge and toner cartridge'20077,155,151'Developer carrier, developing device, image forming apparatus and computer system'20067,076,185'Developing device, image forming apparatus, computer system, and seal-assisting member'20067,068,961'Developing device, image forming apparatus, image forming system, sealing member, and method for manufacturing sealing member'20066,937,835'Developer charging unit, developing device, image-forming apparatus, and computer system'20056,892,039'Connector having a built-in memory IC mounted on a development cartridge'20056,868,247'Developing unit, developing device, image-forming apparatus, and computer system'2005D0500075'Toner cartridge'20046,823,156'Developing device, rotary developing units, image formation apparatus and a computer system with a thickness regulator member and a roller support frame'20045,729,797'Toner cartridge'19985,678,777'Flour milling machine'1997

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1997–2013Patents assigned to SATAKE ENG CO LTD (3)· patent assignee history
2004–2020Patents assigned to SEIKO EPSON CORP (42)· patent assignee history
2004–2011Based in Nagano, JP· patent location history
2009–2020Based in Azumino, JP· patent location history
2009–2013Based in Shiojiri, JP· patent location history
2012–2014Patents assigned to OKAMOTO KATSUMI (9)· patent assignee history
2012–2013Patents assigned to ARUGA TOMOHIRO (2)· patent assignee history
2012–2013Patents assigned to FURUKAWA HIDEKAZU (2)· patent assignee history
2012Based in Azamimo, JP· patent location history
2013Based in Tokyo, JP· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SEIKO EPSON CORP422004–2020
OKAMOTO KATSUMIself92012–2014
SATAKE ENG CO LTD31997–2013
ARUGA TOMOHIRO22012–2013
FURUKAWA HIDEKAZU22012–2013
Locations
LocationPatentsSpan
Azumino, JP192009–2020
Nagano, JP192004–2011
Shiojiri, JP22009–2013
Tokyo, JP12013
Azamimo, JP12012