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Inventor

Ryuta Takeichi

Inventor
Kanagawa, JP

Overview

27→
Patents
2000–2012
Patent span
Physics
Primary field (CPC G)

Patents· 27 as inventor

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

G03Gprimary
G03GElectrography77%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests23%
PatentTitleYear
8,306,469'Cleaning apparatus for removing toner adhered onto endless belt'20128,195,070'Developer container, developer supplying device, and image forming apparatus'20128,005,406'Developer container, developer supplying device, and image forming apparatus'20117,835,673'Developer container, developer supplying device, and image forming apparatus'20107,697,870'Developer container, developer supplying device, and image forming apparatus'20107,519,317'Developer container, developer supplying device, and image forming apparatus'20097,480,476'Developer container, developer supplying device, and image forming apparatus'20097,421,239'Cleaning apparatus for removing toner adhered onto endless belt'20087,398,038'Image forming apparatus using a toner container and a process cartridge'20087,321,744'Developer container, developer supplying device, and image forming apparatus'20087,277,667'Endless belt device and image forming apparatus using the device'20077,221,887'Image forming apparatus that recovers waste toner inside thereof'20077,212,767'Image forming apparatus and process cartridge removably mounted thereto'20077,153,621'Electrophotographic photoreceptor and image forming apparatus using the photoreceptor'20067,136,610'Image forming apparatus using installable process cartridge, method of positioning process cartridge, and process cartridge itself'20067,076,192'Powder conveying device and image forming apparatus using the same'20067,024,133'Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself'20066,706,459'Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the same'20046,697,595'Method and apparatus for forming an image with no degradation'20046,562,529'Electrophotographic drum-shaped photoconductor and image forming method and apparatus using the same'20036,558,862'Electrophotographic photoreceptor and image forming apparatus using the photoreceptor'20036,521,386'Electrophotographic photoreceptor and electrophotographic image forming method and apparatus using the photoreceptor'20036,363,237'Unit for imparting lubricity to electrophotographic photoconductor, electrophotographic image formation apparatus including the unit, and image formation method using the apparatus'20026,160,977'Image forming apparatus and device for applying a lubricant to an image'20006,118,964'Multi-functional contact-type charging unit and image transfer unit'20006,060,205'Image forming apparatus'20006,014,532'Image forming apparatus'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000–2010Patents assigned to RICOH KK (23)· patent assignee history
2000–2012Based in Kanagawa, JP· patent location history
2000–2006Based in Yokohama, JP· patent location history
2007–2012Based in Tokyo, JP· patent location history
2007Based in Toyonaka, JP· patent location history
2010–2012Patents assigned to RICOH CO LTD (4)· patent assignee history
2012Patents assigned to ISHII HIROSHI (2)· patent assignee history
2012Patents assigned to TAKEICHI RYUTA (2)· patent assignee history
2012Patents assigned to ARAI YUJI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
RICOH KK232000–2010
RICOH CO LTD42010–2012
ISHII HIROSHI22012
TAKEICHI RYUTAself22012
ARAI YUJI12012
Locations
LocationPatentsSpan
Kanagawa, JP202000–2012
Tokyo, JP32007–2012
Yokohama, JP32000–2006
Toyonaka, JP12007