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Patents Grants
last 30 patents
Information
Patent Grant
Replaceable unit, developing unit, image forming unit, and image fo...
Patent number
10,466,619
Issue date
Nov 5, 2019
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner container, image forming unit including the toner container,...
Patent number
10,274,866
Issue date
Apr 30, 2019
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer storage body, image forming unit and image forming apparatus
Patent number
9,448,530
Issue date
Sep 20, 2016
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming unit and image forming apparatus
Patent number
9,223,249
Issue date
Dec 29, 2015
Oki Data Corporation
Shingo Shimada
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming unit and image forming apparatus
Patent number
9,217,952
Issue date
Dec 22, 2015
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming unit and image forming apparatus that incorporates th...
Patent number
9,152,125
Issue date
Oct 6, 2015
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer storage container, image forming unit and image forming a...
Patent number
8,983,342
Issue date
Mar 17, 2015
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming unit having agitating portion and image forming appar...
Patent number
8,712,294
Issue date
Apr 29, 2014
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming unit and image forming apparatus
Patent number
7,957,682
Issue date
Jun 7, 2011
Oki Data Corporation
Tetsu Koyama
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Developing device and image forming apparatus
Patent number
7,917,059
Issue date
Mar 29, 2011
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device
Patent number
7,522,851
Issue date
Apr 21, 2009
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device and image forming apparatus
Patent number
7,437,105
Issue date
Oct 14, 2008
Oki Data Corporation
Tetsu Koyama
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Image recording apparatus
Patent number
7,400,837
Issue date
Jul 15, 2008
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,313,356
Issue date
Dec 25, 2007
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge
Patent number
D546873
Issue date
Jul 17, 2007
Oki Data Corporation
Shinichi Otani
D18 - Printing and office machinery
Information
Patent Grant
Image forming apparatus with mechanism to control toner replenishment
Patent number
7,187,876
Issue date
Mar 6, 2007
Oki Data Corporation
Junichi Ito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image drum cartridge
Patent number
D529076
Issue date
Sep 26, 2006
Oki Data Corporation
Atsushi Kobayashi
D18 - Printing and office machinery
Information
Patent Grant
Toner container, print process cartridge and image forming apparatus
Patent number
6,934,490
Issue date
Aug 23, 2005
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image drum cartridge
Patent number
D501020
Issue date
Jan 18, 2005
Oki Data Corporation
Shinichi Otani
D18 - Printing and office machinery
Information
Patent Grant
Toner cartridge
Patent number
D491602
Issue date
Jun 15, 2004
Oki Data Corporation
Tetsu Koyama
D18 - Printing and office machinery
Information
Patent Grant
Developing device having means to remove developer from a developer...
Patent number
6,711,371
Issue date
Mar 23, 2004
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing unit having an opening allowing toner to fall directly o...
Patent number
6,560,430
Issue date
May 6, 2003
Oki Data Corporation
Eisaku Muto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
REPLACEABLE UNIT, DEVELOPING UNIT, IMAGE FORMING UNIT, AND IMAGE FO...
Publication number
20180275560
Publication date
Sep 27, 2018
Oki Data Corporation
Tetsu KOYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER CONTAINER, IMAGE FORMING UNIT, AND IMAGE FORMING APPARATUS
Publication number
20180088490
Publication date
Mar 29, 2018
Oki Data Corporation
Tetsu KOYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER STORAGE BODY, IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS
Publication number
20160274533
Publication date
Sep 22, 2016
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS
Publication number
20150147097
Publication date
May 28, 2015
Oki Data Corporation
Shingo SHIMADA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS THAT INCORPORATES TH...
Publication number
20150003867
Publication date
Jan 1, 2015
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS
Publication number
20130223856
Publication date
Aug 29, 2013
Oki Data Corporation
Tetsu KOYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER STORAGE CONTAINER, IMAGE FORMING UNIT AND IMAGE FORMING A...
Publication number
20130164041
Publication date
Jun 27, 2013
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING UNIT AND IMAGE FORMING APPARATUS
Publication number
20120093541
Publication date
Apr 19, 2012
Oki Data Corporation
Tetsu KOYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming unit and image forming apparatus
Publication number
20090010689
Publication date
Jan 8, 2009
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developing device and image forming apparatus
Publication number
20080205932
Publication date
Aug 28, 2008
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20070031168
Publication date
Feb 8, 2007
Oki Data Corporation
Tetsu KOYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image recording apparatus
Publication number
20060051110
Publication date
Mar 9, 2006
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developing device
Publication number
20050196184
Publication date
Sep 8, 2005
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20050117919
Publication date
Jun 2, 2005
Junichi Ito
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner container, print process cartridge and image forming apparatus
Publication number
20040047651
Publication date
Mar 11, 2004
Oki Data Corporation
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developing device
Publication number
20020159796
Publication date
Oct 31, 2002
Tetsu Koyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developing unit
Publication number
20020041778
Publication date
Apr 11, 2002
Oki Data Corporation
Eisaku Muto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY