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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Toner transporting method and mechanism employing a belt conveyor
Patent number
RE38978
Issue date
Feb 14, 2006
Oki Data Corporation
Shigeki Nakajima
399 - Electrophotography
Information
Patent Grant
Image drum cartridge and developing unit having a movable developin...
Patent number
6,882,811
Issue date
Apr 19, 2005
Oki Data Corporation
Masahiro Fukuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge with locking toner discharge opening
Patent number
6,496,671
Issue date
Dec 17, 2002
Oki Data Corporation
Shigeki Nakajima
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Image drum cartridge
Patent number
D462379
Issue date
Sep 3, 2002
Oki Data Corporation
Junichi Ito
D18 - Printing and office machinery
Information
Patent Grant
Compact toner cartridge with fresh and waste toner chambers
Patent number
6,363,233
Issue date
Mar 26, 2002
Oki Data Corporation
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge
Patent number
D451539
Issue date
Dec 4, 2001
Oki Data Corporation
Junichi Ito
D18 - Printing and office machinery
Information
Patent Grant
Toner cartridge
Patent number
D450752
Issue date
Nov 20, 2001
Oki Data Corporation
Junichi Ito
D18 - Printing and office machinery
Information
Patent Grant
Image drum cartridge
Patent number
D450344
Issue date
Nov 13, 2001
Oki Data Corporation
Junichi Ito
D18 - Printing and office machinery
Information
Patent Grant
Toner cartridge and drum cartridge for receiving the toner cartridg...
Patent number
6,151,472
Issue date
Nov 21, 2000
Oki Data Corporation
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge and drum cartridge for receiving the toner cartridg...
Patent number
6,134,410
Issue date
Oct 17, 2000
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Color image forming apparatus having a controller for setting print...
Patent number
6,112,037
Issue date
Aug 29, 2000
Oki Data Corporation
Masato Nagata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic printer
Patent number
6,061,537
Issue date
May 9, 2000
Oki Data Corporation
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge and toner collecting mechanism
Patent number
6,021,292
Issue date
Feb 1, 2000
Oki Data Corporation
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Color image forming apparatus having a printing mechanism selective...
Patent number
5,983,042
Issue date
Nov 9, 1999
Oki Data Corporation
Masato Nagata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Paper feeding mechanism
Patent number
5,975,518
Issue date
Nov 2, 1999
Oki Data Corporation
Takashi Wakana
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Toner recycling method and mechanism employing a belt conveyor
Patent number
5,956,556
Issue date
Sep 21, 1999
Oki Data Corporation
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Overheating prevention device for a fixing unit
Patent number
5,737,664
Issue date
Apr 7, 1998
Oki Electric Industry Co., Ltd.
Masahiro Fukuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge and drum cartridge for receiving the toner cartridg...
Patent number
5,722,019
Issue date
Feb 24, 1998
Oki Data Corporation
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge
Patent number
D389860
Issue date
Jan 27, 1998
Oki Data Corporation
Shigeki Nakajima
D18 - Printing and office machinery
Information
Patent Grant
Paper cassette and paper cassette insertion mechanism
Patent number
5,419,544
Issue date
May 30, 1995
Oki Electric Industry Co., Ltd.
Ichiro Ono
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Grant
Toner cartridge
Patent number
D356815
Issue date
Mar 28, 1995
Oki Electric Industry Co., Ltd.
Shigeki Nakajima
D18 - Printing and office machinery
Information
Patent Grant
Image drum cartridge
Patent number
D354980
Issue date
Jan 31, 1995
Oki Electric Industry Co., Ltd.
Shigeki Nakajima
D18 - Printing and office machinery
Information
Patent Grant
Electrophotographic apparatus
Patent number
5,307,134
Issue date
Apr 26, 1994
Oki Electric Industry Co., Ltd.
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic printer having a gravity driven toner recycling...
Patent number
5,289,249
Issue date
Feb 22, 1994
Oki Electric Industry Co., Ltd.
Mikio Yamamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner cartridge
Patent number
5,280,324
Issue date
Jan 18, 1994
Oki Electric Industry Co., Ltd.
Hisao Ono
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developing device including toner hopper and toner cartridge stirri...
Patent number
5,264,900
Issue date
Nov 23, 1993
Oki Electric Industry Co., Ltd.
Yoshiharu Momiyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Replaceable toner cartridge with internal stirring member, and elec...
Patent number
5,235,389
Issue date
Aug 10, 1993
Oki Electric Industry Co., Ltd.
Hiroshi Kikuchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner residual amount detecting mechanism
Patent number
5,216,462
Issue date
Jun 1, 1993
Oki Electric Industry Co., Ltd.
Shigeki Nakajima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic printing apparatus
Patent number
5,184,177
Issue date
Feb 2, 1993
Oki Electric Industry Co., Ltd.
Hiroshi Kikuchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image drum cartridge
Patent number
D332962
Issue date
Feb 2, 1993
Oki Electric Industry Co., Ltd.
Hiroshi Kikuchi
D18 - Printing and office machinery
Patents Applications
last 30 patents
Information
Patent Application
Image drum cartridge and developing unit
Publication number
20030161655
Publication date
Aug 28, 2003
Masahiro Fukuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY