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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
8,195,070
Issue date
Jun 5, 2012
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Toner cartridge, image forming apparatus, method of recycling toner...
Patent number
8,068,770
Issue date
Nov 29, 2011
Ricoh Company, Ltd.
Takeroh Kurenuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
8,005,406
Issue date
Aug 23, 2011
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Toner container, image forming apparatus, method of recycling toner...
Patent number
7,962,069
Issue date
Jun 14, 2011
Ricoh Company, Ltd.
Takeroh Kurenuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
7,835,673
Issue date
Nov 16, 2010
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
7,697,870
Issue date
Apr 13, 2010
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Toner container, toner supply device and image forming apparatus
Patent number
7,577,379
Issue date
Aug 18, 2009
Ricoh Company, Ltd.
Emi Kita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, process cartridge, developing unit, and im...
Patent number
7,522,850
Issue date
Apr 21, 2009
Ricoh Company, Ltd.
Kazuhito Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
7,519,317
Issue date
Apr 14, 2009
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Process cartridge including at least one replaceable member and ima...
Patent number
7,493,061
Issue date
Feb 17, 2009
Ricoh Company, Ltd.
Satoshi Hatori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
7,480,476
Issue date
Jan 20, 2009
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Image forming apparatus using a toner container and a process cartr...
Patent number
7,398,038
Issue date
Jul 8, 2008
Ricoh Company, Ltd.
Kiyonori Tsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Developer container, developer supplying device, and image forming...
Patent number
7,321,744
Issue date
Jan 22, 2008
Ricoh Company, Ltd.
Hiroshi Hosokawa
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Image forming apparatus and process cartridge removably mounted the...
Patent number
7,212,767
Issue date
May 1, 2007
Ricoh Company, Ltd.
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner container, toner supply device and image forming apparatus
Patent number
7,184,691
Issue date
Feb 27, 2007
Ricoh Company, Ltd.
Emi Kita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, process cartridge, developing unit, and im...
Patent number
7,158,730
Issue date
Jan 2, 2007
Ricoh Company, Ltd.
Kazuhito Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus using installable process cartridge, method...
Patent number
7,136,610
Issue date
Nov 14, 2006
Ricoh Company, Ltd.
Yuji Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Powder conveying device and image forming apparatus using the same
Patent number
7,076,192
Issue date
Jul 11, 2006
Ricoh Company, Ltd.
Kiyonori Tsuda
Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information
Patent Grant
Image forming apparatus using a user installable process cartridge,...
Patent number
7,024,133
Issue date
Apr 4, 2006
Ricoh Co., Ltd.
Hiroyuki Nagashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and process cartridge
Patent number
7,003,255
Issue date
Feb 21, 2006
Ricoh Company, Ltd.
Masanori Kawasumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
Publication number
20110249991
Publication date
Oct 13, 2011
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
Publication number
20110026973
Publication date
Feb 3, 2011
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER CARTRIDGE, IMAGE FORMING APPARATUS, METHOD OF RECYCLING TONER...
Publication number
20100296847
Publication date
Nov 25, 2010
Takeroh Kurenuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
Publication number
20090175660
Publication date
Jul 9, 2009
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
Publication number
20080286013
Publication date
Nov 20, 2008
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
DEVELOPER CONTAINER, DEVELOPER SUPPLYING DEVICE, AND IMAGE FORMING...
Publication number
20080003021
Publication date
Jan 3, 2008
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner Cartridge, Image Forming Apparatus, Method of Recycling Toner...
Publication number
20070212119
Publication date
Sep 13, 2007
RICOH COMPANY, LTD.
Takeroh Kurenuma
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developer container, developer supplying device, and image forming...
Publication number
20070177905
Publication date
Aug 2, 2007
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE REMOVABLY MOUNTED THE...
Publication number
20070166074
Publication date
Jul 19, 2007
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER CONTAINER, TONER SUPPLY DEVICE AND IMAGE FORMING APPARATUS
Publication number
20070140747
Publication date
Jun 21, 2007
Emi Kita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, PROCESS CARTRIDGE, DEVELOPING UNIT, AND IM...
Publication number
20070071499
Publication date
Mar 29, 2007
Kazuhito Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Toner container, toner supply device and image forming apparatus
Publication number
20060099012
Publication date
May 11, 2006
Emi Kita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Process cartridge and image forming apparatus
Publication number
20060045603
Publication date
Mar 2, 2006
Satoshi Hatori
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus using a toner container and a process cartr...
Publication number
20050226656
Publication date
Oct 13, 2005
Kiyonori Tsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, process cartridge, developing unit, and im...
Publication number
20050063713
Publication date
Mar 24, 2005
Kazuhito Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Developer container, developer supplying device, and image forming...
Publication number
20040223790
Publication date
Nov 11, 2004
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Powder conveying device and image forming apparatus using the same
Publication number
20040184841
Publication date
Sep 23, 2004
Kiyonori Tsuda
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus using installable process cartridge, method...
Publication number
20040170447
Publication date
Sep 2, 2004
Yuji Arai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus using a user installable process cartridge,...
Publication number
20040170446
Publication date
Sep 2, 2004
Hiroyuki Nagashima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge
Publication number
20040131381
Publication date
Jul 8, 2004
Masanori Kawasumi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus and process cartridge removably mounted the...
Publication number
20040096239
Publication date
May 20, 2004
Hiroshi Hosokawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY