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Takahiro Tamiya
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Transfer device and image forming apparatus
Patent number
8,358,955
Issue date
Jan 22, 2013
Ricoh Company, Limited
Katsuhiro Echigo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus having a neutralizing member of determined...
Patent number
8,121,527
Issue date
Feb 21, 2012
Ricoh Company, Limited
Hajime Oyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
8,081,913
Issue date
Dec 20, 2011
Ricoh Company, Ltd.
Hajime Oyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
7,546,074
Issue date
Jun 9, 2009
Ricoh Co., Ltd.
Hajime Oyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method and apparatus with reduced reverse toner transfer
Patent number
7,308,226
Issue date
Dec 11, 2007
Ricoh Company, Ltd.
Ayako Iino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Transfer bias applying method for an image forming apparatus and de...
Patent number
6,829,450
Issue date
Dec 7, 2004
Ricoh Company, Ltd.
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, and process cartridge for use in image for...
Patent number
6,741,821
Issue date
May 25, 2004
Ricoh Company, Ltd.
Akihiro Sugino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus including an image carrier and a polarizati...
Patent number
6,701,100
Issue date
Mar 2, 2004
Ricoh Company, Ltd.
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Transfer bias applying method for an image forming apparatus and de...
Patent number
6,618,565
Issue date
Sep 9, 2003
Ricoh Company, Ltd.
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Color image forming apparatus with polygonal mirror rotation phase...
Patent number
6,184,910
Issue date
Feb 6, 2001
Ricoh Company, Ltd.
Eiichi Sasaki
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Image forming apparatus having a transfer electrode
Patent number
6,134,416
Issue date
Oct 17, 2000
Ricoh Company, Ltd.
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Color image forming apparatus
Patent number
5,740,492
Issue date
Apr 14, 1998
Ricoh Company, Ltd.
Tsuyoshi Deki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Paper conveyer of image forming apparatus which conveys paper to a...
Patent number
5,678,161
Issue date
Oct 14, 1997
Ricoh Company, Ltd.
Shigeo Kurotaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image transfer method for an image forming apparatus
Patent number
5,599,645
Issue date
Feb 4, 1997
Ricoh Company, Ltd.
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
TRANSFER DEVICE AND IMAGE FORMING APPARATUS
Publication number
20090324306
Publication date
Dec 31, 2009
Katsuhiro Echigo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20090074482
Publication date
Mar 19, 2009
Hajime Oyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20080213010
Publication date
Sep 4, 2008
Hajime OYAMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20070217832
Publication date
Sep 20, 2007
Hajime Oyama
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20060209151
Publication date
Sep 21, 2006
Takahiro Tamiya
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Image forming method and image forming apparatus using the same
Publication number
20050117938
Publication date
Jun 2, 2005
Ayako Iino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Bias applying method for an image forming apparatus and device for...
Publication number
20040105692
Publication date
Jun 3, 2004
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus, and process cartridge for use in image for...
Publication number
20030035660
Publication date
Feb 20, 2003
Akihiro Sugino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Bias applying method for an image forming apparatus and device for...
Publication number
20030026625
Publication date
Feb 6, 2003
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Image forming apparatus
Publication number
20020098011
Publication date
Jul 25, 2002
Takahiro Tamiya
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY