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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Image forming apparatus having an optical sensor for converting a t...
Patent number
9,565,319
Issue date
Feb 7, 2017
Ricoh Company, Ltd.
Tetsuya Muto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus that switches transfer bias based on detect...
Patent number
9,535,376
Issue date
Jan 3, 2017
Ricoh Company, Ltd.
Keita Sone
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner pattern density correction in an image forming apparatus
Patent number
9,436,135
Issue date
Sep 6, 2016
Ricoh Company, Ltd.
Keita Sone
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image density control
Patent number
9,182,701
Issue date
Nov 10, 2015
Ricoh Company, Ltd.
Keita Gotoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming method
Patent number
9,152,896
Issue date
Oct 6, 2015
Ricoh Company, Ltd.
Satoshi Kaneko
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Image forming apparatus
Patent number
9,141,059
Issue date
Sep 22, 2015
Ricoh Company, Ltd.
Tetsuya Muto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
8,983,320
Issue date
Mar 17, 2015
Ricoh Company, Ltd.
Shingo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20160246220
Publication date
Aug 25, 2016
Keita SONE
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20160112580
Publication date
Apr 21, 2016
RICOH COMPANY, LTD.
Tetsuya MUTO
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20150362868
Publication date
Dec 17, 2015
RICOH COMPANY, LTD.
Keita Sone
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20150125168
Publication date
May 7, 2015
Keita GOTOH
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20140270828
Publication date
Sep 18, 2014
Shingo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20140268242
Publication date
Sep 18, 2014
Satoshi KANEKO
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20140270827
Publication date
Sep 18, 2014
Tetsuya MUTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY