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Masataka Akaishi
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Fixing device and image forming apparatus
Patent number
9,128,449
Issue date
Sep 8, 2015
Ricoh Company, Ltd.
Masataka Akaishi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Fixing device including a plurality of coils, coil drivers, and a d...
Patent number
9,098,029
Issue date
Aug 4, 2015
Ricoh Company, Ltd.
Tsuyoshi Ueno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical sensor unit with shutter member and image-forming apparatus...
Patent number
8,934,795
Issue date
Jan 13, 2015
Ricoh Company, Ltd.
Masafumi Hashiguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photosensor and image forming device incorporating the same
Patent number
8,818,218
Issue date
Aug 26, 2014
Ricoh Company, Ltd.
Sohichiroh Naka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image position detector and image forming device
Patent number
8,774,656
Issue date
Jul 8, 2014
Ricoh Company, Ltd.
Masahiko Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reflective photosensor and image forming device incorporating the same
Patent number
8,474,810
Issue date
Jul 2, 2013
Ricoh Company, Ltd.
Norifumi Yamamoto
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Patents Applications
last 30 patents
Information
Patent Application
FIXING DEVICE AND IMAGE FORMING APPARATUS
Publication number
20150010319
Publication date
Jan 8, 2015
RICOH COMPANY, LTD.
Masataka AKAISHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
FIXING DEVICE
Publication number
20140072320
Publication date
Mar 13, 2014
Tsuyoshi UENO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOSENSOR AND IMAGE FORMING DEVICE INCORPORATING THE SAME
Publication number
20130022363
Publication date
Jan 24, 2013
Sohichiroh NAKA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
OPTICAL SENSOR UNIT AND IMAGE-FORMING APPARATUS
Publication number
20130004189
Publication date
Jan 3, 2013
RICOH COMPANY, LTD.
Masafumi Hashiguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
REFLECTIVE PHOTOSENSOR AND IMAGE FORMING DEVICE INCORPORATING THE SAME
Publication number
20130001857
Publication date
Jan 3, 2013
RICOH COMPANY, LTD.
Norifumi Yamamoto
G01 - MEASURING TESTING
Information
Patent Application
IMAGE POSITION DETECTOR AND IMAGE FORMING DEVICE
Publication number
20120298845
Publication date
Nov 29, 2012
RICOH COMPANY, LTD.
Masahiko Sato
H04 - ELECTRIC COMMUNICATION TECHNIQUE