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last 30 patents
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
11,215,945
Issue date
Jan 4, 2022
Ricoh Company, Ltd.
Toshihiro Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
10,606,204
Issue date
Mar 31, 2020
Ricoh Company, Ltd.
Toshihiro Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical sensor, optical testing device, and optical characteristic...
Patent number
10,039,452
Issue date
Aug 7, 2018
Ricoh Company, Ltd.
Toshihiro Ishii
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Surface-emitting laser module, optical scanner device, and image fo...
Patent number
9,831,633
Issue date
Nov 28, 2017
Ricoh Company, Ltd.
Toshihiro Ishii
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
9,696,674
Issue date
Jul 4, 2017
Ricoh Company, Ltd.
Toshihiro Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
9,678,006
Issue date
Jun 13, 2017
Ricoh Company, Ltd.
Yoshihiro Ohba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method for manufacturing an optical unit
Patent number
9,627,845
Issue date
Apr 18, 2017
Ricoh Company, Ltd.
Masaki Hiroi
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vertical cavity surface emitting laser device, vertical cavity surf...
Patent number
9,570,887
Issue date
Feb 14, 2017
Ricoh Company, Ltd.
Naoto Jikutani
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optical sensor and image forming device incorporating the same
Patent number
9,513,218
Issue date
Dec 6, 2016
Ricoh Company, Ltd.
Yoshihiro Ohba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
9,513,216
Issue date
Dec 6, 2016
Ricoh Company, Ltd.
Yoshihiro Ohba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Surface-emitting laser module, optical scanner device, and image fo...
Patent number
9,276,377
Issue date
Mar 1, 2016
Ricoh Company, Ltd.
Toshihiro Ishii
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
9,267,886
Issue date
Feb 23, 2016
Ricoh Company, Ltd.
Yoshihiro Ohba
G01 - MEASURING TESTING
Information
Patent Grant
Sensor and image-forming apparatus
Patent number
9,188,530
Issue date
Nov 17, 2015
Ricoh Company, Ltd.
Fumikazu Hoshi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Sensor device and image forming apparatus
Patent number
9,170,190
Issue date
Oct 27, 2015
Ricoh Company, Ltd.
Kazuma Goto
G01 - MEASURING TESTING
Information
Patent Grant
Moisture sensor, moisture detector, and image forming apparatus
Patent number
9,157,853
Issue date
Oct 13, 2015
Ricoh Company, Ltd.
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Grant
Optical sensor and image forming apparatus configured to detect ins...
Patent number
9,103,717
Issue date
Aug 11, 2015
Ricoh Company, Ltd.
Yoshihiro Oba
G01 - MEASURING TESTING
Information
Patent Grant
Package member for electronic component and optical device includin...
Patent number
9,063,004
Issue date
Jun 23, 2015
Ricoh Company, Ltd.
Toshishige Fujii
G01 - MEASURING TESTING
Information
Patent Grant
Light source unit, optical scanning device, and image forming appar...
Patent number
8,976,216
Issue date
Mar 10, 2015
Ricoh Company, Ltd.
Yoshihiro Ohba
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
8,971,749
Issue date
Mar 3, 2015
Ricoh Company, Ltd.
Yoshihiro Oba
G01 - MEASURING TESTING
Information
Patent Grant
Optical sensor and image forming apparatus
Patent number
8,942,583
Issue date
Jan 27, 2015
Ricoh Company, Ltd.
Fumikazu Hoshi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Surface-emitting laser module, optical scanner device, and image fo...
Patent number
8,916,418
Issue date
Dec 23, 2014
Ricoh Company, Ltd.
Toshihiro Ishii
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Vertical cavity surface emitting laser device, vertical cavity surf...
Patent number
8,891,571
Issue date
Nov 18, 2014
Ricoh Company, Ltd.
Naoto Jikutani
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Optical device capable of minimizing output variation due to feedba...
Patent number
8,803,936
Issue date
Aug 12, 2014
Ricoh Company, Ltd.
Kazuhiko Adachi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Moisture sensor, moisture detector, and image forming apparatus
Patent number
8,750,732
Issue date
Jun 10, 2014
Ricoh Company, Limited
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Grant
Surface-emitting laser array, optical scanning device, and image fo...
Patent number
8,705,585
Issue date
Apr 22, 2014
Ricoh Company, Ltd.
Shunichi Sato
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Surface-emitting laser element, surface-emitting laser array, optic...
Patent number
8,675,271
Issue date
Mar 18, 2014
Ricoh Company, Ltd.
Naoto Jikutani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Surface-emitting laser comprising emission region having peripheral...
Patent number
8,624,950
Issue date
Jan 7, 2014
Ricoh Company, Ltd.
Naoto Jikutani
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Surface emitting laser element, surface emitting laser array, optic...
Patent number
8,594,146
Issue date
Nov 26, 2013
Ricoh Company, Ltd.
Naoto Jikutani
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Surface-emitting laser element including dielectric film selectivel...
Patent number
8,441,511
Issue date
May 14, 2013
Ricoh Company, Ltd.
Kazuhiro Harasaka
B82 - NANO-TECHNOLOGY
Information
Patent Grant
Optical device, optical scanning device, image forming apparatus, a...
Patent number
8,421,838
Issue date
Apr 16, 2013
Ricoh Company, Ltd.
Takayuki Yamaguchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20200183314
Publication date
Jun 11, 2020
RICOH COMPANY, LTD.
Toshihiro Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20170261903
Publication date
Sep 14, 2017
RICOH COMPANY, LTD.
Toshihiro Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20160377540
Publication date
Dec 29, 2016
RICOH COMPANY, LTD.
Yoshihiro OHBA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR, OPTICAL TESTING DEVICE, AND OPTICAL CHARACTERISTIC...
Publication number
20160242647
Publication date
Aug 25, 2016
RICOH COMPANY, LTD.
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Application
SURFACE-EMITTING LASER MODULE, OPTICAL SCANNER DEVICE, AND IMAGE FO...
Publication number
20160149375
Publication date
May 26, 2016
RICOH COMPANY, LTD.
Toshihiro ISHll
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20160109364
Publication date
Apr 21, 2016
RICOH COMPANY, LTD.
Yoshihiro OHBA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20150261163
Publication date
Sep 17, 2015
RICOH COMPANY, LTD.
Toshihiro Ishii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
VERTICAL CAVITY SURFACE EMITTING LASER DEVICE, VERTICAL CAVITY SURF...
Publication number
20150063396
Publication date
Mar 5, 2015
RICOH COMPANY, LTD.
Naoto JIKUTANI
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SURFACE-EMITTING LASER MODULE, OPTICAL SCANNER DEVICE, AND IMAGE FO...
Publication number
20150023381
Publication date
Jan 22, 2015
RICOH COMPANY, LTD.
Toshihiro Ishii
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
SENSOR DEVICE AND IMAGE FORMING APPARATUS
Publication number
20150015882
Publication date
Jan 15, 2015
RICOH COMPANY, LTD.
Kazuma Goto
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING DEVICE INCORPORATING THE SAME
Publication number
20140268151
Publication date
Sep 18, 2014
RICOH COMPANY, LTD.
Yoshihiro Ohba
G01 - MEASURING TESTING
Information
Patent Application
MOISTURE SENSOR, MOISTURE DETECTOR, AND IMAGE FORMING APPARATUS
Publication number
20140246590
Publication date
Sep 4, 2014
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Application
SENSOR AND IMAGE-FORMING APPARATUS
Publication number
20140241742
Publication date
Aug 28, 2014
RICOH COMPANY, LTD.
Fumikazu Hoshi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING DEVICE
Publication number
20130235377
Publication date
Sep 12, 2013
RICOH COMPANY, LTD.
Toshihiro ISHII
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20130228674
Publication date
Sep 5, 2013
RICOH COMPANY, LTD.
Yoshihiro Oba
G01 - MEASURING TESTING
Information
Patent Application
SURFACE-EMITTING LASER ARRAY, OPTICAL SCANNING DEVICE, AND IMAGE FO...
Publication number
20130230070
Publication date
Sep 5, 2013
RICOH COMPANY, LTD.
Shunichi Sato
B82 - NANO-TECHNOLOGY
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20130216245
Publication date
Aug 22, 2013
RICOH COMPANY, LTD.
Fumikazu Hoshi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20130216246
Publication date
Aug 22, 2013
RICOH COMPANY, LTD.
Fumikazu Hoshi
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20130216247
Publication date
Aug 22, 2013
RICOH COMPANY, LTD.
Yoshihiro Oba
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR AND IMAGE FORMING APPARATUS
Publication number
20130194573
Publication date
Aug 1, 2013
Yoshihiro Ohba
G01 - MEASURING TESTING
Information
Patent Application
METHOD FOR MANUFACTURING AN OPTICAL UNIT
Publication number
20130152366
Publication date
Jun 20, 2013
Masaki Hiroi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
PACKAGE MEMBER AND OPTICAL DEVICE
Publication number
20130062510
Publication date
Mar 14, 2013
RICOH COMPANY, LTD.
Toshishige FUJII
G01 - MEASURING TESTING
Information
Patent Application
MOISTURE SENSOR, MOISTURE DETECTOR, AND IMAGE FORMING APPARATUS
Publication number
20130057861
Publication date
Mar 7, 2013
Toshihiro Ishii
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL SENSOR, IMAGE FORMING APPARATUS AND DETERMINATION METHOD
Publication number
20130057868
Publication date
Mar 7, 2013
Yoshihiro OBA
G01 - MEASURING TESTING
Information
Patent Application
OPTICAL DEVICE CAPABLE OF MINIMIZING OUTPUT VARIATION DUE TO FEEDBA...
Publication number
20120251182
Publication date
Oct 4, 2012
RICOH COMPANY, LTD.,
Kazuhiko Adachi
G02 - OPTICS
Information
Patent Application
SURFACE-EMITTING LASER, SURFACE-EMITTING LASER ARRAY, OPTICAL SCANN...
Publication number
20120121297
Publication date
May 17, 2012
RICOH COMPANY ,LTD.,
Naoto Jikutani
B82 - NANO-TECHNOLOGY
Information
Patent Application
LIGHT SOURCE UNIT, OPTICAL SCANNING DEVICE, AND IMAGE FORMING APPAR...
Publication number
20110267415
Publication date
Nov 3, 2011
RICOH COMPANY, LTD.
Yoshihiro OHBA
G02 - OPTICS
Information
Patent Application
SURFACE-EMITTING LASER MODULE, OPTICAL SCANNER DEVICE, AND IMAGE FO...
Publication number
20110228035
Publication date
Sep 22, 2011
RICOH COMPANY, LTD.
Toshihiro Ishii
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
SURFACE-EMITTING LASER ELEMENT, SURFACE-EMITTING LASER ARRAY, OPTIC...
Publication number
20110170155
Publication date
Jul 14, 2011
RICOH COMPANY, LTD.
Naoto JIKUTANI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
SURFACE-EMITTING LASER ELEMENT, SURFACE-EMITTING LASER ARRAY, OPTIC...
Publication number
20110115872
Publication date
May 19, 2011
RICOH COMPANY, LTD.
Kazuhiro HARASAKA
G02 - OPTICS