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Patents Grants
last 30 patents
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Patent Grant
Electrophotographic photosensitive member, process cartridge, and i...
Patent number
11,003,101
Issue date
May 11, 2021
Kyocera Document Solutions Inc.
Yuko Iwashita
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member, process cartridge, and i...
Patent number
10,996,575
Issue date
May 4, 2021
Kyocera Document Solutions Inc.
Tomofumi Shimizu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
9,864,322
Issue date
Jan 9, 2018
Ricoh Company, Ltd.
Mayumi Yoshihara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Positively chargeable monolayer electrophotographic photosensitive...
Patent number
8,980,507
Issue date
Mar 17, 2015
Kyocera Document Solutions Inc.
Tomofumi Shimizu
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive body
Patent number
8,808,951
Issue date
Aug 19, 2014
Hodogaya Chemical Co., Ltd.
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor, and image forming method and app...
Patent number
8,669,030
Issue date
Mar 11, 2014
Ricoh Company, Limited
Yukio Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor and image-forming apparatus
Patent number
8,609,309
Issue date
Dec 17, 2013
Mitsubishi Chemical Corporation
Yuka Nagao
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Azo compound and method of preparing the azo compound
Patent number
8,541,557
Issue date
Sep 24, 2013
Ricoh Company, Ltd.
Masafumi Ohta
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photoreceptor, electrophotographic photorecepto...
Patent number
8,530,123
Issue date
Sep 10, 2013
Mitsubishi Chemical Corporation
Kumiko Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Hydroxygallium phthalocyanine composite pigment, electrophotographi...
Patent number
8,530,124
Issue date
Sep 10, 2013
Ricoh Company, Ltd.
Hiromi Sakaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Method of drying organic pigment, method of processing phthalocyani...
Patent number
8,518,615
Issue date
Aug 27, 2013
Canon Kabushiki Kaisha
Masato Tanaka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Image bearing member, image forming apparatus, and process cartridge
Patent number
8,486,595
Issue date
Jul 16, 2013
Ricoh Company, Ltd.
Nozomu Tamoto
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor and image-forming apparatus
Patent number
8,288,066
Issue date
Oct 16, 2012
Mitsubishi Chemical Corporation
Yuka Nagao
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor and electrophotographic apparatus
Patent number
8,263,297
Issue date
Sep 11, 2012
Ricoh Company, Ltd.
Takaaki Ikegami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Azo compound and method of preparing the azo compound
Patent number
8,232,376
Issue date
Jul 31, 2012
Ricoh Company, Ltd.
Masafumi Ohta
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photoconductor, and image forming apparatus and...
Patent number
8,192,904
Issue date
Jun 5, 2012
Ricoh Company, Ltd.
Kazukiyo Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Crosslinked siloxane outmost layer having aromatic silicon-containi...
Patent number
8,148,039
Issue date
Apr 3, 2012
Xerox Corporation
Yu Qi
C07 - ORGANIC CHEMISTRY
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Patent Grant
Polyvinyl acetal resin, electrophotographic photosensitive member,...
Patent number
8,088,541
Issue date
Jan 3, 2012
Canon Kabushiki Kaisha
Masato Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Electrophotographic photoreceptor and method of preparing the photo...
Patent number
7,964,327
Issue date
Jun 21, 2011
Ricoh Company Ltd.
Masanobu Gondoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive body
Patent number
7,919,219
Issue date
Apr 5, 2011
Hodogaya Chemical Co., Ltd.
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image bearing member, image forming method, and image forming appar...
Patent number
7,914,959
Issue date
Mar 29, 2011
Ricoh Company, Limited
Yoshinori Inaba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member, method of producing elec...
Patent number
7,910,274
Issue date
Mar 22, 2011
Canon Kabushiki Kaisha
Masato Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrostatic latent image bearing member, and image forming appara...
Patent number
7,897,313
Issue date
Mar 1, 2011
Ricoh Company Limited
Akihiro Sugino
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Compact and high speed image forming apparatus and image forming me...
Patent number
7,894,750
Issue date
Feb 22, 2011
Ricoh Company Limited
Yoshinori Inaba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Crosslinked siloxane outmost layer having aromatic silicon-containi...
Patent number
7,795,462
Issue date
Sep 14, 2010
Xerox Corporation
Yu Qi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Electrophotographic photosensitive body
Patent number
7,790,342
Issue date
Sep 7, 2010
Hodogaya Chemical Co., Ltd.
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming method
Patent number
7,785,762
Issue date
Aug 31, 2010
Ricoh Company, Ltd.
Tatsuya Niimi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and image forming method
Patent number
7,764,906
Issue date
Jul 27, 2010
Ricoh Company, Ltd.
Tatsuya Niimi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor
Patent number
7,662,529
Issue date
Feb 16, 2010
Fuji Electric Device Technology Co., Ltd.
Mikio Yamazaki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photosensitive member, and electrophotographic...
Patent number
7,517,626
Issue date
Apr 14, 2009
Canon Kabushiki Kaisha
Atsushi Fujii
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND I...
Publication number
20200233323
Publication date
Jul 23, 2020
KYOCERA DOCUMENT SOLUTIONS INC.
Yuko IWASHITA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOCONDUCTIVE LAYER WITH ADJUSTABLE ELECTRICAL PROPERTY
Publication number
20160357108
Publication date
Dec 8, 2016
Green Rich Technology Co., Ltd.
Yu-Hsiang HSU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, PROCESS CARTRIDGE, AND E...
Publication number
20150093695
Publication date
Apr 2, 2015
Canon Kabushiki Kaisha
Hiroyuki Tomono
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
POSITIVELY CHARGEABLE MONOLAYER ELECTROPHOTOGRAPHIC PHOTOSENSITIVE...
Publication number
20140154619
Publication date
Jun 5, 2014
KYOCERA DOCUMENT SOLUTIONS INC.
Tomofumi SHIMIZU
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY
Publication number
20130266343
Publication date
Oct 10, 2013
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
AZO COMPOUND AND METHOD OF PREPARING THE AZO COMPOUND
Publication number
20120253025
Publication date
Oct 4, 2012
RICOH COMPANY, LTD.
Masafumi Ohta
C07 - ORGANIC CHEMISTRY
Information
Patent Application
HYDROXYGALLIUM PHTHALOCYANINE COMPOSITE PIGMENT, ELECTROPHOTOGRAPHI...
Publication number
20110159418
Publication date
Jun 30, 2011
Hiromi SAKAGUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METHOD OF DRYING ORGANIC PIGMENT, METHOD OF PROCESSING PHTHALOCYANI...
Publication number
20110076614
Publication date
Mar 31, 2011
Canon Kabushiki Kaisha
Masato Tanaka
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
IMAGE BEARING MEMBER, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20110059393
Publication date
Mar 10, 2011
Nozomu TAMOTO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND IMAGE-FORMING APPARATUS
Publication number
20110033792
Publication date
Feb 10, 2011
MITSUBISHI CHEMICAL CORPORATION
Yuka NAGAO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, ELECTROPHOTOGRAPHIC PHOTORECEPTO...
Publication number
20100330474
Publication date
Dec 30, 2010
MITSUBISHI CHEMICAL CORPORATION
Kumiko Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY
Publication number
20100291480
Publication date
Nov 18, 2010
Hodogaya Chemical Co., Ltd.
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20100196049
Publication date
Aug 5, 2010
Tatsuya Niimi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
CROSSLINKED SILOXANE OUTMOST LAYER HAVING AROMATIC SILICON-CONTAINI...
Publication number
20100035169
Publication date
Feb 11, 2010
Xerox Corporation
Yu QI
C07 - ORGANIC CHEMISTRY
Information
Patent Application
Quinone Compound, Electrophotographic Photoconductor and Electropho...
Publication number
20090317733
Publication date
Dec 24, 2009
Fuji Electric Device Technology Co., LTD.
Kenichi Okura
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE BODY
Publication number
20090226830
Publication date
Sep 10, 2009
Hodogaya Chemical Co., Ltd.
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER, METHOD OF PRODUCING ELEC...
Publication number
20090208247
Publication date
Aug 20, 2009
Canon Kabushiki Kaisha
Masato Tanaka
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR AND ELECTROPHOTOGRAPHIC APPARATUS
Publication number
20090136260
Publication date
May 28, 2009
Ricoh Company, Ltd,
Takaaki IKEGAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Application
POLYVINYL ACETAL RESIN, ELECTROPHOTOGRAPHIC PHOTOSENSITIVE MEMBER,...
Publication number
20090123176
Publication date
May 14, 2009
Canon Kabushiki Kaisha
Masato Tanaka
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
AZO COMPOUND AND METHOD OF PREPARING THE AZO COMPOUND
Publication number
20090005546
Publication date
Jan 1, 2009
RICOH COMPANY, LTD.
Masafumi Ohta
C07 - ORGANIC CHEMISTRY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND ELECTROPHOTOGRAPHIC IMAGE FOR...
Publication number
20080199218
Publication date
Aug 21, 2008
Yasuo Suzuki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic Photoreceptor and Image-Forming Apparatus
Publication number
20080193867
Publication date
Aug 14, 2008
MITSUBISHI CHEMICAL CORPORATION
Yuka Nagao
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic photoreceptor, and image forming method and app...
Publication number
20080138725
Publication date
Jun 12, 2008
Yukio Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic Photosensitive Body
Publication number
20080044750
Publication date
Feb 21, 2008
Hodogaya Chemical Co., Ltd.
Katsumi Abe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, AND IMAGE FORMING APPARATUS AND...
Publication number
20070292780
Publication date
Dec 20, 2007
Kazukiyo Nagai
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR AND METHOD OF PREPARING THE PHOTO...
Publication number
20070287083
Publication date
Dec 13, 2007
Masanobu Gondoh
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20070268354
Publication date
Nov 22, 2007
Yoshinori Inaba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Application
ELECTROSTATIC LATENT IMAGE BEARING MEMBER, AND IMAGE FORMING APPARA...
Publication number
20070254224
Publication date
Nov 1, 2007
Akihiro SUGINO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Patent Application
Resin composition
Publication number
20070243488
Publication date
Oct 18, 2007
Hideyuki Tsunemori
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
IMAGE BEARING MEMBER, IMAGE FORMING METHOD, AND IMAGE FORMING APPAR...
Publication number
20070196749
Publication date
Aug 23, 2007
Yoshinori Inaba
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY