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Shizuoka, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Photoelectric conversion device, process cartridge, and image formi...
Patent number
11,575,095
Issue date
Feb 7, 2023
Ricoh Company, Ltd.
Daisuke Kubo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method, image forming apparatus, and process cartridge
Patent number
10,845,738
Issue date
Nov 24, 2020
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
10,585,366
Issue date
Mar 10, 2020
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor, image forming apparatus, and im...
Patent number
10,545,417
Issue date
Jan 28, 2020
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming method, image forming apparatus, and process cartridge
Patent number
10,416,594
Issue date
Sep 17, 2019
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoconductor, image forming apparatus, and process cartridge
Patent number
10,114,302
Issue date
Oct 30, 2018
Ricoh Company, Ltd.
Ryohta Takahashi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoconductor, image forming method using the same, method of manu...
Patent number
9,989,868
Issue date
Jun 5, 2018
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoconductor, and image forming method and image forming apparatu...
Patent number
9,740,116
Issue date
Aug 22, 2017
Ricoh Company, Ltd.
Nobutaka Eguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoconductor, and image forming method and image forming apparatu...
Patent number
9,523,930
Issue date
Dec 20, 2016
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus, and image forming method
Patent number
9,046,863
Issue date
Jun 2, 2015
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor, production method of the same,...
Patent number
8,795,935
Issue date
Aug 5, 2014
Ricoh Company, Ltd.
Hidetoshi Kami
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, method of manufacturing electrop...
Patent number
8,597,863
Issue date
Dec 3, 2013
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor, method for producing electropho...
Patent number
8,557,487
Issue date
Oct 15, 2013
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus
Patent number
8,543,037
Issue date
Sep 24, 2013
Ricoh Company, Ltd.
Kazuhiro Egawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor, and image forming apparatus and...
Patent number
8,512,924
Issue date
Aug 20, 2013
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor, image forming apparatus and proc...
Patent number
8,420,284
Issue date
Apr 16, 2013
Ricoh Company, Ltd.
Kohichi Ohshima
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photorecptor, method of manufacturing electroph...
Patent number
8,293,439
Issue date
Oct 23, 2012
Ricoh Company, Ltd.
Yukio Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoreceptor, image formation method, image forming apparatus and...
Patent number
8,247,143
Issue date
Aug 21, 2012
Ricoh Company, Ltd.
Kazuhiro Egawa
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image forming apparatus and process cartridge
Patent number
8,170,449
Issue date
May 1, 2012
Ricoh Company Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image bearing member, process cartridge, image forming apparatus an...
Patent number
8,148,038
Issue date
Apr 3, 2012
Ricoh Company, Ltd.
Yukio Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoreceptor, and process cartridge and image...
Patent number
8,119,317
Issue date
Feb 21, 2012
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor, electrophotographic process car...
Patent number
8,084,170
Issue date
Dec 27, 2011
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Image bearing member, image forming apparatus and process cartridge
Patent number
8,043,773
Issue date
Oct 25, 2011
Ricoh Company, Limited
Hiroshi Ikuno
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Electrophotographic photoconductor, process cartridge, and image fo...
Patent number
8,043,777
Issue date
Oct 25, 2011
Ricoh Company, Ltd.
Hidetoshi Kami
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
Image bearing member, and image forming apparatus and process cartr...
Patent number
7,718,335
Issue date
May 18, 2010
Ricoh Company Limited
Yukio Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Latent electrostatic image bearing member, and process cartridge, i...
Patent number
7,709,170
Issue date
May 4, 2010
Ricoh Company, Ltd.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, toner container and latent electrostatic image ca...
Patent number
7,482,104
Issue date
Jan 27, 2009
Ricoh Company, Ltd.
Maiko Kondo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Toner, developer, toner container and latent electrostatic image ca...
Patent number
7,386,256
Issue date
Jun 10, 2008
Ricoh Company, Ltd.
Maiko Kondo
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Patents Applications
last 30 patents
Information
Patent Application
POWDER, LAMINATE USING THE SAME, AND METHOD OF MANUFACTURING LAMINATE
Publication number
20250115520
Publication date
Apr 10, 2025
RICOH COMPANY, LTD.
Hidetoshi Kami
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
LAMINATE, DEVICE USING THE SAME, AND PRODUCTION METHODS THEREOF
Publication number
20230324819
Publication date
Oct 12, 2023
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ALUMINA POWDER AND METHOD OF PRODUCING THE SAME, AND STACK AND METH...
Publication number
20230303849
Publication date
Sep 28, 2023
Hidetoshi KAMI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
METAL OXIDE PARTICLES, LAMINATED BODY, SOLAR CELL, PHOTOCONDUCTOR,...
Publication number
20230202842
Publication date
Jun 29, 2023
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
METAL OXIDE PARTICLES HAVING P-TYPE SEMICONDUCTIVITY, ELECTRONIC DE...
Publication number
20230125171
Publication date
Apr 27, 2023
Ricoh Gampany, Lid.
Tomoharu ASANO
Information
Patent Application
ELECTRONIC DEVICE AND METHOD FOR PRODUCING THE SAME, IMAGE FORMING...
Publication number
20230101614
Publication date
Mar 30, 2023
RICOH COMPANY, LTD.
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTRONIC DEVICE AND METHOD FOR PRODUCING THE SAME, IMAGE FORMING...
Publication number
20220342327
Publication date
Oct 27, 2022
RICOH COMPANY, LTD.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOELECTRIC CONVERSION ELEMENT, ORGANIC PHOTOCONDUCTOR, IMAGE FOR...
Publication number
20220140284
Publication date
May 5, 2022
RICOH COMPANY, LTD.
Hidetoshi Kami
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Application
PHOTOELECTRIC CONVERSION DEVICE, PROCESS CARTRIDGE, AND IMAGE FORMI...
Publication number
20210003931
Publication date
Jan 7, 2021
Daisuke KUBO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND IM...
Publication number
20200033743
Publication date
Jan 30, 2020
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20200004179
Publication date
Jan 2, 2020
Hidetoshi Kami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20190285997
Publication date
Sep 19, 2019
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING METHOD, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20180113403
Publication date
Apr 26, 2018
Hidetoshi Kami
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
PHOTOCONDUCTOR, IMAGE FORMING APPARATUS, AND PROCESS CARTRIDGE
Publication number
20170343908
Publication date
Nov 30, 2017
Ryohta TAKAHASHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOCONDUCTOR, AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATU...
Publication number
20160274475
Publication date
Sep 22, 2016
Nobutaka EGUCHI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOCONDUCTOR, IMAGE FORMING METHOD USING THE SAME, METHOD OF MANU...
Publication number
20150346613
Publication date
Dec 3, 2015
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTOCONDUCTOR, AND IMAGE FORMING METHOD AND IMAGE FORMING APPARATU...
Publication number
20150227063
Publication date
Aug 13, 2015
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
Publication number
20140234763
Publication date
Aug 21, 2014
Akihiro SUGINO
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
Publication number
20140193185
Publication date
Jul 10, 2014
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND IMAGE FORMING METHOD
Publication number
20120237228
Publication date
Sep 20, 2012
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, PRODUCTION METHOD OF THE SAME,...
Publication number
20120008984
Publication date
Jan 12, 2012
RICOH COMPANY LTD.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, AND IMAGE FORMING APPARATUS AND...
Publication number
20110200924
Publication date
Aug 18, 2011
RICOH COMPANY, LTD.,
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTOCONDUCTOR, METHOD FOR PRODUCING ELECTROPHO...
Publication number
20110076057
Publication date
Mar 31, 2011
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
TONER, METHOD FOR MANUFACTURING THE TONER, DEVELOPER INCLUDING THE...
Publication number
20110033203
Publication date
Feb 10, 2011
Yohichiroh Watanabe
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, METHOD OF MANUFACTURING ELECTROP...
Publication number
20100316423
Publication date
Dec 16, 2010
RICOH COMPANY, LTD.
Hidetoshi KAMI
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Electrophotographic Photorecptor, Method Of Manufacturing Electroph...
Publication number
20100232831
Publication date
Sep 16, 2010
RICOH COMPANY, LTD.
Yukio Fujiwara
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
ELECTROPHOTOGRAPHIC PHOTORECEPTOR, IMAGE FORMING APPARATUS AND PROC...
Publication number
20100172670
Publication date
Jul 8, 2010
RICOH COMPANY, LTD.
Kohichi OHSHIMA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS
Publication number
20100124712
Publication date
May 20, 2010
RICOH COMPANY, LTD.
Kazuhiro EGAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
PHOTORECEPTOR, IMAGE FORMATION METHOD, IMAGE FORMING APPARATUS AND...
Publication number
20100119260
Publication date
May 13, 2010
RICOH COMPANY, LTD.
Kazuhiro EGAWA
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
IMAGE FORMING APPARATUS AND PROCESS CARTRIDGE
Publication number
20090208246
Publication date
Aug 20, 2009
RICOH COMPANY, LTD.
Hidetoshi Kami
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY