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Katsuhiko Tani
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical information recording medium, method of manufacturing the o...
Patent number
7,507,523
Issue date
Mar 24, 2009
Ricoh Company, Ltd.
Katsuyuki Yamada
G11 - INFORMATION STORAGE
Information
Patent Grant
Lubricant applying unit, process cartridge, image forming apparatus...
Patent number
7,505,728
Issue date
Mar 17, 2009
Ricoh Company, Limited
Daichi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical recording medium, recording material, method of producing o...
Patent number
7,364,781
Issue date
Apr 29, 2008
Ricoh Company, Ltd.
Kazunori Ito
G11 - INFORMATION STORAGE
Information
Patent Grant
Lubricant applying unit, process cartridge, image forming apparatus...
Patent number
7,209,699
Issue date
Apr 24, 2007
Ricoh Company, Limited
Daichi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Optical recording medium, recording material, method of producing o...
Patent number
6,884,487
Issue date
Apr 26, 2005
Ricoh Company, Ltd.
Kazunori Ito
G11 - INFORMATION STORAGE
Information
Patent Grant
Phase-change optical information recording medium
Patent number
6,790,592
Issue date
Sep 14, 2004
Ricoh Company, Ltd.
Makoto Harigaya
G11 - INFORMATION STORAGE
Information
Patent Grant
Photoreceptor, method of evaluating a photoreceptor, and method of...
Patent number
6,649,313
Issue date
Nov 18, 2003
Ricoh Company, Ltd.
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Photoreceptor, method of evaluating the photoreceptor, method of pr...
Patent number
6,534,227
Issue date
Mar 18, 2003
Ricoh Company, Ltd.
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
Heat treatment by light irradiation
Patent number
5,302,230
Issue date
Apr 12, 1994
Ricoh Company, Ltd.
Masumitsu Ino
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
X-ray monochromator and spectral measurement apparatus using the x-...
Patent number
5,199,058
Issue date
Mar 30, 1993
Ricoh Company, Ltd.
Katsuhiko Tani
G01 - MEASURING TESTING
Patents Applications
last 30 patents
Information
Patent Application
LUBRICANT APPLYING UNIT, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS...
Publication number
20070166087
Publication date
Jul 19, 2007
Daichi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical recording medium, recording material, method of producing o...
Publication number
20060188686
Publication date
Aug 24, 2006
Kazunori Ito
G11 - INFORMATION STORAGE
Information
Patent Application
Lubricant applying unit, process cartridge, image forming apparatus...
Publication number
20050191099
Publication date
Sep 1, 2005
Daichi Yamaguchi
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Photoreceptor, method of evaluating a photoreceptor, and method of...
Publication number
20030175606
Publication date
Sep 18, 2003
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical recording medium, recording material, method of producing o...
Publication number
20030143365
Publication date
Jul 31, 2003
Kazunori Ito
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information recording medium, method of manufacturing the o...
Publication number
20020110063
Publication date
Aug 15, 2002
Katsuyuki Yamada
G11 - INFORMATION STORAGE
Information
Patent Application
Phase-change optical information recording medium
Publication number
20020098445
Publication date
Jul 25, 2002
Ricoh Company, Ltd.
Makoto Harigaya
G11 - INFORMATION STORAGE
Information
Patent Application
Photoreceptor, method of evaluting the photoreceptor, method of pro...
Publication number
20020018947
Publication date
Feb 14, 2002
RICOH COMPANY, LTD.
Toshiyuki Kabata
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Optical recording medium, recording material, method of producing o...
Publication number
20010041240
Publication date
Nov 15, 2001
Kazunori Ito
G11 - INFORMATION STORAGE