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Yokohama-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Printer
Patent number
11,167,548
Issue date
Nov 9, 2021
Ricoh Company, Ltd.
Eiji Noda
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method of producing film by inkjet process, and film
Patent number
8,815,140
Issue date
Aug 26, 2014
Ricoh Company, Ltd.
Tamotsu Aruga
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Inkjet image forming apparatus and inkjet image forming method
Patent number
8,807,731
Issue date
Aug 19, 2014
Ricoh Company, Ltd.
Noriyasu Takeuchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ink jet recording method, ink jet recording apparatus, and ink jet...
Patent number
8,740,374
Issue date
Jun 3, 2014
Ricoh Company, Ltd.
Shin-ya Seno
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ultraviolet crosslinking ink and inkjet recording method
Patent number
8,727,522
Issue date
May 20, 2014
Ricoh Company, Ltd.
Tsutomu Maekawa
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Ultraviolet crosslinking inkjet ink, ink cartridge containing same,...
Patent number
8,708,475
Issue date
Apr 29, 2014
Ricoh Company, Ltd.
Tomoko Hasegawa
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Ink jet recording method
Patent number
8,632,174
Issue date
Jan 21, 2014
Ricoh Company, Ltd.
Soh Noguchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Grant
Method and apparatus for initializing optical recording media
Patent number
7,447,138
Issue date
Nov 4, 2008
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Phase-change optical recording medium
Patent number
7,422,838
Issue date
Sep 9, 2008
Ricoh Company, Ltd.
Katsuyuki Yamada
G11 - INFORMATION STORAGE
Information
Patent Grant
Initialization of phase-change optical recording medium
Patent number
RE39901
Issue date
Oct 30, 2007
Ricoh Company, Ltd.
Kyohji Hattori
369 - Dynamic information storage or retrieval
Information
Patent Grant
Method and apparatus for initializing optical recording media
Patent number
6,990,053
Issue date
Jan 24, 2006
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Phase change optical information recording medium
Patent number
6,956,810
Issue date
Oct 18, 2005
Ricoh Company, Ltd.
Eiji Noda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for initializing optical recording media
Patent number
6,775,213
Issue date
Aug 10, 2004
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for initializing optical recording media
Patent number
6,760,291
Issue date
Jul 6, 2004
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording disc
Patent number
6,724,717
Issue date
Apr 20, 2004
Ricoh Company, Ltd.
Eiji Noda
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for initializing optical recording media
Patent number
6,580,672
Issue date
Jun 17, 2003
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and method of information recording/readin...
Patent number
6,469,963
Issue date
Oct 22, 2002
Ricoh Company, Ltd.
Yasuo Sawada
G11 - INFORMATION STORAGE
Information
Patent Grant
Initialization of phase-change optical recording medium
Patent number
6,445,669
Issue date
Sep 3, 2002
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording method for a rewritable phase-change optical reco...
Patent number
6,388,978
Issue date
May 14, 2002
Ricoh Company, Ltd.
Ippei Ogawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method and apparatus for initializing optical recording media
Patent number
6,373,802
Issue date
Apr 16, 2002
Ricoh Company, Ltd.
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Grant
Phase-change information recording medium and optical recording met...
Patent number
6,280,810
Issue date
Aug 28, 2001
Ricoh Company, Ltd.
Yuki Nakamura
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and method of information recording/readin...
Patent number
6,137,769
Issue date
Oct 24, 2000
Ricoh Company, Ltd.
Yasuo Sawada
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium and recording and reproducing method using...
Patent number
5,974,025
Issue date
Oct 26, 1999
Ricoh Company, Ltd.
Katsuyuki Yamada
G11 - INFORMATION STORAGE
Information
Patent Grant
Wavelength converting element and system for recording and reproduc...
Patent number
5,325,348
Issue date
Jun 28, 1994
Ricoh Company, Ltd.
Hideo Maeda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording medium
Patent number
5,213,947
Issue date
May 25, 1993
Ricoh Company, Ltd.
Yutaka Ueda
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information recording medium
Patent number
4,915,997
Issue date
Apr 10, 1990
Ricoh Company, Ltd.
Tetsu Yamamuro
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Optical information recording medium
Patent number
4,861,637
Issue date
Aug 29, 1989
Ricoh Company, Ltd.
Yutaka Ueda
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
PRINTER
Publication number
20210016562
Publication date
Jan 21, 2021
Eiji NODA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
METHOD OF PRODUCING FILM BY INKJET PROCESS, AND FILM
Publication number
20130065024
Publication date
Mar 14, 2013
Tamotsu Aruga
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Application
INK JET RECORDING METHOD, INK JET RECORDING APPARATUS, AND INK JET...
Publication number
20120242768
Publication date
Sep 27, 2012
Shin-ya SENO
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
ULTRAVIOLET CROSSLINKING INK AND INKJET RECORDING METHOD
Publication number
20120176456
Publication date
Jul 12, 2012
RICOH COMPANY, LTD.,
Tsutomu MAEKAWA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ULTRAVIOLET CROSSLINKING INKJET INK, INK CARTRIDGE CONTAINING SAME,...
Publication number
20120147103
Publication date
Jun 14, 2012
Tomoko HASEGAWA
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
INK JET RECORDING METHOD
Publication number
20120086762
Publication date
Apr 12, 2012
RICOH COMPANY, LTD.
Soh NOGUCHI
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
INKJET IMAGE FORMING APPARATUS AND INKJET IMAGE FORMING METHOD
Publication number
20110298876
Publication date
Dec 8, 2011
Noriyasu Takeuchi
B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information
Patent Application
Method and apparatus for initializing optical
Publication number
20060067183
Publication date
Mar 30, 2006
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Application
Phase change optical information recording medium, information reco...
Publication number
20050219983
Publication date
Oct 6, 2005
Eiji Noda
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for initializing optical recording media
Publication number
20040190394
Publication date
Sep 30, 2004
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for initializing optical recording media
Publication number
20030152002
Publication date
Aug 14, 2003
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for initializing optical recording media
Publication number
20030152003
Publication date
Aug 14, 2003
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Application
Phase change optical information recording medium, information reco...
Publication number
20030058763
Publication date
Mar 27, 2003
Ricoh Company, Ltd.
Eiji Noda
G11 - INFORMATION STORAGE
Information
Patent Application
Method and apparatus for initializing optical recording media
Publication number
20020093897
Publication date
Jul 18, 2002
Kyohji Hattori
G11 - INFORMATION STORAGE
Information
Patent Application
Optical recording disc
Publication number
20020085485
Publication date
Jul 4, 2002
Eiji Noda
G11 - INFORMATION STORAGE