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Masaki Katoh
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Kanagawa, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical information recording medium and recording apparatus
Patent number
7,539,098
Issue date
May 26, 2009
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information recording medium
Patent number
7,482,109
Issue date
Jan 27, 2009
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information recording medium and recording apparatus
Patent number
7,440,380
Issue date
Oct 21, 2008
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information recording medium and recording apparatus
Patent number
7,336,583
Issue date
Feb 26, 2008
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical information recording medium, with at least one inconsecuti...
Patent number
7,072,258
Issue date
Jul 4, 2006
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Optical recording apparatus for recording addresses and having a no...
Patent number
7,068,581
Issue date
Jun 27, 2006
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Grant
Phase-change type optical information recording medium
Patent number
6,886,177
Issue date
Apr 26, 2005
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
Optical information recording medium and recording apparatus
Publication number
20060280486
Publication date
Dec 14, 2006
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information recording medium and recording apparatus
Publication number
20060239145
Publication date
Oct 26, 2006
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information recording medium and recording apparatus
Publication number
20050174903
Publication date
Aug 11, 2005
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information recording medium,with at least one inconsecutiv...
Publication number
20040085879
Publication date
May 6, 2004
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information recording medium, with at least one inconsecuti...
Publication number
20040085880
Publication date
May 6, 2004
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Phase change optical recording medium
Publication number
20030043712
Publication date
Mar 6, 2003
Yuki Nakamura
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Application
Optical information recording medium
Publication number
20030044719
Publication date
Mar 6, 2003
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Phase-change type optical information recording medium
Publication number
20020075789
Publication date
Jun 20, 2002
Ricoh Company, Ltd.
Masaki Katoh
G11 - INFORMATION STORAGE
Information
Patent Application
Optical information recording medium and recording apparatus
Publication number
20010021154
Publication date
Sep 13, 2001
Masaki Katoh
G11 - INFORMATION STORAGE