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Tadashi Hanagata
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Data storage library and accessor control method
Patent number
7,158,326
Issue date
Jan 2, 2007
NEC Corporation
Tadashi Hanagata
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape apparatus that duplicates data and stores the duplica...
Patent number
6,940,666
Issue date
Sep 6, 2005
NEC Corporation
Tadashi Hanagata
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Magnetic tape apparatus with forced magnetic tape cleaning process
Patent number
6,580,577
Issue date
Jun 17, 2003
NEC Corporation
Tadashi Hanagata
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic tape apparatus and computer-readable magnetic tape medium
Patent number
6,321,979
Issue date
Nov 27, 2001
NEC Corporation
Tadashi Hanagata
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
Data storage library and accessor control method
Publication number
20050197736
Publication date
Sep 8, 2005
NEC Corporation
Tadashi Hanagata
G11 - INFORMATION STORAGE
Information
Patent Application
Magnetic tape apparatus, control method therefor, and magnetic tape...
Publication number
20030169527
Publication date
Sep 11, 2003
NEC Corporation
Tadashi Hanagata
G06 - COMPUTING CALCULATING COUNTING