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Musashimurayama, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Laser interferometer displacement measuring system, exposure appara...
Patent number
6,839,142
Issue date
Jan 4, 2005
Hitachi, Ltd.
Fumio Isshiki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Laser interferometer displacement measuring system, exposure appara...
Patent number
6,687,013
Issue date
Feb 3, 2004
Hitachi, Ltd.
Fumio Isshiki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Video information recording and reproducing apparatus
Patent number
6,334,022
Issue date
Dec 25, 2001
Hitachi, Ltd.
Akihiko Ohba
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Grant
Radio paging system with voice transfer function and radio pager
Patent number
5,842,123
Issue date
Nov 24, 1998
Hitachi, Ltd.
Nobuo Hamamoto
G08 - SIGNALLING
Information
Patent Grant
Radio paging system with voice transfer function and radio pager
Patent number
5,412,719
Issue date
May 2, 1995
Hitachi, Ltd.
Nobuo Hamamoto
G08 - SIGNALLING
Patents Applications
last 30 patents
Information
Patent Application
Laser interferometer displacement measuring system, exposure appara...
Publication number
20040057055
Publication date
Mar 25, 2004
Fumio Isshiki
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Application
Laser interferometer displacement measuring system, exposure appara...
Publication number
20020048026
Publication date
Apr 25, 2002
Fumio Isshiki
H01 - BASIC ELECTRIC ELEMENTS