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Fumio Nitanda
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Fukaya, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Optical switching device comprising plural mechanical optical switches
Patent number
6,870,984
Issue date
Mar 22, 2005
Hitachi Metals, Ltd.
Yoshiaki Uchida
G02 - OPTICS
Information
Patent Grant
Optical switch
Patent number
6,549,689
Issue date
Apr 15, 2003
Hitachi Metals, Ltd.
Shinji Furuichi
G02 - OPTICS
Information
Patent Grant
Short-wavelength laser light source
Patent number
5,854,870
Issue date
Dec 29, 1998
Hitachi, Ltd.
Sten Helmfrid
G02 - OPTICS
Information
Patent Grant
Floating magnetic head
Patent number
5,771,133
Issue date
Jun 23, 1998
Hitachi Metals, Ltd.
Ryo Goto
G11 - INFORMATION STORAGE
Information
Patent Grant
Second harmonic generating element and the production method thereof
Patent number
5,412,502
Issue date
May 2, 1995
Hitachi Metals, Ltd.
Satoshi Makio
G02 - OPTICS
Information
Patent Grant
Lithium tantalate monocrystal, monocrystal substrate, and photo ele...
Patent number
5,359,452
Issue date
Oct 25, 1994
Hitachi Metals, Ltd.
Fumio Nitanda
C30 - CRYSTAL GROWTH
Information
Patent Grant
Method of producing a fly-type composite magnetic head with appropr...
Patent number
5,086,553
Issue date
Feb 11, 1992
Hitachi Metals, Ltd.
Ryo Goto
G11 - INFORMATION STORAGE
Information
Patent Grant
Flying-type composite magnetic head with appropriate bonding glasse...
Patent number
5,016,129
Issue date
May 14, 1991
Hitachi Metals, Ltd.
Ryo Goto
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic core for flying-type composite magnetic head
Patent number
4,999,726
Issue date
Mar 12, 1991
Hitachi Metals, Ltd.
Ryo Goto
G11 - INFORMATION STORAGE
Patents Applications
last 30 patents
Information
Patent Application
OPTICAL SWITCHING DEVICE COMPRISING PLURAL MECHANICAL OPTICAL SWITCHES
Publication number
20050063640
Publication date
Mar 24, 2005
Hitachi Metals, Ltd.
Yoshiaki Uchida
G02 - OPTICS
Information
Patent Application
Optical switch
Publication number
20020097949
Publication date
Jul 25, 2002
Shinji Furuichi
G02 - OPTICS