Masahiro Ao

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Tochigi, JP

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Patents Grantslast 30 patents

Information Patent Grant
Optical power monitor
- Patent number 7,412,137
- Issue date Aug 12, 2008
- Hitachi Metals, Ltd.
- Masaru Suzuki
- G02 - OPTICS
Information Patent Grant
Variable optical attenuator
- Patent number 7,065,284
- Issue date Jun 20, 2006
- Hitachi Metals, Ltd.
- Masahiro Ao
- G02 - OPTICS
Information Patent Grant
Optical fiber array with lenses
- Patent number 6,931,177
- Issue date Aug 16, 2005
- Hitachi Metals, Ltd.
- Masaru Suzuki
- 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
Method of fabricating a magnetic head by sputter etching
- Patent number 5,052,099
- Issue date Oct 1, 1991
- Hitachi Metals, Ltd.
- Akira Taguchi
- G11 - INFORMATION STORAGE
Information Patent Grant
Floating magnetic head having improved static friction coefficient
- Patent number 5,010,429
- Issue date Apr 23, 1991
- Hitachi Metals, Ltd.
- Akira Taguchi
- G11 - INFORMATION STORAGE

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL POWER MONITOR
- Publication number 20070230872
- Publication date Oct 4, 2007
- Hitachi Metals, Ltd.
- Masaru Suzuki
- G02 - OPTICS
Information Patent Application
UNIDIRECTIONAL OPTICAL POWER MONITOR
- Publication number 20070183716
- Publication date Aug 9, 2007
- Hitachi Metals, Ltd.
- Masaru Suzuki
- G02 - OPTICS
Information Patent Application
Variable optical attenuator
- Publication number 20050047745
- Publication date Mar 3, 2005
- HITACHI METALS, LTD
- Masahiro Ao
- G02 - OPTICS
Information Patent Application
Optical fiber array with lenses
- Publication number 20030142909
- Publication date Jul 31, 2003
- HITACHI METALS, LTD
- Masaru Suzuki
- G02 - OPTICS