Akira Urai

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Miyaga, JP

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Patents Grantslast 30 patents

Information Patent Grant
Magnetic head with (411) plane single crystal ferrite medium facing...
- Patent number 6,222,701
- Issue date Apr 24, 2001
- Sony Corporation
- Takashi Tamura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,875,081
- Issue date Feb 23, 1999
- Sony Corporation
- Atsushi Suzuki
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,764,455
- Issue date Jun 9, 1998
- Sony Corporation
- Toru Matsunaga
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head
- Patent number 5,663,857
- Issue date Sep 2, 1997
- Sony Corporation
- Tatsuo Kumura
- G11 - INFORMATION STORAGE
Information Patent Grant
Magnetic head having Cao-TiO.sub.2 -NiO ceramic with specified CaO/...
- Patent number 5,610,786
- Issue date Mar 11, 1997
- Sony Corporation
- Fusashige Tokutake
- B82 - NANO-TECHNOLOGY
Information Patent Grant
Magnetic head having a notched magnetic core portion with a zero de...
- Patent number 5,276,575
- Issue date Jan 4, 1994
- Sony Corporation
- Tomio Kobayashi
- G11 - INFORMATION STORAGE