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Fuminori Takeya
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Iwakura, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Glass-ceramics having hexacelsian as a primary crystal phase, magne...
Patent number
6,589,893
Issue date
Jul 8, 2003
NGK Insulators, Ltd.
Masahiro Abe
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Substrates for magnetic discs, magnetic discs and process for produ...
Patent number
6,086,977
Issue date
Jul 11, 2000
NGK Insulators, Ltd.
Tomio Suzuki
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Substrates for magnetic discs, magnetic discs and process for produ...
Patent number
6,048,589
Issue date
Apr 11, 2000
NGK Insulators, Ltd.
Tomio Suzuki
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Process for manufacturing a crystallized glass substrate for magnet...
Patent number
5,788,731
Issue date
Aug 4, 1998
NGK Insulators, Ltd.
Tomio Suzuki
C03 - GLASS MINERAL OR SLAG WOOL
Information
Patent Grant
Magnetic head core having ferrite member reinforced by non-magnetic...
Patent number
5,486,969
Issue date
Jan 23, 1996
NGK Insulators, Ltd.
Fuminori Takeya
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head core
Patent number
5,138,508
Issue date
Aug 11, 1992
NGK Insulators, Ltd.
Soichiro Matsuzawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Head core slider having an air bearing surface of a particular conf...
Patent number
5,107,382
Issue date
Apr 21, 1992
NGK Insulators, Ltd.
Soichiro Matsuzawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of producing a negative-pressure type magnetic head slider
Patent number
5,104,483
Issue date
Apr 14, 1992
NGK Insulators, Ltd.
Fuminori Takeya
G11 - INFORMATION STORAGE
Information
Patent Grant
Magnetic head core utilizing a non-magnetic layer
Patent number
5,025,343
Issue date
Jun 18, 1991
NGK Insulators, Ltd.
Shinzi Iida
G11 - INFORMATION STORAGE
Information
Patent Grant
Negative-pressure type magnetic head slider, and method of producin...
Patent number
5,019,930
Issue date
May 28, 1991
NGK Insulators, Ltd.
Fuminori Takeya
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for producing a magnetic head core
Patent number
5,014,414
Issue date
May 14, 1991
NGK Insulators, Ltd.
Soichiro Matsuzawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method for producing a head core slider
Patent number
5,012,572
Issue date
May 7, 1991
NGK Insulators, Ltd.
Soichiro Matsuzawa
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of producing a core for magnetic head
Patent number
4,982,065
Issue date
Jan 1, 1991
NGK Insulators, Ltd.
Hideto Sandaiji
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for producing magnetic head core
Patent number
4,967,466
Issue date
Nov 6, 1990
NGK Insulators, Ltd.
Fuminori Takeya
G11 - INFORMATION STORAGE
Information
Patent Grant
Method of producing head core slider for rigid magnetic disk drive,...
Patent number
4,948,460
Issue date
Aug 14, 1990
NGK Insulators, Ltd.
Hideto Sandaiji
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of forming recessed profile on ferrite single crystal by che...
Patent number
4,875,970
Issue date
Oct 24, 1989
NGK Insulators, Ltd.
Fuminori Takeya
C30 - CRYSTAL GROWTH
Patents Applications
last 30 patents
Information
Patent Application
Glass-ceramics having hexacelsian as a primary crystal phase, magne...
Publication number
20010041657
Publication date
Nov 15, 2001
NGK Insulators, Ltd.
Masahiro Abe
C03 - GLASS MINERAL OR SLAG WOOL