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Hirofumi Ozeki
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Nagoya, JP
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last 30 patents
Information
Patent Grant
Composition for producing low sintering temperature ceramic dielect...
Patent number
RE38491
Issue date
Apr 6, 2004
NGK Spark Plug Co., Ltd.
Hidetoshi Mizutani
501 - Compositions: ceramic
Information
Patent Grant
Composition for producing low sintering temperature ceramic dielect...
Patent number
5,759,935
Issue date
Jun 2, 1998
NGK Spark Co., Ltd.
Hidetoshi Mizutani
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Microwave dielectric ceramic composition
Patent number
5,489,559
Issue date
Feb 6, 1996
NGK Spark Plug Co., Ltd
Hiroshi Katagiri
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Microwave dielectric ceramic composition and preparing method thereof
Patent number
5,457,076
Issue date
Oct 10, 1995
NGK Spark Plug Co., Ltd
Hiroshi Katagiri
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Microwave dielectric ceramic composition
Patent number
5,340,784
Issue date
Aug 23, 1994
NGK Spark Plug Company, Ltd.
Tokiomi Katoh
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Microwave dielectric ceramic composition
Patent number
5,310,710
Issue date
May 10, 1994
NGK Spark Plug Company, Ltd.
Masanori Takase
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Ceramic composition for microwave dielectric
Patent number
5,238,887
Issue date
Aug 24, 1993
NGK Spark Plug Company, Ltd.
Tokiomi Kato
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Particulate lead titanate ceramic and composite material containing...
Patent number
4,874,727
Issue date
Oct 17, 1989
NGK Spark Plug Co., Ltd.
Kanji Ohya
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Piezoelectric composite material
Patent number
4,751,014
Issue date
Jun 14, 1988
NGK Spark Plug Co. Ltd.
Hirofumi Ozeki
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Piezoelectric composite material
Patent number
4,743,392
Issue date
May 10, 1988
NGK Spark Plug Co., Ltd
Hirofumi Ozeki
H01 - BASIC ELECTRIC ELEMENTS