Membership
Tour
Register
Log in
Takashi Kitahira
Follow
Person
Fukuoka, JP
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Process for the production of magnetic head sliders
Patent number
5,302,560
Issue date
Apr 12, 1994
Sumitomo Special Metals Co., Ltd.
Toshiaki Wada
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Material for magnetic head substrate member
Patent number
4,902,651
Issue date
Feb 20, 1990
Sumitomo Special Metals, Co.
Toshiaki Wada
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
High-density sintered article of silicon carbid
Patent number
4,874,725
Issue date
Oct 17, 1989
Nippon Tungsten Co., Ltd.
Mitsuhiko Furukawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Magnetic head sliders, materials therefor, and the process for the...
Patent number
4,859,638
Issue date
Aug 22, 1989
Sumitomo Special Metals Co., Ltd.
Toshiaki Wada
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Aluminum oxide substrate material for magnetic head and method for...
Patent number
4,582,812
Issue date
Apr 15, 1986
Nippon Tungsten Co., Ltd.
Mitsuhiko Furukawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Magnetic head slider material and method for producing the same
Patent number
4,438,213
Issue date
Mar 20, 1984
Nippon Tungsten Co., Ltd.
Mitsuhiki Furukawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Magnetic head slider material
Patent number
4,430,440
Issue date
Feb 7, 1984
Sumitomo Special Metal Co. Ltd.
Toshiaki Wada
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Sintered bodies Al.sub.2 O.sub.3 -TiC-TiO.sub.2 continuing yttrium (y)
Patent number
4,356,272
Issue date
Oct 26, 1982
Nippon Tungsten Co., Ltd.
Yutaka Kanemitsu
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Cutting tool material and method for producing cutting tool material
Patent number
4,249,914
Issue date
Feb 10, 1981
Nippon Tungsten Co., Ltd.
Kazuki Ogawa
C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information
Patent Grant
Method for producing a sintered body of high density
Patent number
4,108,652
Issue date
Aug 22, 1978
Nippon Tungsten Co., Ltd.
Kazuki Ogawa
B22 - CASTING POWDER METALLURGY