The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 07, 1984
Filed:
May. 28, 1982
Applicant:
Inventors:
Toshiaki Wada, Osaka, JP;
Mitsuhiko Furukawa, Fukuoka, JP;
Michito Miyahara, Fukuoka, JP;
Masaharu Shiroyama, Fukuoka, JP;
Kiyohito Misumi, Kurume, JP;
Takashi Kitahira, Fukuoka, JP;
Assignees:
Sumitomo Special Metal Co. Ltd., Osaka, JP;
Nippon Tungsten Co., Ltd., Fukuoka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ; C04B / ; B23B / ;
U.S. Cl.
CPC ...
501105 ; 264 56 ; 264325 ; 264332 ; 360103 ; 360122 ; 501104 ; 501127 ; 501134 ; 501135 ; 501152 ;
Abstract
A material for magnetic head sliders comprises a mixed powder consisting of 40 to 80% by weight of Al.sub.2 O.sub.3 and 20 to 60% by weight of TiO.sub.2, and further contains, per 100 parts by weight of the Al.sub.2 O.sub.3 and TiO.sub.2 mixture, 0.5 to 5 parts by weight of at least one of CaO, MgO and Y.sub.2 O.sub.3, and 0.5 to 10 parts by weight of ZrO.sub.2.