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:
Jun. 03, 1997
Filed:
Sep. 16, 1994
Teruyoshi Higashiya, Kanagawa-ken, JP;
Tuneyuki Hasegawa, Odawarra, JP;
Masayuki Katsumoto, Kodaira, JP;
Yuichi Otani, Yokohama, JP;
Mituhiko Oguchi, Ebina, JP;
Hiroyuki Sugimoto, Odawara, JP;
Tetsuji Higashijima, Odawara, JP;
Takashi Hamada, Odawara, JP;
Kinya Eguchi, Fujisawa, JP;
Hideaki Amano, Odawara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A magnetic disc apparatus includes a casing for defining a sealed space, a magnetic disc disposed within the space, a spindle to which the magnetic disc is fixed, a motor for rotating the spindle, a flying head slider for writing and/or reading information in and/or from the magnetic disc and a carriage for translating the flying head slider. The magnetic disc apparatus incorporates an organic chemical compound capable of suppressing siloxane from being chemically changed to silicon oxide. The organic chemical compound contains at least one of monoalkyl-substituted benzene, dialkyl-substituted benzene, trialkyl-substituted benzene, fatty acid, fatty ester, alkyl ester of aromatic acid, thiazoles and phenols.