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.:

US 8254056 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 28, 2012

Filed:

Mar. 16, 2007
Applicants:

Katsuji Ichikawa, Shizuoka, JP;

Mitsuhiko Oguchi, Kanagawa, JP;

Inventors:

Katsuji Ichikawa, Shizuoka, JP;

Mitsuhiko Oguchi, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 33/08 (2006.01); G11B 33/14 (2006.01); H05K 7/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

Embodiments in accordance with the present invention provide a magnetic disk drive that reliably prevents entry of water or other form of liquid through a breathing hole for the enhanced performance, reliability, and the like. In one embodiment, a box body forming part of a hard disk drive (HDD) has a top cover. The top cover includes a breathing hole drilled therein. The breathing hole serves to eliminate any pressure difference between an inside and an outside of the HDD. A fiber waterproof body, which includes a waterproof fiber material or the like, is fitted in a large-diameter hole of the breathing hole. A pore waterproof body, formed by bundling up a large number of slender pores, is mounted in a small-diameter hole of the breathing hole.


Find Patent Forward Citations

Ichikawa, Katsuji. (2012). Air breather with waterproof fiber material for magnetic disk drive (U.S. Patent No. 8254056). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8254056

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