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 8837078 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 16, 2014

Filed:

Aug. 02, 2011
Applicants:

Akira Muramatsu, Shizuoka, JP;

Takuji Yamada, Shizuoka, JP;

Inventors:

Akira Muramatsu, Shizuoka, JP;

Takuji Yamada, Shizuoka, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 17/02 (2006.01); G11B 19/20 (2006.01);
U.S. Cl.
CPC ...
G11B 19/2009 (2013.01);
Abstract

A rotating body for a fluid dynamic bearing used for rotating a recording disk that has been mounted therein include: a rotating shaft portion in which a cylindrical portion that serves as a rotating shaft and a protruding portion extended radially outward from one end of the cylindrical portion are formed integrally with each other; and a hub that is to be connected to the end portion near to the outer circumference of the protruding portion and that has a mounting seat portion on which the recording disk is to be mounted.


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Muramatsu, Akira. (2014). Rotating body for fluid dynamic bearing capable of being thinned and being improved in rotational accuracy and method of producing the rotating body for fluid dynamic bearing (U.S. Patent No. 8837078). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8837078

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