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 7480981 B1

PDF
Full Text
Expired
Date of Patent:
Jan. 27, 2009

Filed:

Aug. 10, 2004
Applicants:

Akio Takada, Singapore, SG;

Ching Biing Yeo, Singapore, SG;

Kanzo Okada, Singapore, SG;

Shun Kayama, Singapore, SG;

Inventors:

Akio Takada, Singapore, SG;

Ching Biing Yeo, Singapore, SG;

Kanzo Okada, Singapore, SG;

Shun Kayama, Singapore, SG;

Assignee:

Sony Corporation, Tokyo, JP;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/105 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of producing hard disk drives of reduced size including using a one or more MEMS spindle motors, and one or more magnetic heads. Each spindle motor includes a rotor and a stator. The rotor carries a film of magnetic film, and a head is arranged to communicate data with the magnetic film. The rotors are formed by MEMS technology. Rotor elements are formed within a substrate, and the substrate is subsequently cut to simulate the rotor elements, and turn them into rotors.


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