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. 09, 2010
Filed:
Sep. 19, 2007
Applicants:
Seiichi Yamamoto, Kyoto, JP;
Kenichi Niiyama, Kyoto, JP;
Nobuo Nakamachi, Kyoto, JP;
Yoshiki Tanaka, Kyoto, JP;
Shinsuke Takagimoto, Kyoto, JP;
Inventors:
Seiichi Yamamoto, Kyoto, JP;
Kenichi Niiyama, Kyoto, JP;
Nobuo Nakamachi, Kyoto, JP;
Yoshiki Tanaka, Kyoto, JP;
Shinsuke Takagimoto, Kyoto, JP;
Assignee:
Rohm Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11B 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A driver IChas a bias terminalvia which a bias voltage fed from a microcomputerto drive and control a loading motoris fed in and a bias terminalvia which a bias voltage fed from a DSPto drive and control a focus coil, a tracking coil, a sled motor, and a spindle motoris fed in.