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:
Apr. 01, 2008
Filed:
Feb. 23, 2006
Applicant:
Koichiro Jujo, Chiba, JP;
Inventor:
Koichiro Jujo, Chiba, JP;
Assignee:
Seiko Instruments Inc., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G04B 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A speed control mechanism has a balance with hairspring mounted to undergo oscillation movement and a regulator structure for adjusting a position of the balance with hairspring. The regulator structure is formed of a nonmagnetic material to prevent reduction of an oscillation angle of the balance with hairspring during oscillation movement thereof.