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. 01, 1977
Filed:
Feb. 19, 1975
Applicant:
Inventor:
Yasuichi Nakagawa, Tokyo, JA;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 / ; 310156 ; 58 2 / ;
Abstract
An electric micro motor for a timepiece comprises a rotor having a portion formed of a permanent magnet and a pair of magnetic stator pieces disposed in spaced-apart relationship with the rotor disposed therebetween. A pair of non-magnetic coupling members couple together the stator pieces and rotatably support the rotor. The rotor-stator pieces-coupling members assembly is contained within a magnetic cylinder so as to shield the micro motor from external magnetic noise.