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:
Nov. 30, 2010
Filed:
Sep. 24, 2009
Sang Jae Song, Gyunggi-do, KR;
Woo Chul Shin, Gyunggi-do, KR;
Young Jin Bae, Gyunggi-do, KR;
Song Bon OH, Gyunggi-do, KR;
Sang Jae Song, Gyunggi-do, KR;
Woo Chul Shin, Gyunggi-do, KR;
Young Jin Bae, Gyunggi-do, KR;
Song Bon Oh, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-Do, KR;
Abstract
Disclosed herein is a scanner motor. The scanner motor includes a rotor case for mounting a magnetic disc or polygon mirror thereon. A rotating shaft is rotatable and axially supports the rotor case. A hollow cylindrical bearing rotatably supports the rotating shaft. A bearing holder is mounted to the outer circumference of the bearing to support it. A stator is mounted to the outer circumference of the bearing holder to form an electric field which rotates the rotor case. A housing shaft is fitted over the outer circumference of the rotating shaft, seated on the rotor case, and coupled at its outer circumference to the polygon mirror. A hole is formed in the housing shaft, absorbs stress occurring during welding, and reduces variation in levelness of the polygon mirror. A coupling part couples the edge of the hole with the polygon mirror.