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. 17, 2007
Filed:
Jan. 24, 2006
SE Hyun Rhyu, Bucheon-si, KR;
IN Soung Jung, Seoul, KR;
Jin Hur, Seongnam-si, KR;
Ha Gyeong Sung, Suwon-si, KR;
Jung Moo Seo, Seoul, KR;
Jun Hyuk Choi, Seoul, KR;
Joo Han Kim, Seoul, KR;
Se Hyun Rhyu, Bucheon-si, KR;
In Soung Jung, Seoul, KR;
Jin Hur, Seongnam-si, KR;
Ha Gyeong Sung, Suwon-si, KR;
Jung Moo Seo, Seoul, KR;
Jun Hyuk Choi, Seoul, KR;
Joo Han Kim, Seoul, KR;
Abstract
A claw-pole PM stepping motor includes a module that is formed in such a manner that a first driving unit and a second driving unit are symmetrically arranged with respect to a first claw-pole and a second claw-pole each oppositely disposed at a main yoke member internally disposed to substantially divide an inside of a housing, an inner portion of which is rotatably inserted and supported by a rotary shaft, and the first driving unit and the second driving unit have magnet rotors coaxially arranged to generate electromagnetic force; sub-yoke members; and coil bobbins. The claw-pole PM stepping motor is exempted from a structure where coil bobbins are concentrically arranged at a periphery of magnet rotors, and instead the coil bobbins are coaxially arranged and shifted from each other from the corresponding magnet rotors, such that a miniaturized motor with a reduced outer diameter can be embodied.