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:
Aug. 09, 2011
Filed:
Aug. 08, 2006
Kunio Miyashita, Nagano, JP;
Junji Koyama, Nagano, JP;
Muneo Mitamura, Nagano, JP;
Yasuo Sawamura, Nagano, JP;
Kunio Miyashita, Nagano, JP;
Junji Koyama, Nagano, JP;
Muneo Mitamura, Nagano, JP;
Yasuo Sawamura, Nagano, JP;
Harmonic Drive Systems Inc., Tokyo, JP;
Abstract
A multiple-rotation absolute-value encoder of a geared motor, wherein the geared motor () reduces the rotational speed of a motor shaft () and takes it out from a gear shaft () to drive a machine device () in an operating range corresponding to two rotations of the gear shaft (). The multiple-rotation absolute-value encoder () fitted to the geared motor () is made up of a gear shaft absolute value encoder () for detecting the absolute position of the gear shaft () and a load side absolute value encoder () having a two-pole magnet () and a magnetic sensor () rotating at a rotational speed reduced to half the rotational speed of the gear shaft () through the magnetic gear ().