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.

Date of Patent:
May. 27, 2003

Filed:

Jan. 28, 2002
Applicant:
Inventors:

Hidenobu Ito, Tokyo, JP;

Kouichi Takamune, Tokyo, JP;

Takao Mizutani, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 7/06 ;
U.S. Cl.
CPC ...
H02K 7/06 ;
Abstract

A cylinder servo motor includes a servo motor having a rotor and a stator; a cylinder servo main unit which is connected to a rotary shaft of the rotor of the servo motor by way of a ball screw nut and which has a ball screw shaft, the ball screw shaft moving in an axial direction; a rotation sensor for detecting a rotary position of the servo motor; and control means for controlling the rotation sensor and the servo motor. The cylinder servo motor main unit, the rotation sensor, and the control means are integrated together, thereby providing a cylinder servo motor which obviates a necessity of wiring a line between the servo motor, the rotation sensor, and the control device section at a location to which the cylinder servo motor is to be shipped.


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