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. 22, 2016
Filed:
Dec. 26, 2012
Korea Atomic Energy Research Institute, Daejeon, KR;
Young Uk Jeong, Daejeon, KR;
Ki Tae Lee, Daejeon, KR;
Seong Hee Park, Daejeon, KR;
Shang In Shin, Daejeon, KR;
Kyuha Jang, Daejeon, KR;
Jeong Ho Moon, Daejeon, KR;
Nikolay Vinokurov, Daejeon, KR;
Abstract
A variable-period permanent-magnet undulator which is applicable not only to a planar undulator but also to a helical undulator, in which permanent-magnets and ferromagnetic substances are alternately arranged, and the ferromagnetic substance interposed between the permanent-magnets is saturated to thus enable the magnets to be effectively spaced apart from each other by the repulsive force between the permanent-magnets, thereby adjusting the period of the magnetic field in an easy and precise manner.