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:
May. 05, 2015
Filed:
Oct. 22, 2010
Tetsuya Matsuda, Chiyoda-ku, JP;
Ryuichi Nishiura, Chiyoda-ku, JP;
Hiroyuki Akita, Chiyoda-ku, JP;
Takeshi Imura, Chiyoda-ku, JP;
Yasuo Fujiwara, Chiyoda-ku, JP;
Yoshinori Shimizu, Chiyoda-ku, JP;
Kazuaki Aono, Chiyoda-ku, JP;
Tetsuya Matsuda, Chiyoda-ku, JP;
Ryuichi Nishiura, Chiyoda-ku, JP;
Hiroyuki Akita, Chiyoda-ku, JP;
Takeshi Imura, Chiyoda-ku, JP;
Yasuo Fujiwara, Chiyoda-ku, JP;
Yoshinori Shimizu, Chiyoda-ku, JP;
Kazuaki Aono, Chiyoda-ku, JP;
Mitsubishi Electric Corporation, Tokyo, JP;
Abstract
A static apparatus includes an iron core which includes a plurality of magnetic plates stacked in one direction and in which a shaft portion having a main surface and a side surface is formed, and a coil wound around the shaft portion. Slits extending in an axial direction of the shaft portion are formed in at least a surface layer magnetic plate constituting the main surface, of the plurality of magnetic plates. Some of the slits are formed in the main surface, at an end portion close to the side surface, at a predetermined formation density. The formation density of the slits is highest at the predetermined formation density, and is reduced as at least one of a minimum distance from the side surface within the main surface and a distance from the main surface on a side close to the slits in the stacking direction is increased.