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:
Jun. 22, 1982
Filed:
Aug. 14, 1979
Shigeki Morinaga, Hitachi, JP;
Kunio Miyashita, Hitachi, JP;
Tadashi Takahashi, Hitachi, JP;
Takeo Maeda, Hitachi, JP;
Seizi Yamashita, Katsuta, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention relates to a slotless, brushless motor comprising a permanent magnet rotor rotationary together with a shaft and a stationary armature coil disposed in opposition to the rotor. The armature coil comprises a coil portion concentrically wound, an adjacent coil portion formed in sequence from the coil portion and concentrically wound, a coil performed on a plane by a plurality of the coil portions, N coils (N is integer) laid on each other and different in a phase respectively, sheets disposed between said N coils and a supporting member supporting the coils and the sheets made integral.