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:
Apr. 27, 2010
Filed:
Jul. 27, 2006
Norio Takahashi, Kanagawa, JP;
Kazuto Sakai, Kanagawa, JP;
Yoshio Hashidate, Kanagawa, JP;
Masanori Arata, Kanagawa, JP;
Wataru Ito, Mie, JP;
Masakatsu Matsubara, Mie, JP;
Takashi Hanai, Mie, JP;
Yasuo Hirano, Mie, JP;
Norio Takahashi, Kanagawa, JP;
Kazuto Sakai, Kanagawa, JP;
Yoshio Hashidate, Kanagawa, JP;
Masanori Arata, Kanagawa, JP;
Wataru Ito, Mie, JP;
Masakatsu Matsubara, Mie, JP;
Takashi Hanai, Mie, JP;
Yasuo Hirano, Mie, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Industrial Products Manufacturing Corporation, Mie-gun, JP;
Abstract
Included are a ring-shaped stator and a ring-shaped rotor arranged inside the stator; the stator includes a stator core with armature windings; the rotor includes a rotor core in which a plurality of permanent magnets are inserted and cooling holes are formed, a coolant flowing in each of the cooling holes; and each of the cooling holes is formed so as to have a sectional view which is a convex toward the outer periphery thereof.