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. 22, 2018
Filed:
Jun. 10, 2015
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Electric Sintered Alloy, Ltd., Takahashi-shi, JP;
Kazushi Kusawake, Itami, JP;
Masato Uozumi, Itami, JP;
Atsushi Sato, Itami, JP;
Koji Yamaguchi, Osaka, JP;
Mamoru Ono, Itami, JP;
Hiroyuki Murase, Itami, JP;
Kazuo Nakamae, Itami, JP;
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Sumitomo Electric Sintered Alloy, Ltd., Takahashi-shi, JP;
Abstract
A low-loss compact and a method for producing the compact are provided. A method for producing a compact by using coated soft magnetic powder that includes coated soft magnetic particles constituted by soft magnetic particles and insulating coatings coating outer peripheries of the soft magnetic particles includes a raw material preparation step and an irradiation step. In the raw material preparation step, a raw compact is prepared by press-forming coated soft magnetic powder. In the irradiation step, part of a surface of the raw compact is irradiated with a laser. Irradiating a part of a surface of a raw compact with laser increases the number of disrupted portions of conductive portions where constituent materials of the soft magnetic particles at the surface of the raw compact have become conductive to each other, and the loss of the compact can be decreased.