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. 27, 2025
Filed:
Oct. 05, 2021
Applicant:
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Inventors:
Eiji Iso, Nagaokakyo, JP;
Yuki Kitashima, Nagaokakyo, JP;
Yoshiharu Satou, Nagaokakyo, JP;
Noriyuki Ookawa, Nagaokakyo, JP;
Hiroshi Marusawa, Nagaokakyo, JP;
Assignee:
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F 27/02 (2006.01); H01F 1/12 (2006.01); H01F 27/255 (2006.01); H01F 27/28 (2006.01); H01F 27/29 (2006.01); H01F 41/02 (2006.01);
U.S. Cl.
CPC ...
H01F 27/022 (2013.01); H01F 1/12 (2013.01); H01F 27/255 (2013.01); H01F 27/2823 (2013.01); H01F 27/292 (2013.01); H01F 41/0246 (2013.01);
Abstract
An inductor includes a body containing soft magnetic powder and resin, a coil embedded in the body, outer electrodes on the body, and a protective film on the surface of the body. The protective film has a thickness of 10 μm or more and contains silica particles and resin. In the protective film, the silica particles have an average diameter of 15 nm to 75 nm, and the percentage by weight of the silica particles to the resin is between 150% and 250%.