Is a
Patent attributes
Patent Applicant
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hirokazu Yazaki0
Date of Patent
June 18, 2019
0Patent Application Number
158617080
Date Filed
January 4, 2018
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A speaker module includes a DC-DC converter device including a switching circuit device and a choke coil connected to the switching circuit device and a speaker device that converts an electric signal generated using output voltage from the DC-DC converter device into sound. A magnetic substrate which includes the choke coil and on which the switching circuit device is mounted is disposed between the switching circuit device and the speaker device.
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