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:
Feb. 04, 2020
Filed:
Sep. 16, 2014
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Takezo Hatanaka, Ibaraki, JP;
Hisashi Tsuda, Ibaraki, JP;
NITTO DENKO CORPORATION, Osaka, JP;
Abstract
Frequent replacement of a battery is avoided even if power consumption is large, and the structure is simplified and waterproofness is improved. Furthermore, cost reduction is achieved because driving components are selectable from components with variously different operating voltages. A hearing aid includes a secondary battery having a nominal voltage higher than a nominal voltage of an air battery, driving components driven by power at different voltages supplied from the secondary battery, and a transformation unit configured to output the charging power of the secondary battery at a voltage suitable for driving each driving component.