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:
Dec. 10, 2024
Filed:
Dec. 13, 2019
Applicant:
Nec Corporation, Tokyo, JP;
Inventors:
Takayuki Arakawa, Tokyo, JP;
Yoshitaka Ito, Tokyo, JP;
Assignee:
NEC CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 29/00 (2006.01);
U.S. Cl.
CPC ...
H04R 29/00 (2013.01);
Abstract
[Problem] To evaluate, easily and at low cost, the performance of an earphone device used for ear acoustic certification. [Solution] Holes are provided in a plurality of plate-shaped members (), an artificial eardrum member () corresponds to the eardrum of an individual, and the holes provided in each of the plurality of plate-shaped members () are connected, whereby the plurality of plate-shaped members () are layered over the artificial eardrum member () so as to simulate the external auditory canal of the individual.