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:
Mar. 15, 2022
Filed:
Jan. 02, 2020
Onkyo Corporation, Osaka, JP;
Norimasa Kitagawa, Osaka, JP;
Mitsuhiko Tokuda, Tokyo, JP;
Yoshinori Nakanishi, Osaka, JP;
Ryuta Shigematsu, Tokyo, JP;
Koichi Sadaie, Osaka, JP;
Yoshitada Takeshima, Osaka, JP;
Onkyo Corporation, Osaka, JP;
Abstract
A diffuser which forms a first acoustic passage that sound waves propagate and which radiates the sound waves to an outer diameter direction between a diaphragm and an annular conical surface of a first reflection member, and forms a second acoustic passage the sound waves which pass the opening of the first reflection member propagate and which radiates the sound waves to an outer diameter direction between the annular concave surface of the first reflection member and a conical surface of a second reflection member.