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:
Sep. 01, 2020
Filed:
Mar. 20, 2019
Denso Ten Limited, Kobe-shi, Hyogo, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi-ken, JP;
Masashi Nakamura, Kobe, JP;
Masahito Isayama, Kobe, JP;
Takashi Moriki, Kobe, JP;
Kazuhiko Hamada, Kobe, JP;
Isamu Umegaki, Kobe, JP;
Shunsuke Kobayashi, Nagakute, JP;
Koji Sagata, Nisshin, JP;
DENSO TEN Limited, Kobe-shi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
To provide an enclosure structure having relatively high rigidity to a speaker system mounted on a vehicle, and to improve frequency characteristics of sound pressure. The speaker system includes: a hollow framework member extending in a front-back direction of a vehicle; and a speaker unit installed such that an internal space of the framework member is usable as a back cavity. The framework member has a partition member at at least one end of the internal space, and spatial path lengths from the speaker unit to both longitudinal ends of the internal space are substantially the same.