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. 09, 2025
Filed:
Feb. 28, 2023
Kabushiki Kaisha Toshiba, Tokyo, JP;
Japan Aerospace Exploration Agency, Tokyo, JP;
Tatsuhiko Goto, Kawasaki Kanagawa, JP;
Akihiko Enamito, Kawasaki Kanagawa, JP;
Kenichiro Nagai, Chofu Tokyo, JP;
Osamu Nishimura, Kawasaki Kanagawa, JP;
Takahiro Hiruma, Tokyo, JP;
Tetsuya Doi, Kokubunji Tokyo, JP;
Keiichiro Iwanaga, Kokubunji Tokyo, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Japan Aerospace Exploration Agency, Chofu, JP;
Abstract
According to one embodiment, a sound absorption device includes: a first plate having a plurality of first holes; a second plate facing the first plate in a first direction; a first frame connecting the first plate and the second plate; and a third plate supported by the first frame so as to vibrate in the first direction within the first frame. A first space is formed in the first frame between the first plate and the third plate. A second space is formed in the first frame between the second plate and the third plate. The third plate includes a first portion and a second portion, the second portion having a higher vibration speed than the first portion.