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:
Jun. 25, 2013
Filed:
Apr. 17, 2012
Rikuo Takano, Tukubashi, JP;
Kiyoshi Sugiyama, Mitaka, JP;
Toshimi Fukuoka, Yokohama, JP;
Masatoshi Ono, Tsukuba, JP;
Ryusuke Horibe, Hirakata, JP;
Fuminori Tanaka, Suita, JP;
Hideki Choji, Muko, JP;
Takeshi Inoda, Tsukuba, JP;
Rikuo Takano, Tukubashi, JP;
Kiyoshi Sugiyama, Mitaka, JP;
Toshimi Fukuoka, Yokohama, JP;
Masatoshi Ono, Tsukuba, JP;
Ryusuke Horibe, Hirakata, JP;
Fuminori Tanaka, Suita, JP;
Hideki Choji, Muko, JP;
Takeshi Inoda, Tsukuba, JP;
Abstract
A microphone unit includes: a housing which has an inner space; a partition member which is provided in the housing and divides the inner space into a first space and a second space, the partition member being at least partially formed of a diaphragm; and an electrical signal output circuit which outputs an electrical signal based on vibrations of the diaphragm. In the housing, a first through-hole through which the first space communicates with an outer space of the housing and a second through-hole through which the second space communicates with the outer space are formed.