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:
Nov. 20, 2007
Filed:
Sep. 03, 2002
Applicants:
Toshifumi Tajima, Tokyo, JP;
Toshiyuki Nishiguchi, Tokyo, JP;
Nobuo Saito, Tokyo, JP;
Akira Morita, Tokyo, JP;
Inventors:
Toshifumi Tajima, Tokyo, JP;
Toshiyuki Nishiguchi, Tokyo, JP;
Nobuo Saito, Tokyo, JP;
Akira Morita, Tokyo, JP;
Assignee:
Nippon Hoso Kyokai, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A chip microphone implemented as a single silicon-based chip includes a diaphragm which includes a vibration portion that vibrates in response to sound pressures, a support block which is formed on the diaphragm, excluding at least the vibration portion to provide a vibration space, and a back plate which is formed on the support block and over the vibration space, thereby facing the vibration portion of the diaphragm across the vibration space.