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:
Aug. 15, 2017
Filed:
Aug. 06, 2015
Applicant:
Ricoh Company, Ltd., Tokyo, JP;
Inventors:
Michiaki Shinotsuka, Kanagawa, JP;
Tsutomu Kawase, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04R 9/06 (2006.01); H04R 1/34 (2006.01); H04R 9/04 (2006.01); H04R 7/12 (2006.01); H04R 19/01 (2006.01); H04R 19/00 (2006.01); H04R 1/02 (2006.01);
U.S. Cl.
CPC ...
H04R 1/34 (2013.01); H04R 7/12 (2013.01); H04R 9/047 (2013.01); H04R 1/028 (2013.01); H04R 7/122 (2013.01); H04R 19/005 (2013.01); H04R 19/013 (2013.01); H04R 2307/025 (2013.01);
Abstract
An energy conversion apparatus including a permanent magnet fixed to a predetermined region; and a diaphragm arranged on the permanent magnet, the diaphragm including a coil having a conductor wire pattern formed on the diaphragm, wherein the diaphragm includes a slit formed in the diaphragm.