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. 30, 2016
Filed:
Jun. 04, 2014
Applicant:
Michiaki Shinotsuka, Kanagawa, JP;
Inventor:
Michiaki Shinotsuka, Kanagawa, JP;
Assignee:
Ricoh Company, Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H04R 15/00 (2006.01); H04R 3/00 (2006.01); H04R 1/00 (2006.01); H04R 9/00 (2006.01); H04R 9/04 (2006.01); H02K 41/025 (2006.01);
U.S. Cl.
CPC ...
H04R 15/00 (2013.01); H04R 1/00 (2013.01); H04R 3/00 (2013.01); H04R 9/00 (2013.01); H04R 9/047 (2013.01); H02K 41/025 (2013.01); H04R 2201/003 (2013.01);
Abstract
Provided is an energy conversion apparatus including a diaphragm on which a coil of a lead pattern is formed, a magnet substrate configured to generate a magnetic field towards the coil on the diaphragm, and a magnetic film configured to generate magnetic force between the magnetic film and the magnet substrate to support the diaphragm therebetween.