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. 19, 2019
Filed:
Jul. 10, 2018
Applicant:
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Inventors:
Tetsushi Itano, Osaka, JP;
Seiji Takagi, Osaka, JP;
Kenji Endou, Fukushima, JP;
Kazuaki Nishimura, Okayama, JP;
Makoto Kurozawa, Mie, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 7/12 (2006.01); H04R 31/00 (2006.01); B29C 45/00 (2006.01); B29C 45/56 (2006.01); B29K 23/00 (2006.01); B29K 309/10 (2006.01); B29K 509/08 (2006.01); B29L 31/38 (2006.01);
U.S. Cl.
CPC ...
H04R 7/12 (2013.01); H04R 31/003 (2013.01); B29C 45/0005 (2013.01); B29C 45/0013 (2013.01); B29C 45/561 (2013.01); B29C 2045/0008 (2013.01); B29K 2023/12 (2013.01); B29K 2309/10 (2013.01); B29K 2509/08 (2013.01); B29L 2031/38 (2013.01); H04R 2307/023 (2013.01); H04R 2307/025 (2013.01); H04R 2307/029 (2013.01);
Abstract
A loudspeaker diaphragm includes resin and hollow glass member particles contained in the resin. Further, a loudspeaker includes the above-described loudspeaker diaphragm, a magnetic circuit, a frame connected to the magnetic circuit, and a voice coil body having one end connected to the loudspeaker diaphragm and the other end disposed inside a magnetic gap in the magnetic circuit.