Invention Grant
- Patent Title: Two-way speaker device having diaphragm of second speaker unit inside voice coil bobbin of first speaker unit
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Application No.: US15534176Application Date: 2015-12-08
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Publication No.: US10264347B2Publication Date: 2019-04-16
- Inventor: Kenichi Oshima , Koji Takayama , Hirohito Ohno , Hiroyuki Dohi , Hayami Kondo
- Applicant: Pioneer Corporation , Tohoku Pioneer Corporation
- Applicant Address: JP Tokyo JP Yamagata
- Assignee: PIONEER CORPORATION,TOHOKU PIONEER CORPORATION
- Current Assignee: PIONEER CORPORATION,TOHOKU PIONEER CORPORATION
- Current Assignee Address: JP Tokyo JP Yamagata
- Agency: Young & Thompson
- Priority: JP2014-247601 20141208
- International Application: PCT/JP2015/084395 WO 20151208
- International Announcement: WO2016/093227 WO 20160616
- Main IPC: H04R1/24
- IPC: H04R1/24 ; H04R7/12 ; H04R7/18 ; H04R9/02 ; H04R9/06 ; H04R7/06

Abstract:
Provided is a speaker device achieving thinning and cost reduction. The speaker device includes a first speaker unit having a first diaphragm connected to a voice coil bobbin, and a second speaker unit having a second diaphragm provided inside the voice coil bobbin. When a sound emission direction P of the first speaker unit and the second speaker unit is upward and an opposite direction of the sound emission direction P is downward, a position of an upper end A of the first diaphragm is substantially equal to an upper end B of the second diaphragm.
Public/Granted literature
- US20170359647A1 SPEAKER DEVICE Public/Granted day:2017-12-14
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