Title:
スピーカおよびスピーカの製造方法
Document Type and Number:
Japanese Patent JP7340910
Kind Code:
B2
Abstract:
A speaker includes a diaphragm including a first layer defining a coil receiving opening therein, and a second layer attached to the first layer and traversing the coil receiving opening. The speaker further comprises a coil having an end extending into the coil receiving opening and abutting against a surface of the second layer that traverses the coil receiving opening. Thus, transmission efficiency between the coil and diaphragm is improved, which improves the audio quality of the speaker.
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Inventors:
Koji Okazaki
Masahiro Tobiyo
Masahiro Tobiyo
Application Number:
JP2018132365A
Publication Date:
September 08, 2023
Filing Date:
July 12, 2018
Export Citation:
Assignee:
Yamaha Corporation
International Classes:
H04R7/12; H04R9/04; H04R7/20; H04R9/02
Domestic Patent References:
| JP2010258537A | ||||
| JP2000261884A | ||||
| JP2011024069A |
Attorney, Agent or Firm:
Kazuzumi Nishizawa
Tomoo Katsumata
Eisuke Ito
Yuko Kashino
Tomoo Katsumata
Eisuke Ito
Yuko Kashino