Title:
SPEAKER DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/172076
Kind Code:
A1
Abstract:
This speaker device is provided with: a diaphragm (11); an exciter (13) for generating vibration in accordance with an inputted electric signal; and a vibration transmission unit (15), provided between the diaphragm (11) and the exciter (13), for transmitting vibration from the exciter (13) to the diaphragm (11). The loss factor of the diaphragm (11) at 25℃ is 1×10-2 or greater, and the specific elastic modulus of the vibration transmission unit (15) is 20 mm2/s2 or greater.
Inventors:
AKIYAMA Jun (5-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
SAKURAI Kento (5-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
SAKURAI Kento (5-1 Marunouchi 1-chome, Chiyoda-k, Tokyo 05, 〒1008405, JP)
Application Number:
JP2019/007841
Publication Date:
September 12, 2019
Filing Date:
February 28, 2019
Export Citation:
Assignee:
AGC INC. (5-1 Marunouchi 1-chome, Chiyoda-ku Tokyo, 05, 〒1008405, JP)
International Classes:
H04R7/04; H04R7/02; H04R7/08; H04R7/10
Domestic Patent References:
| WO2017175682A1 | 2017-10-12 |
Foreign References:
| JP2013198082A | 2013-09-30 | |||
| JP2010263512A | 2010-11-18 |
Attorney, Agent or Firm:
EIKOH PATENT FIRM, P.C. (Toranomon East Bldg. 10F, 7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, 〒1050003, JP)
Download PDF:
Previous Patent: ARTICLE AND METHOD FOR MANUFACTURING ARTICLE
Next Patent: HOLLOW-FIBER MEMBRANE AND METHOD FOR PRODUCING HOLLOW-FIBER MEMBRANE
Next Patent: HOLLOW-FIBER MEMBRANE AND METHOD FOR PRODUCING HOLLOW-FIBER MEMBRANE