Title:
SPEAKER DIAPHRAGM AND HEADPHONE
Document Type and Number:
Japanese Patent JP2020092339
Kind Code:
A
Abstract:
To provide a speaker diaphragm capable of suppressing a decrease in vibration propagation speed while increasing a frequency reproduction range.SOLUTION: A speaker diaphragm 1 according to the present invention includes a mixed layer 11 containing cellulose nanofibers and polyparaphenylene benzobisoxazole fibers.SELECTED DRAWING: Figure 1
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Inventors:
NAKAJIMA HIROSHI
SANO TSUNENORI
SANO TSUNENORI
Application Number:
JP2018228738A
Publication Date:
June 11, 2020
Filing Date:
December 06, 2018
Export Citation:
Assignee:
YAMAHA CORP
International Classes:
H04R7/02; H04R1/10
Domestic Patent References:
| JPH09107595A | 1997-04-22 |
Other References:
田島 健次: ""バクテリアによるセルロース合成"", 日本ゴム協会誌, vol. 85 巻 12 号, JPN6022037009, 2012, JP, pages 406 - 411, ISSN: 0004936551
近藤 哲男: ""セルロース繊維産生微生物をナノビルダーとする3 次元構造体の自動構築"", 繊維学会誌, vol. 61 巻 11 号, JPN6022037010, 2005, JP, pages 290 - 293, ISSN: 0004936552
近藤 哲男: ""セルロース繊維産生微生物をナノビルダーとする3 次元構造体の自動構築"", 繊維学会誌, vol. 61 巻 11 号, JPN6022037010, 2005, JP, pages 290 - 293, ISSN: 0004936552
Attorney, Agent or Firm:
Hajime Amano
Koji Ishida
Koji Ishida