Title:
DIAPHRAGM FOR SPEAKER, MANUFACTURING METHOD OF DIAPHRAGM FOR SPEAKER, AND SPEAKER
Document Type and Number:
Japanese Patent JP2022045715
Kind Code:
A
Abstract:
To obtain a diaphragm for a speaker with high sound pressure, and a speaker.SOLUTION: A diaphragm 1 for a speaker includes a reinforcing fiber layer 10 in which carbon fibers 11 are randomly oriented in a thermoplastic resin, and a thermoplastic resin layer 20 arranged so as to sandwich the reinforcing fiber layer 10. It is preferable that the basis weight of the diaphragm 1 for the speaker is 60 g/m2 or more and 120 g/m2 or less.SELECTED DRAWING: Figure 2
Inventors:
SAKAI RYUTA
NAKAHARA KAZUMI
KUROYANAGI KAZUSHI
SHIGETA AKIRA
INAGAKI KAZUYUKI
KUMAKURA HIROYUKI
DOI SHINICHI
NAKAHARA KAZUMI
KUROYANAGI KAZUSHI
SHIGETA AKIRA
INAGAKI KAZUYUKI
KUMAKURA HIROYUKI
DOI SHINICHI
Application Number:
JP2020151453A
Publication Date:
March 22, 2022
Filing Date:
September 09, 2020
Export Citation:
Assignee:
MIZUNO KK
MIZUNO TECHNICS KK
JVC KENWOOD CORP
OJI HOLDINGS CORP
MIZUNO TECHNICS KK
JVC KENWOOD CORP
OJI HOLDINGS CORP
International Classes:
H04R7/02; H04R31/00
Attorney, Agent or Firm:
Makoto Onda
Hironobu Onda
Hironobu Onda