Title:
【発明の名称】スピーカ用振動板
Document Type and Number:
Japanese Patent JP2942068
Kind Code:
B2
Abstract:
The diaphragm of the electroacoustic transducer is made of a material in which fibers having at least two different radii taken out of wood are mixed together. Two mean radii A and B, among different mean radii of the fibers are set to satisfy the relationship: 0.5xA
Inventors:
SUZUKI AKIHISA
Application Number:
JP20807092A
Publication Date:
August 30, 1999
Filing Date:
August 04, 1992
Export Citation:
Assignee:
SHAAPU KK
International Classes:
B27N3/04; D21J3/12; H04R7/02; B27L11/08; (IPC1-7): H04R7/02; B27L11/08; B27N3/04
Domestic Patent References:
| JP61144199A | ||||
| JP5591294A | ||||
| JP3120999A |
Attorney, Agent or Firm:
Kenzo Hara