Title:
ELECTROMAGNETIC TYPE ELECTRICAL SOUND CONVERTOR
Document Type and Number:
Japanese Patent JP52107825
Kind Code:
A
Abstract:
PURPOSE: To make the manufacturing simple by taking the split construction for the permanent magnet for the exciting section, in electronic watches.
Inventors:
Hara, Yoshiaki
Mori, Shigeo
Murakami, Fumikazu
Horikoshi, Ichiro
Takahashi, Muneya
Mori, Shigeo
Murakami, Fumikazu
Horikoshi, Ichiro
Takahashi, Muneya
Application Number:
JP1976000023845
Publication Date:
September 09, 1977
Filing Date:
March 05, 1976
Export Citation:
Assignee:
SEIKO INSTR & ELECTRONICS LTD
International Classes:
G04C21/02; H04R13/00; G04C21/00; H04R13/00; (IPC1-7): G04B23/12; G04C21/12