Title:
ELECTROMAGNETIC TYPE BUZZER
Document Type and Number:
Japanese Patent JPS5348693
Kind Code:
A
Abstract:
PURPOSE: Vibration modes are stabilized and the reduction in size and the increase in sound volume are achieved by burying and integrally forming a weight made of a magnetic material in a plastic diaphragm.
Inventors:
GOMI YOSHIYUKI
Application Number:
JP12400976A
Publication Date:
May 02, 1978
Filing Date:
October 15, 1976
Export Citation:
Assignee:
SUWA SEIKOSHA KK
International Classes:
G10K9/20; G10K9/12; G10K9/13; (IPC1-7): G10K9/12