Title:
電気音響変換器
Document Type and Number:
Japanese Patent JPWO2009107305
Kind Code:
A
Inventors:
丈井 Toshitaka
Application Number:
JP2008072546W
Publication Date:
September 03, 2009
Filing Date:
December 11, 2008
Export Citation:
Assignee:
丈井 Toshitaka
International Classes:
H04R1/10; H01L41/08; H04R17/00; H01L41/09; H04R3/12