Title:
場内拡声装置
Document Type and Number:
Japanese Patent JP5022468
Kind Code:
B2
Inventors:
Sumiu Sakauchi
Yusuke Hioka
Yusuke Hioka
Application Number:
JP2010096141A
Publication Date:
September 12, 2012
Filing Date:
April 19, 2010
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04R3/02; H04M1/60; H04M3/56
Domestic Patent References:
| JP2000023129A | ||||
| JP2007060460A | ||||
| JP2008092331A | ||||
| JP2000092588A | ||||
| JP5268692A |
Attorney, Agent or Firm:
Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro
Taku Kusano
Yukio Nakamura
Yoshimura Munehiro
Taku Kusano