Title:
【発明の名称】電気音響変換器
Document Type and Number:
Japanese Patent JP2836272
Kind Code:
B2
Inventors:
AKAMA FUMINORI
Application Number:
JP5754291A
Publication Date:
December 14, 1998
Filing Date:
March 22, 1991
Export Citation:
Assignee:
NIPPON DENKI KK
International Classes:
H04R1/44; H04R17/00; (IPC1-7): H04R1/44; H04R17/00
Domestic Patent References:
| JP63234949A | ||||
| JP6261500A | ||||
| JP5057454U | ||||
| JP5920234B2 |
Attorney, Agent or Firm:
Naoki Kyomoto (2 outside)