Title:
【発明の名称】音響レンズ
Document Type and Number:
Japanese Patent JPH0654437
Kind Code:
B2
Inventors:
Umeoka Hitoshi
Yuzo Okudaira
Yuzo Okudaira
Application Number:
JP13897786A
Publication Date:
July 20, 1994
Filing Date:
June 14, 1986
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
G10K11/30; (IPC1-7): G10K11/30
Domestic Patent References:
| JPS58216294A | ||||
| JPS577100B2 | ||||
| JPS6085043A | ||||
| JPS5282302A |
Attorney, Agent or Firm:
Ishida Choshichi
Next Patent: パタ−ン認識システム