Title:
AQUACULTURE DEVICE, AQUACULTURE SYSTEM AND AQUACULTURE METHOD
Document Type and Number:
WIPO Patent Application WO/2018/088332
Kind Code:
A1
Abstract:
Provided are: an aquaculture device having a simple structure which uniformly irradiates ultrasonic waves, among acoustic waves, within a water tank so that the resistance of aquatic animals being cultured can be improved and the survival rate thereof can be elevated, thereby increasing the yield; an aquaculture system; and an aquaculture method. An aquatic animal 29 being cultured is irradiated with acoustic waves comprising sonic waves and/or ultrasonic waves. The aquaculture device comprises: an ultrasonic oscillator 20 capable of generating acoustic waves; a driving section 15 driving the ultrasonic oscillator 20; and an outer case 12 holding the ultrasonic oscillator 20 and the driving section 15. On the side of the front face toward which high-strength acoustic waves 19 are radiated from the ultrasonic oscillator 20, an acoustic wave-scattering layer 24, which is formed of an acoustic wave-scattering material and capable of scattering the high-strength acoustic waves 19 while converting the high-strength acoustic waves 19 into low-strength acoustic waves 21 having a lower strength per unit area and then irradiating the same, is provided.
Inventors:
KARAKI TOMOAKI (JP)
YAMASHITA YOHACHI (JP)
YAMASHITA YOHACHI (JP)
Application Number:
PCT/JP2017/039781
Publication Date:
May 17, 2018
Filing Date:
November 02, 2017
Export Citation:
Assignee:
PUBLIC UNIV CORPORATION TOYAMA PREFECTURAL UNIV (JP)
International Classes:
A01K63/00; A01K61/00; A01K63/04
Domestic Patent References:
| WO2015159757A1 | 2015-10-22 |
Foreign References:
| JPH1156193A | 1999-03-02 | |||
| JPH06113694A | 1994-04-26 | |||
| JP2002000119A | 2002-01-08 |
Attorney, Agent or Firm:
HIROSAWA Isao (JP)
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