Title:
APPARATUS AND METHOD FOR PRESERVING FRESHNESS BY DISCHARGING LOW FREQUENCY WAVE
Document Type and Number:
WIPO Patent Application WO/2019/216587
Kind Code:
A1
Abstract:
The present invention relates to a freshness preserving apparatus which discharges a low frequency wave in order to generate a low frequency electric field, the apparatus comprising a high voltage low frequency circuit (500) which comprises: a composite wave generation unit for generating a composite wave of a high frequency wave and a low frequency wave; a high frequency transformer for amplifying the composite wave; and a low frequency filter for removing the high frequency wave from the composite wave.
Inventors:
JEONG CHAN DU (KR)
OH HYUN JOO (KR)
OH HYUN JOO (KR)
Application Number:
PCT/KR2019/005150
Publication Date:
November 14, 2019
Filing Date:
April 29, 2019
Export Citation:
Assignee:
VAIVTEC CO LTD (KR)
JEONG CHAN DU (KR)
OH HYUN JOO (KR)
JEONG CHAN DU (KR)
OH HYUN JOO (KR)
International Classes:
A23B4/015; H02M5/16; H03K5/1252; H03K7/08
Foreign References:
| KR101728803B1 | 2017-05-02 | |||
| KR101053261B1 | 2011-10-31 | |||
| JPH08275928A | 1996-10-22 | |||
| JPH10304860A | 1998-11-17 | |||
| JPH06189674A | 1994-07-12 | |||
| KR101930080B1 | 2018-12-17 |
Attorney, Agent or Firm:
S.Y.CHA PATENT OFFICE (KR)
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