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Patent Searching and Data


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 (201-206, 421 Pangyo-ro,Bundang-gu, Seongnam-si, Gyeonggi-do, 13522, KR)
OH, Hyun Joo (Hankook APT. 202-114, 2 Tagok-ro 86beon-gil,Seo-gu, Incheon, 22711, KR)
Application Number:
KR2019/005150
Publication Date:
November 14, 2019
Filing Date:
April 29, 2019
Export Citation:
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Assignee:
VAIVTEC CO., LTD. (4F38, Wangsimni-roSeongdong-gu, Seoul, 04773, KR)
JEONG, Chan Du (201-206, 421 Pangyo-ro,Bundang-gu, Seongnam-si, Gyeonggi-do, 13522, KR)
OH, Hyun Joo (Hankook APT. 202-114, 2 Tagok-ro 86beon-gil,Seo-gu, Incheon, 22711, KR)
International Classes:
A23B4/015; H02M5/16; H03K5/1252; H03K7/08
Foreign References:
KR101728803B12017-05-02
KR101053261B12011-10-31
JPH08275928A1996-10-22
JPH10304860A1998-11-17
JPH06189674A1994-07-12
KR101930080B12018-12-17
Attorney, Agent or Firm:
S.Y.CHA PATENT OFFICE (6F100, Nambusunhwan-ro 356-gilSeocho-gu, Seoul, 06744, KR)
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