Title:
STERILIZER AND STERILIZATION METHOD USING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/102532
Kind Code:
A1
Abstract:
It is intended to provide a sterilizer, which aimis at efficiently sterilizing
a subject such as a container by using active oxygen generated with the use of plasma,
and a sterilization method using the same. In particular, it is intended to develop
a technique for stably generating active oxygen with the use of plasma and thus
provide a sterilizer , which enables, if necessary, stable plasma formation
and active oxygen generation in the atmosphere and can inhibit thermal damages
caused by the plasma on a subject to be sterilized, and a sterilization method
using the same. A sterilizer wherein a gas (100), which contains at least one of
active oxygen generated by converting oxygen gas into plasma and active oxygen
generated by converting a gas other than oxygen into plasma and contacting the
plasma with oxygen gas, is brought into contact with a subject (101) to thereby
kill microorganism sticking to the subject, characterized in that a non-conductive
gas channel tube (1) for introducing the gas to be converted into plasma and discharging
into the atmosphere and a conductive antenna tube (2) located around the gas channel
tube are provided, the antenna tube has a slit (3) in a definite length formed along
the tube axis direction of the gas channel tube, and the antenna tube is irradiated
with microwave to thereby convert the gas in the gas channel tube into plasma.
In a preferable mode, the above sterilizer is characterized in that the slit has
a length corresponding to an integral multiple of the half-wave length of the
microwave to be used in the irradiation.
Inventors:
YONESU AKIRA (JP)
HAYASHI NOBUYA (JP)
TACHIBANA YOSHIHISA (JP)
HAYASHI NOBUYA (JP)
TACHIBANA YOSHIHISA (JP)
Application Number:
PCT/JP2007/054403
Publication Date:
September 13, 2007
Filing Date:
March 07, 2007
Export Citation:
Assignee:
UNIV RYUKYUS (JP)
UNIV SAGA (JP)
COCA COLA CO (US)
YONESU AKIRA (JP)
HAYASHI NOBUYA (JP)
TACHIBANA YOSHIHISA (JP)
UNIV SAGA (JP)
COCA COLA CO (US)
YONESU AKIRA (JP)
HAYASHI NOBUYA (JP)
TACHIBANA YOSHIHISA (JP)
International Classes:
A61L2/14; B65B55/04; B65B55/10; H05H1/24
Foreign References:
JPH06263120A | 1994-09-20 | |||
JPH11278444A | 1999-10-12 | |||
JP2001044175A | 2001-02-16 | |||
JP2001200369A | 2001-07-24 | |||
JP2002515639A | 2002-05-28 | |||
JP2006296848A | 2006-11-02 | |||
JP2005279042A | 2005-10-13 | |||
JP2006020950A | 2006-01-26 |
Other References:
See also references of EP 2008670A4
Attorney, Agent or Firm:
TAMURA, Chikashi (4-10 Akasaka 1-chome,, Minato-k, Tokyo52, JP)
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