US 12,274,816 B2
Air purification system and protective clothing
Kenjiro Kimura, Hyogo (JP); and Noriaki Kimura, Hyogo (JP)
Assigned to INTEGRAL GEOMETRY SCIENCE INC., Hyogo (JP)
Appl. No. 17/924,548
Filed by Integral Geometry Science Inc., Hyogo (JP)
PCT Filed May 24, 2021, PCT No. PCT/JP2021/019586
§ 371(c)(1), (2) Date Nov. 10, 2022,
PCT Pub. No. WO2021/241488, PCT Pub. Date Dec. 2, 2021.
Claims priority of application No. 2020-091606 (JP), filed on May 26, 2020.
Prior Publication US 2023/0285625 A1, Sep. 14, 2023
Int. Cl. A61L 9/16 (2006.01); A61L 9/22 (2006.01); H05H 1/24 (2006.01)
CPC A61L 9/16 (2013.01) [A61L 2209/111 (2013.01); A61L 2209/14 (2013.01); A61L 2209/212 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An air purification system that generates plasma using voltage, the air purification system comprising:
a first electrode that generates electromagnetic resonance when power is supplied;
a second electrode disposed surrounding the first electrode in a state of being separated from the first electrode;
a power feeder that supplies power to the first electrode;
an electric field probe that measures an intensity of an electric field between the first electrode and the second electrode; and
a controller that controls the power supplied to the first electrode,
wherein the controller performs control by adjusting a frequency of the power supplied to the first electrode and a position at which the power is supplied to the first electrode, to cause a half wavelength during electromagnetic resonance of the first electrode to be a sum of a length of the first electrode and a length of plasma generated, and maximize an output value of a signal indicating the intensity of the electric field measured by the electric field probe.