Patent ID: 7638103
Filing Date: 2009-12-29
Classification: F01N,H01J,H05H,Y02C

Abstract:
1. A plasma generating electrode comprising at least a pair of electrodes disposed opposite to each other and capable of generating plasma upon application of voltage between the electrodes, at least one of the pair of electrodes including a plate-shaped ceramic body as a dielectric and a plurality of conductive films disposed inside the ceramic body without overlapping with one another and each conductive film of the plurality of conductive films having a plurality of through-holes formed through the conductive film in its thickness direction in a predetermined arrangement pattern, the through-holes having a cross-sectional shape including an arc shape along a plane perpendicular to the thickness direction, the arrangement pattern of the through-holes formed in at least one of the conductive films being different from the arrangement pattern of the through-holes formed in another of the conductive films, the plasma generating electrode being capable of simultaneously generating different states of plasma upon application of voltage between the pair of electrodes due to the different arrangement patterns of the through-holes in the conductive films of the at least one of the pair of electrodes.