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US 2021/0229111 A1Published application
Unit for electrostatic filter and electrostatic filter
AssigneeCanon Kabushiki Kaisha
InventorsIsao Imamura, Sachiko Yamauchi
Life of this patent
Estimating the term…
Abstract
A unit for electrostatic filter includes: a repeated structure of patterns that are respectively formed of one selected from at least two different substances having different work functions. The patterns formed of the different substances are put in contact with each other. The work functions differ by 1 eV or greater between the different substances put in contact with each other in the patterns.
Claims20
A unit for electrostatic filter, comprising:
- a repeated structure of patterns that are respectively formed of one selected from at least two different substances having different work functions, the patterns formed of the different substances being put in contact with each other, wherein
- the work functions differ by 1 eV or greater between the different substances put in contact with each other in the patterns.
An electrostatic filter, comprising:
- a unit for electrostatic filter that includes
- a repeated structure of patterns that are respectively formed of one selected from at least two different substances having different work functions, the patterns formed of the different substances being put in contact with each other, wherein
- the work functions differ by 1 eV or greater between the different substances put in contact with each other in the patterns.
Dependencies are inferred from the claim text.