The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 23, 2016
Filed:
May. 26, 2015
Applicant:
Sumitomo Heavy Industries Ion Technology Co., Ltd., Tokyo, JP;
Inventor:
Masateru Sato, Ehime, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/08 (2006.01); H01J 37/06 (2006.01);
U.S. Cl.
CPC ...
H01J 37/06 (2013.01); H01J 37/08 (2013.01);
Abstract
An ion generator includes an arc chamber, a cathode that extends outward from the inside of the arc chamber in an axial direction and that emits a thermal electron into the arc chamber, a thermal reflector with a cylindrical shape provided around the cathode in a radial direction and extending in the axial direction, and a narrow structure configured to narrow a width in the radial direction of a gap between the cathode and the thermal reflector at a given position in the axial direction.