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:
Sep. 08, 2026
Filed:
Nov. 28, 2023
Applicant:
Ngk Insulators, Ltd., Nagoya-City, JP;
Inventors:
Assignee:
NGK INSULATORS, LTD., Nagoya-City, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10P 72/00 (2026.01); B28B 1/14 (2006.01); B28B 7/18 (2006.01); H01J 37/32 (2006.01); H10P 72/72 (2026.01);
U.S. Cl.
CPC ...
H10P 72/0432 (2026.01); B28B 1/14 (2013.01); B28B 7/18 (2013.01); H01J 37/32449 (2013.01); H01J 37/32715 (2013.01); H10P 72/722 (2026.01);
Abstract
A plug includes a plug body, a spiral gas flow path that is provided in the plug body and that extends from a lower surface of the plug body to an upper surface, and at least one branch path that branches from a position on the spiral gas flow path and that opens on an outer circumferential surface of the plug body or that is in communication with another spiral gas flow path that differs from the spiral gas flow path and that extends from a lower surface of the plug body to an upper surface.