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:
Aug. 08, 2023
Yamaha Fine Technologies Co., Ltd., Hamamatsu, JP;
Toru Ishii, Hamamatsu, JP;
Minoru Yamamoto, Fukuroi, JP;
Daisuke Homma, Hamamatsu, JP;
Kosei Fujita, Hamamatsu, JP;
YAMAHA FINE TECHNOLOGIES CO., LTD., Hamamatsu, JP;
Abstract
An object of the present disclosure is to provide a chamber with which inspection conditions of a leak test performed on workpieces of different sizes can easily be managed. The chamber according to an aspect of the present disclosure is a chamber used in a leak tester, and includes: a main chamber for housing a workpiece; a sub-chamber that communicates with the main chamber; and a volume changing mechanism for changing the volume of the sub-chamber, wherein the volume changing mechanism changes the volume of the sub-chamber such that a total volume of a space on the outside of the workpiece in the main chamber and the sub-chamber remains constant with respect to workpieces of different sizes.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile