公开(公告)号：US12085481B2

公开(公告)日：2024-09-10

申请号：US17764569

申请日：2020-08-31

Applicant: NOK CORPORATION

Inventor： Yuta Kasai ,  Shotaro Karube ,  Hikaru Tadano ,  Masashi Takekoshi ,  Takayuki Sakurai

IPC: G01M3/20 ,  H01M8/0271 ,  H01M8/04664

CPC classification number: G01M3/20 ,  H01M8/0271

Abstract: A seal inspection device includes: a first holder including a port surrounded by an inspection target, and a through hole connected to an outside-leak detection flow path; a second holder holding the inspection target between the first and second holders; an inspection-place sealing portion forming, into a closed space, a space where the inspection target is arranged, in cooperation with the first and second holders; a pressurization valve connecting the port to both a supply source of an inspection gas and an exhaust system; a detector for the inspection gas; a first measurement valve connecting the detector to the port; and a second measurement valve connecting the outside-leak detection flow path to the detector.