公开(公告)号：US20240066440A1

公开(公告)日：2024-02-29

申请号：US18365379

申请日：2023-08-04

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tomoka YAMAMOTO ,  Takashi KONDO

IPC: B01D29/05 ,  B01D39/10

CPC classification number: B01D29/05 ,  B01D39/10 ,  B01D2239/1291

Abstract: A filter device that includes: a film section having multiple through-holes and a frame section surrounding a periphery of the film section; and a holding unit in a round or angular tubular shape, the holding unit having a groove on an inner wall of the holding unit that is constructed to hold the frame section of the filter. a size of the groove in an extending direction of the holding unit is larger than a thickness of the filter. A diameter of a first inscribed circle which contacts a surface of a recessed portion of the groove is larger than a second diameter of an inscribed circle which contacts an outer periphery of the filter.