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:
Oct. 14, 2025
Filed:
Jul. 20, 2020
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Shusuke Yokota, Nagaokakyo, JP;
Masaru Banju, Nagaokakyo, JP;
Toshikazu Kawaguchi, Nagaokakyo, JP;
Takashi Kondo, Nagaokakyo, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
A filtration filter that includes a filter section having a plurality of through-holes passing through a first main surface and constructed such that objects to be filtered contained in a liquid are captured and a second main surface opposite the first main surface; and a frame section surrounding an outer periphery of the filter section, wherein a first film thickness at a center of the filter section is larger than a second film thickness of the filter section at a position closer to the frame section than the center of the filter section.