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:
Jan. 26, 2016
Filed:
Aug. 30, 2012
LI Bao, Yuki, JP;
Makoto Kobayashi, Yuki, JP;
Jun Morita, Yuki, JP;
Tatsumi Sakano, Yuki, JP;
Osamu Kitayama, Yuki, JP;
Satoshi Hara, Yuki, JP;
Hitoshi Niinuma, Yuki, JP;
Li Bao, Yuki, JP;
Makoto Kobayashi, Yuki, JP;
Jun Morita, Yuki, JP;
Tatsumi Sakano, Yuki, JP;
Osamu Kitayama, Yuki, JP;
Satoshi Hara, Yuki, JP;
Hitoshi Niinuma, Yuki, JP;
Daikin Industries, Ltd., Osaka, JP;
Abstract
A filter medium for an air filter collecting dust in an air flow has a principal collection layer including a porous polytetrafluoroethylene film. A surface of the filter medium is provided with a plurality of embossed projections. Preferably, a processed filter medium maintains a zigzag shape by pleating an unprocessed filter medium to create mountain folds and valley folds. Preferably, an air filter unit includes such a processed filter medium and a frame body holding the processed filter medium.