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:
Feb. 19, 2019
Filed:
Sep. 09, 2011
Applicants:
Hideaki Fujii, Tokyo, JP;
Yoshiyuki Tadokoro, Tokyo, JP;
Satoru Tezuka, Tokyo, JP;
Kiyoshi Miyaji, Tokyo, JP;
Tatsuya Ogawa, Tokyo, JP;
Saori Tanaka, Tokyo, JP;
Inventors:
Hideaki Fujii, Tokyo, JP;
Yoshiyuki Tadokoro, Tokyo, JP;
Satoru Tezuka, Tokyo, JP;
Kiyoshi Miyaji, Tokyo, JP;
Tatsuya Ogawa, Tokyo, JP;
Saori Tanaka, Tokyo, JP;
Assignee:
ASAHI KASEI FIBERS CORPORATION, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01); B01D 35/00 (2006.01); B01D 29/11 (2006.01); F02M 37/22 (2006.01); D04H 1/498 (2012.01); D04H 3/11 (2012.01); D04H 3/16 (2006.01); D04H 5/03 (2012.01); B32B 5/02 (2006.01); B32B 5/26 (2006.01);
U.S. Cl.
CPC ...
B01D 39/1623 (2013.01); B01D 29/11 (2013.01); B01D 29/111 (2013.01); B01D 35/005 (2013.01); B32B 5/022 (2013.01); B32B 5/26 (2013.01); D04H 1/498 (2013.01); D04H 3/11 (2013.01); D04H 3/16 (2013.01); D04H 5/03 (2013.01); F02M 37/22 (2013.01); B01D 2239/065 (2013.01); B01D 2239/0627 (2013.01); B01D 2239/1233 (2013.01); B32B 2250/20 (2013.01); B32B 2262/0284 (2013.01); B32B 2307/718 (2013.01); B32B 2307/724 (2013.01); B32B 2307/728 (2013.01); F02M 2037/228 (2013.01); Y10T 156/10 (2015.01);
Abstract
Provided is a filter material which can enhance the particle holding capacity of a filter while keeping the particle capture efficiency thereof and which thus ensures a prolonged filter life. The present invention pertains to a filter material comprising a spun lace nonwoven fabric which contains a thermoplastic synthetic filament nonwoven fabric as the intermediate layer.