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:
Dec. 03, 2024
Filed:
Oct. 23, 2018
Applicants:
Jnc Corporation, Tokyo, JP;
Jnc Fibers Corporation, Tokyo, JP;
Inventor:
You Umebayashi, Shiga, JP;
Assignees:
JNC CORPORATION, Tokyo, JP;
JNC FIBERS CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 39/16 (2006.01); D04H 1/4382 (2012.01); D04H 1/728 (2012.01);
U.S. Cl.
CPC ...
B01D 39/1623 (2013.01); D04H 1/43835 (2020.05); D04H 1/43838 (2020.05); D04H 1/728 (2013.01); B01D 2239/025 (2013.01); B01D 2239/0618 (2013.01); B01D 2239/0631 (2013.01); B01D 2239/0636 (2013.01); B01D 2239/064 (2013.01); B01D 2239/065 (2013.01); B01D 2239/10 (2013.01); B01D 2239/1233 (2013.01); B01D 2239/1291 (2013.01); D10B 2505/04 (2013.01);
Abstract
A filtration medium for a filter, having high dust collection efficiency, low pressure loss, a long service life and sufficient processing strength into a filter. A combined fiber nonwoven fabric includes first fibers having a mean fiber diameter of less than 200 nanometers, and second fibers having a mean fiber diameter in the range of 200 to 5000 nanometers, in which basis weight of the combined fiber nonwoven fabric is in the range of 2.1 to 15.0 g/m.