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:
Jul. 17, 2001
Filed:
May. 28, 1999
Applicant:
Inventors:
Osamu Tanaka, Settsu, JP;
Toshio Kusumi, Settsu, JP;
Yoshiyuki Shibuya, Settsu, JP;
Takeshi Tano, Settsu, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 3/916 ; B01D 6/908 ; B01D 7/136 ; C08J 9/00 ;
U.S. Cl.
CPC ...
B01D 3/916 ; B01D 6/908 ; B01D 7/136 ; C08J 9/00 ;
Abstract
A filter medium which has an average pore diameter of more than 0.5 &mgr;m, a pressure loss of 2-50 mmH,O determined when air is permeated therethrough at a velocity of flow of 5.3 cm/sec, and a PF value of 18-12, which is calculated in accordance with the following equation on the basis of this pressure loss and a collection efficiency using DOP of a grain size of 0.10-0.12 &mgr;m.
Tanaka, Osamu. (2001). Filter medium and air filter unit using the same (U.S. Patent No. 6261979). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6261979
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile