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. 08, 2002
Filed:
May. 27, 1999
Applicant:
Inventors:
Osamu Inoue, Osaka, JP;
Shinichi Chaen, Osaka, JP;
Nobuki Uraoka, Osaka, JP;
Toshio Kusumi, Osaka, JP;
Jun Asano, Osaka, JP;
Seiichi Hirano, Osaka, JP;
Satoshi Hara, Osaka, JP;
Assignee:
Daikin Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01D 4/600 ;
U.S. Cl.
CPC ...
B01D 4/600 ;
Abstract
A filter medium with excellent flame-resistant properties and an air filter unit using the same are provided which have a flame-resistant air permeable supporting material on at least one surface of a polytetrafluoroethylene (PTFE) porous film and which can be used as a ceiling device, etc.