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:
Apr. 21, 2009
Filed:
Oct. 16, 2002
Nobuyuki Sakadume, Nagaoka, JP;
Toshihiko Soyama, Nagaoka, JP;
Eiko Meguro, Nagaoka, JP;
Kazuro Isomae, Tokyo, JP;
Mikiko Gokano, Tokyo, JP;
Nobuyuki Sakadume, Nagaoka, JP;
Toshihiko Soyama, Nagaoka, JP;
Eiko Meguro, Nagaoka, JP;
Kazuro Isomae, Tokyo, JP;
Mikiko Gokano, Tokyo, JP;
Hokuetsu Paper Mills, Ltd., Nagaoka-shi, JP;
Nikki-Universal Co., Ltd., Tokyo, JP;
Abstract
It is intended to provide an air purification filter which has a high dry tensile strength, a high wet tensile strength in association with a high water resistance and a high water repellency and exhibits a bactericidal effect due to a gas phase reaction in a gas phase. Namely, an air purification filter having a high dry tensile strength, a high wet tensile strength (a high water resistance) and a high water repellency as well as a bactericidal effect which is obtained by blending a filter fiber having a functional group with a mixture of a modification enzyme which has an ionic polarity opposite to the ionic polarity of the whole filter fiber as described above and a bactericidal effect with an ionic synthetic resin binder having the opposite ionic polarity similar to the modification enzyme.