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:
May. 06, 2025
Filed:
Dec. 24, 2019
Kuraray Co., Ltd., Kurashiki, JP;
Hiroe Yoshinobu, Okayama, JP;
Tetsuya Hanamoto, Okayama, JP;
KURARAY CO., LTD., Kurashiki, JP;
Abstract
One aspect of the present invention relates to a water purification filter including: a first support member; an activated carbon layer containing activated carbon and a fibrous binder; and a second support member. A 10% particle diameter (D10) of the activated carbon in a cumulative size distribution at volume standard is 19 to 90 μm, a 50% particle diameter (D50) of the activated carbon in the cumulative size distribution at volume standard is 120 to 180 μm, and a 90% particle diameter (D90) of the activated carbon in the cumulative size distribution at volume standard is 180 to 250 μm. The first support member has an airflow resistance of 0.5 to 10 mm HO. The second support member has an airflow resistance of 0.5 to 7 mm HO. The activated carbon layer has a thickness of 3 to 10 mm.