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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.:

US 10548427 B1

PDFFull Text
Date of Patent:
Feb. 04, 2020

Filed:

Mar. 09, 2016

Sheet for extraction, extraction filter, and extraction bag

Applicant:

Ohki Co., Ltd., Osaka-shi, Osaka, JP;

Inventors:

Naoko Yamaguchi, Osaka, JP;

Yoko Mitani, Osaka, JP;

Ryosuke Hayami, Osaka, JP;

Assignee:

OHKI CO., LTD., Osaka-shi, JP;

Attorney:

Oliff PLC

Primary Examiner:

Jeremy R Pierce

Int. Cl.
CPC ...
A47J 31/06 (2006.01); B32B 5/26 (2006.01); D04H 3/14 (2012.01); D04H 3/16 (2006.01); B65D 85/808 (2006.01); B32B 7/12 (2006.01); B32B 5/02 (2006.01); B32B 7/04 (2019.01); B01D 11/02 (2006.01); D04H 3/011 (2012.01); D04H 1/55 (2012.01); D04H 1/435 (2012.01); B65D 77/00 (2006.01);
U.S. Cl.
CPC ...
A47J 31/06 (2013.01); B01D 11/02 (2013.01); B32B 5/022 (2013.01); B32B 5/26 (2013.01); B32B 7/04 (2013.01); B32B 7/12 (2013.01); B65D 77/00 (2013.01); B65D 85/808 (2013.01); D04H 1/435 (2013.01); D04H 1/55 (2013.01); D04H 3/011 (2013.01); D04H 3/14 (2013.01); D04H 3/16 (2013.01); B32B 2250/03 (2013.01); B32B 2250/20 (2013.01); B32B 2250/26 (2013.01); B32B 2260/028 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0276 (2013.01); B32B 2307/406 (2013.01); B32B 2307/50 (2013.01); B32B 2307/54 (2013.01); B32B 2419/04 (2013.01); B32B 2439/06 (2013.01); B32B 2451/00 (2013.01); Y02W 90/12 (2015.05);
Abstract

An extraction sheet having high machinability in the manufacture of an extraction filter for beverages and an extraction filter using the same and having high handling property is provided. The extraction sheet includes a layer including a meltblown nonwoven fabric that is formed from fibers of a polylactic acid-based resin having a crystallinity of 9.0% or lower and a fiber diameter of 15.0 μm or smaller and that has a basis weight of 2.0 to 30.0 g/m2, and a layer including a spunbonded nonwoven fabric that is formed from fibers of a polylactic acid-based resin having a crystallinity of 30.0 to 60.0% and a fiber diameter of 35.0 μm or smaller and that has a basis weight of 5.0 to 30.0 g/m2. The extraction sheet has a bending hysteresis of 5.0×10to 14.5×10gf·cm/cm.

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Yamaguchi, Naoko. (2020). Sheet for extraction, extraction filter, and extraction bag (U.S. Patent No. 10548427). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10548427

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