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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 10723850 B1

PDFFull Text
Date of Patent:
Jul. 28, 2020

Filed:

Sep. 24, 2015

Polymer film, waterproof sound-permeable membrane, waterproof sound-permeable member, electronic device, electronic device case, waterproof sound transmission structure, waterproof gas-permeable membrane, waterproof gas-permeable member, waterproof ventilation structure, suction sheet, method for holding workpiece by suction on suction unit, method for producing ceramic capacitor, optical film, optical member, and composition

Applicant:

Nitto Denko Corporation, Osaka, JP;

Inventors:

Satoru Furuyama, Osaka, JP;

Masaaki Mori, Osaka, JP;

Yozo Nagai, Osaka, JP;

Yuuzou Muraki, Osaka, JP;

Toshimitsu Tachibana, Osaka, JP;

Hajime Yamamoto, Osaka, JP;

Assignee:

NITTO DENKO CORPORATION, Osaka, JP;

Attorney:

Greenblum & Bernstein, P.L.C.

Primary Examiner:

Brian Handville

Int. Cl.
CPC ...
C08K 5/18 (2006.01); C08J 5/18 (2006.01); B01D 71/48 (2006.01); H05K 5/06 (2006.01); C08J 9/00 (2006.01); B25J 15/06 (2006.01); C04B 33/32 (2006.01); C08J 7/04 (2020.01); C08J 7/12 (2006.01); G10K 13/00 (2006.01); H01G 4/12 (2006.01); H05K 5/02 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); B01D 71/48 (2013.01); B25J 15/0691 (2013.01); C04B 33/32 (2013.01); C08J 7/04 (2013.01); C08J 7/12 (2013.01); C08J 7/123 (2013.01); C08J 9/00 (2013.01); G10K 13/00 (2013.01); H01G 4/12 (2013.01); H05K 5/0217 (2013.01); H05K 5/06 (2013.01); B01D 2325/022 (2013.01); B01D 2325/38 (2013.01); C04B 2235/66 (2013.01); C08J 2367/02 (2013.01);
Abstract

The polymer film of the present invention has through holes extending from one principal surface of the polymer film to the other principal surface of the polymer film. The through holes are straight holes having a central axis extending straight, and have a shape in which the area of a cross-section perpendicular to the direction of the central axis increases from the one principal surface of the polymer film toward the other principal surface. This polymer film has passages in its thickness direction, has an unconventional structure, and can be used in various applications, such as in a waterproof sound-permeable membrane, in a waterproof gas-permeable membrane, and in a suction sheet. The ratio a/b of the opening diameter a of the through holes at the one principal surface to the opening diameter b of the through holes at the other principal surface is 80% or is less than 80%.

Find Patent Forward Citations

Furuyama, Satoru. (2020). Polymer film, waterproof sound-permeable membrane, waterproof sound-permeable member, electronic device, electronic device case, waterproof sound transmission structure, waterproof gas-permeable membrane, waterproof gas-permeable member, waterproof ventilation structure, suction sheet, method for holding workpiece by suction on suction unit, method for producing ceramic capacitor, optical film, optical member, and composition (U.S. Patent No. 10723850). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/10723850

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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