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.

Date of Patent:
Oct. 20, 2026

Filed:

Feb. 28, 2023
Applicant:

Maxell, Ltd., Otokuni-gun, JP;

Inventors:

Toshiharu Goto, Otokuni-gun, JP;

Satoshi Yamamoto, Otokuni-gun, JP;

Kei Mizutani, Otokuni-gun, JP;

Assignee:

MAXELL, LTD., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 27/36 (2006.01); B32B 27/06 (2006.01);
U.S. Cl.
CPC ...
B32B 27/365 (2013.01); B32B 27/065 (2013.01); B32B 2250/03 (2013.01); B32B 2250/244 (2013.01); B32B 2250/40 (2013.01); B32B 2266/0264 (2013.01); B32B 2307/72 (2013.01); B32B 2307/7376 (2023.05); B32B 2439/02 (2013.01);
Abstract

A co-extruded sheet contains a polycarbonate resin, and includes a core layer formed from a foam resin, a skin layer formed from a non-foaming resin and laminated to one major surface of the core layer, and a second skin layer laminated to another major surface of the core layer. A melt volume-flow rate of the polycarbonate resin contained in the core layer (MVRc) and a melt volume-flow rate of the polycarbonate resin contained in one of the skin layers (MVRs) satisfy the following expression, (1):


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Goto, Toshiharu. (2026). Co-extruded sheet and resin-molded product (U.S. Patent No. 12766819). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12766819

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

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