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:
Jan. 02, 2024
Filed:
Sep. 09, 2020
Dai Nippon Printing Co., Ltd., Tokyo-to, JP;
Kazunori Oda, Tokyo-to, JP;
Toshihiko Takeda, Tokyo-to, JP;
Shinichiro Takahashi, Tokyo-to, JP;
Takayuki Ota, Tokyo-to, JP;
DAI NIPPON PRINTING CO., LTD., Tokyo, JP;
Abstract
A wick sheet for a vapor chamber is sandwiched between a first sheet and a second sheet of the vapor chamber that encloses a working fluid. The wick sheet for a vapor chamber includes a sheet body having a first body surface and a second body surface, a penetration space that penetrates the sheet body, a first groove assembly that is disposed on the second body surface and that communicates with the penetration space, and the second groove assembly that is disposed on the first body surface and that communicates with the penetration space. The flow channel cross-sectional area of a second mainstream groove of the second groove assembly is greater than the flow channel cross-sectional area of a first mainstream groove of the first groove assembly.