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:
Feb. 10, 2026
Filed:
Nov. 26, 2021
Furukawa Electric Co., Ltd., Tokyo, JP;
Kengo Tanaka, Tokyo, JP;
FURUKAWA ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A vapor chamber which enables to raise the heat transfer coefficient by improving the transport efficiency of the working fluid, and a manufacturing method thereof. A vapor chamber includes a working fluid in a sealed internal space formed by joining a first metal sheet and a second metal sheet, in which in an opposite surface of at least one metal sheet (at least opposite surfacein FIGS.A andB) among opposite surfacesat which the first metal sheet and the second metal sheet are facing each other, main grooves extending continuously or discontinuously towards one direction (extending direction X of main groove) are formed in line at a predetermined interval, and connection grooves connecting main grooveswhich are adjacent are formed at irregular arrangement pitches and irregular grooves widths toward a different direction than the one direction (extending direction X of main groove).