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:
Aug. 28, 2007
Filed:
Feb. 13, 2004
Youji Kawahara, Tokyo, JP;
Masataka Mochizuki, Tokyo, JP;
Koichi Mashiko, Tokyo, JP;
Fumitoshi Kiyooka, Kanagawa, JP;
Hiroaki Agata, Kanagawa, JP;
Youji Kawahara, Tokyo, JP;
Masataka Mochizuki, Tokyo, JP;
Koichi Mashiko, Tokyo, JP;
Fumitoshi Kiyooka, Kanagawa, JP;
Hiroaki Agata, Kanagawa, JP;
Fujikura, Ltd., Tokyo, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A heat pipe wherein a condensable liquid phase working fluid is encapsulated in a container sealed in air-tight condition; wherein the wick composed of the porous body for refluxing the liquid phase working fluid by a capillary pressure is provided in the container; wherein a part of the container functions as an evaporating part for evaporating the working fluid by means of inputting the heat from outside; and wherein another part of the container functions as a condensing part for condensing a vapor of the working fluid by means of radiating the heat to the outside; comprises a direct reflux flow passage for flowing the liquid phase working fluid to the evaporating part, which has a flow cross-sectional area greater than that of a cavity formed in the porous body.