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:
Mar. 05, 2013

Filed:

Aug. 06, 2009
Applicants:

Mitsuo Hashimoto, Kanagawa, JP;

Kazuaki Yazawa, Tokyo, JP;

Yuichi Ishida, Kanagawa, JP;

Hiroyuki Ryoson, Kanagawa, JP;

Inventors:

Mitsuo Hashimoto, Kanagawa, JP;

Kazuaki Yazawa, Tokyo, JP;

Yuichi Ishida, Kanagawa, JP;

Hiroyuki Ryoson, Kanagawa, JP;

Assignee:

Sony Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); F28D 15/02 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to an embodiment, there is provided a heat spreader including an evaporation portion, a first condenser portion, a working fluid, and a first flow path. The evaporation portion is arranged in a first position. The first condenser portion is arranged in a second position, the second position being arranged apart from and higher than the first position. The working fluid evaporates from a liquid phase to a gas phase in the evaporation portion, and condenses from the gas phase to the liquid phase in the first condenser portion. The first flow path is made of a nanomaterial, has hydrophobicity on a surface, and causes the working fluid condensed to the liquid phase in the first condenser portion to flow to the evaporation portion by a gravitational force.


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