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. 04, 2011

Filed:

May. 25, 2010
Applicants:

Kentaro Tomioka, Sayama, JP;

Takeshi Hongo, Sagamihara, JP;

Inventors:

Kentaro Tomioka, Sayama, JP;

Takeshi Hongo, Sagamihara, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); F28D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

According to one embodiment, the electronic device includes a housing, the first to third printed circuit boards, and a fan unit. The first printed circuit board includes the first heat-generating part secured to the first wiring board. The second printed circuit board includes the second and third heat-generating parts, has an amount of heat generation larger than that of the first printed circuit board, and is located between the first printed circuit board and the second wall. The third printed circuit board includes the fourth heat-generating part, has an amount of heat generation smaller than that of the first printed circuit board, and is located between the first printed circuit board and the first wall.


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