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:
Mar. 17, 2015
Filed:
Feb. 02, 2009
Applicants:
Kenji Ohsawa, Kagoshima, JP;
Katsuya Tsuruta, Kagoshima, JP;
Toshiaki Kotani, Kagoshima, JP;
Kei Mizuta, Kagoshima, JP;
Inventors:
Kenji Ohsawa, Kagoshima, JP;
Katsuya Tsuruta, Kagoshima, JP;
Toshiaki Kotani, Kagoshima, JP;
Kei Mizuta, Kagoshima, JP;
Assignees:
Fuchigami Micro Co., Ltd., Kiire, JP;
Kagoshima University, Kagoshima, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K 7/20 (2006.01); H01L 23/373 (2006.01); H01L 23/367 (2006.01); H01L 23/34 (2006.01); F28F 7/00 (2006.01); H01L 23/427 (2006.01);
U.S. Cl.
CPC ...
H01L 23/3736 (2013.01); H01L 23/3677 (2013.01); H05K 7/20481 (2013.01); H05K 7/20518 (2013.01); H05K 7/20409 (2013.01); H01L 23/427 (2013.01); H05K 7/20336 (2013.01);
Abstract
A heatsink is provided with a base body opposed to a heat generating body and absorbing heat from the heat generating body. Thermal resistance of that opposed portion of the base body which is opposed to the heat generating body is higher than thermal resistance of a surrounding portion surrounding the opposed portion.