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:
May. 13, 2014
Filed:
Jun. 30, 2010
Kazuhiko Kubo, Hokkaido, JP;
Yuichi Sato, Hokkaido, JP;
Norihiro Kawamura, Hokkaido, JP;
Masashi Funaba, Hokkaido, JP;
Kazuhiko Kubo, Hokkaido, JP;
Yuichi Sato, Hokkaido, JP;
Norihiro Kawamura, Hokkaido, JP;
Masashi Funaba, Hokkaido, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A graphite sheet preventing leakage of a heat radiating member when a fluid heat radiating member such as grease is used and improving heat radiation performance is provided. A graphite sheet includes a first main surface and a second main surface opposite to the first main surface and has a large anisotropic thermal conductivity in a main surface direction. The graphite sheet includes a first concave portion provided on the first main surface and having a first bottom surface, a second concave portion provided on the second main surface and having a second bottom surface, a thin film portion formed in a region in which the first bottom surface and the second bottom surface are overlapped with each other, and a connecting hole penetrating the thin film portion and allowing the first concave portion and the second concave portion to communicate with each other.