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. 17, 1999
Filed:
Sep. 13, 1996
Tadashi Katsui, Kawasaki, JP;
Katsuhiko Nakata, Kawasaki, JP;
Takeshi Koga, Kawasaki, JP;
Tadanobu Matsumura, Kawasaki, JP;
Yoshimi Tanaka, Kawasaki, JP;
Yasuaki Sugimoto, Kawasaki, JP;
Takashi Kitahara, Matsudamachi, JP;
Takayuki Horinishi, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
PFU Limited, Ishikawa, JP;
Abstract
A heat sink mounted on a heat producing element for cooling the heat producing element attached on the printed board of the electronic apparatus, having a heat sink body made of a good heat conductive material and a fan assembly installed inside the heat sink body. The heat sink body is efficiently air-cooled by a cooling air generated by the rotation of the fan assembly. The cooling air forcibly cools a base and a fixing wall of the base adjacent to the heat producing element and plate-like radiating fins or a pin-like radiating fins are protruded on the heat sink body to radiate the heat effectively. The position of the fan assembly is at the center of the heat sink body or is at the offset position from the center of the heat sink body. The heat sink of the present invention can be installed in a portable electronic apparatus such as a portable computer.