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:
Jun. 05, 2007
Filed:
Jan. 29, 2002
Kazuhiro Iino, Kawasaki, JP;
Naoya Yamazaki, Kawasaki, JP;
Takashi Shirakami, Kawasaki, JP;
Yoshiaki Tada, Kawasaki, JP;
Kazuhiro Iino, Kawasaki, JP;
Naoya Yamazaki, Kawasaki, JP;
Takashi Shirakami, Kawasaki, JP;
Yoshiaki Tada, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
The present invention relates to a fan unit used for forced air cooling, a motherboard with predetermined wiring formed as a wiring pattern, disposed on the rear face of an equipment, and an electronic equipment provided with the fan unit and the motherboard. It is an object of the present invention to reliably maintain appropriate forced air cooling at low cost. For this purpose, the fan unit of the present invention measures temperatures of predetermined places in parallel, processes each of combinations of these temperatures, outputs the processing result via lines whose number is equal to the number of the combinations, and maintains the revolving speed of fans at a value suitable for the processing result obtained via these lines.