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:
Apr. 18, 2000
Filed:
Jul. 29, 1997
Applicant:
Inventors:
Kazunari Suga, Gyoda, JP;
Akihiro Fujimoto, Gunma, JP;
Assignee:
Advantest Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361699 ; 361689 ; 361698 ; 361704 ; 361719 ; 361720 ; 174 151 ; 165 804 ;
Abstract
A cooler-equipped printed circuit board, in which electronic devices arranged in a matrix form on the printed circuit board are covered with a sealed case held in liquidtight contact with the board and having a coolant channel from an inlet port and an outlet port made in the case. Barriers are provided in the coolant channel to change the direction of flow of the coolant to stir it and make its temperature uniform throughout it.