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.

Date of Patent:
May. 09, 2000

Filed:

Jun. 28, 1999
Applicant:
Inventors:

Hideyuki Osakada, Fujisawa, JP;

Yukihiro Seki, Yokohama, JP;

Tsunehiro Tobita, Yokohama, JP;

Junichi Taguri, Hadano, JP;

Hiroshi Mochizuki, Isehara, JP;

Assignee:

Hitachi, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
361703 ; 361724 ; 361785 ; 361704 ; 165122 ; 340625 ; 330100 ;
Abstract

An information processing apparatus includes a plurality of processor boards arranged parallelly on the main board and the DC--DC converters for generating operation voltages for processor devices each disposed between the adjacent processor boards. Further, a metal plate with high thermal conductivity is placed in close contact with an area of each of the processor boards where devices generating a large amount of heat are mounted. Heat dissipating fins are joined to the surface of each of the metal plates so that when the processor boards are mounted on the main board, the heat dissipating fins do not contact the DC--DC converter. The heat dissipating fins and the DC--DC converters are arranged so that they are vertically disposed one over the other with respect to the main board.


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