Abstract: A cooling apparatus is constructed wherein, a fan box is provided with a plurality of suction openings and exhaust openings formed on a suction main surface and an exhaust main surface opposite to each other, a plurality of fan units each comprising a multi-blade fan and a suction duct disposed in different positions in a inserting direction are alternately arranged in an axial direction of the multi-blade fan so as to be able to insert and drawn out, and the fan unit is configured so that a suction duct thereof operates as a suction passage for the multi-blade fans of the next fan unit by communicating a fan suction opening with the suction opening through the suction duct and communicating a fan exhaust opening with the exhaust opening.
Type:
Grant
Filed:
August 21, 2002
Date of Patent:
February 18, 2003
Assignees:
Hitachi, Ltd., Hitachi Video and Information System, Ltd.
Abstract: When installing a new system application in the terminal device which can read from and store in the IC card, the application is installed by communicating with a host machine through a connector for the IC card attached to the terminal device, without an exclusive interface mechanism for installing the application.
Type:
Grant
Filed:
September 8, 1999
Date of Patent:
January 7, 2003
Assignees:
Hitachi, Ltd., Hitachi Video and Information System, Ltd.