Patent ID: 11867471
Assignee: SHOWA DENKO PACKAGING CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  Y | IPC F  H

Claim 4:
5. The heat exchanger as recited in claim 4,
wherein each of the join pipes is provided with a resin thermal fusion layer on an outer peripheral surface of each of the joint pipes,
wherein the outer packaging laminate materials are stacked one on the other via the joint pipes, the resin thermal fusion layers of the outer packaging laminate materials are integrally joined to the resin thermal fusion layers of the joint pipes, and the joint pipes are attached to the at least one outer packaging material in a sealed state, and
wherein the resin thermal fusion layer of the outer packaging laminate material and the resin thermal fusion layer of each of the joint pipes are made of the same kind of resin.