Abstract: A plate type thin heat pipe comprises: a group of wire members comprising a plurality of first metal wire members placed in a same plane in parallel with a prescribed distance spaced out, and a plurality of second metal wire members placed in a same plane in parallel with a prescribed distance spaced out and placed so as to cross the plurality of first metal wire members; a container having a hollow portion which is reduced in inner pressure and hermetically sealed comprising an upper plate member and a lower plate member placed face to face, each of which is made of thin copper plate, formed in such a manner that each of the upper plate member and the lower plate member contacts the group of wire members, and the group of wire members are sandwiched by the upper and lower plate members, and water as a working fluid received in the container.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination of heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination of heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: A plate type thin heat pipe comprises: a group of wire members comprising a plurality of first metal wire members placed in a same plane in parallel with a prescribed distance spaced out, and a plurality of second metal wire members placed in a same plane in parallel with a prescribed distance spaced out and placed so as to cross the plurality of first metal wire members; a container having a hollow portion which is reduced in inner pressure and hermetically sealed comprising an upper plate member and a lower plate member placed face to face, each of which is made of thin copper plate, formed in such a manner that each of the upper plate member and the lower plate member contacts the group of wire members, and the group of wire members are sandwiched by the upper and lower plate members, and water as a working fluid received in the container.

Abstract: A heat sink with fins comprising a group of heat dissipating fins which comprise combination or heat dissipating fins made of at least two kinds of metals having different heat conductivity, and a metal base plate on which surface portion the group of heat dissipating fins are densely jointed.

Abstract: There is provided a heat sink comprising a base plate provided with a plurality grooves and concave portions, each of which has a substantially trapezoidal cross section having a flat bottom face and inclined side faces and is formed into a tapered shape, formed between the adjacent grooves by plastic deformation; and a plurality of thin-sheet fins which are inserted in the grooves and are crimped from both sides by the inclined side faces formed by the plastic deformation of the concave portion.