Matsushita Electric Works, Ltd.

Takeshi Okamoto

Hiroshi Maeda

Kazushi Kawamura

Yoshimitsu Nakamura

Toshiyuki Suzuki

Kazuo Kamada

Ryuji Ohtani

Yosiyuki Uchinono

Hirohiko Tohgeyama

Kunzi Nakashima

A method and apparatus for manufacturing laminates are arranged for forming a laminate block by sequentially folding back continuous metal sheets,and,drawn through outlets,out of rolls,and,of the sheets wound on reels,and,, with synthetic resin sheet members,and interlayers,alternately interposed between the metal sheets, into multiple stages, and pressing the thus stacked laminate block while electrically heating the continuous metal sheets,and,in the laminate block, wherein the stacking is performed while keeping the continuous metal sheets,and,in tension between the outlets,of the reels,and,and each end edge of the laminate block

Method for manufacturing laminates

A method for manufacturing a laminate includes steps of forming a laminated combination of synthetic resin sheet material with a metal foil laminated each other, thermoforming under a pressure the laminated combination while supplying an electric current to the metal foil, and, after termination of the current supply, cooling thus obtained laminate while further applying a pressure, whereby the laminated combination can be uniformly heated into its core part to allow the laminate of uniform quality to be obtained, while shortening manufacturing lead time and minimizing surface roughness.

Method for manufacturing laminate and apparatus for manufacturing same

A method and apparatus for manufacturing laminates are arranged for forming a laminate block by sequentially folding back continuous metal sheets 3 and 4 drawn through outlets 16 out of rolls 5 and 6 of the sheets wound on reels 1 and 2, with synthetic resin sheet members 9 and interlayers 10 alternately interposed between the metal sheets, into multiple stages, and pressing the thus stacked laminate block while electrically heating the continuous metal sheets 3 and 4 in the laminate block, wherein the stacking is performed while keeping the continuous metal sheets 3 and 4 in tension between the outlets 16 of the reels 1 and 2 and each end edge of the laminate block 12.

Method for manufacturing laminates and apparatus performing the method

A method for manufacturing a printed circuit board is to form on a top surface of an insulating substrate a layer of such plating ground as a metal film, to irradiate such electromagetic wave as a laser to a boundary edge zone of non-circuit parts with respect to circuit-printing parts on the insulating substrate in correspondence to a pattern of the non-circuit parts to remove the plating ground layer at the part irradiate by the electromagnetic wave with the plating ground layer at the non-irradiated part left as formed, and thereafter to form a plating on the surface of the plating ground layer at the non-irradiated parts, whereby it is enabled to allow the laser irradiation to be carried out only with respect to the boundary edge zone of the non-circuit parts, without irradiating all over the non-circuit parts.

Growing community of inventors

Kadoma, Japan

Takeshi Okamoto