Abstract: An apparatus for producing a microporous plastic film comprising a pattern roll having large numbers of high-hardness, fine particles; an anvil roll opposing the pattern roll; a conveying means for passing a plastic film through a gap of both rolls; a stationary frame rotatably supporting one of both rolls; a pair of laterally arranged movable frames rotatably supporting the other roll; and a pair of laterally arranged carriages to each of which each of the movable frames is fixed; at least one of the carriages moving in a running direction of the plastic film to generate positional difference between a pair of the movable frames, so that the center axes of both rolls are relatively inclined to each other.

Abstract: An apparatus for producing a microporous plastic film comprising a pair of vertical columns; a pair of stationary frames each fixed to each vertical column such that they are positioned inside the vertical columns; a pair of movable frames rotatable under the stationary frames; a pattern roll rotatably supported by the stationary frames at a fixed position; an anvil roll movable up and down along first vertical guide rails of the stationary frames; and a lower backup roll movable up and down along second vertical guide rails of the movable frames; the pattern roll being in parallel with the anvil roll; the first and second vertical guide rails being distant from the vertical columns on one side, such that rotating movable frames and lower backup roll do not come into contact with the vertical columns; with the lower backup roll inclined to the anvil roll in a horizontal plane, large numbers of fine pores being formed on the plastic film by the high-hardness, fine particles of the pattern roll.

Abstract: An electromagnetic-wave-absorbing composite sheet comprising an electromagnetic-wave-shielding film laminated on an electromagnetic-wave-absorbing film; the electromagnetic-wave-absorbing film comprising a single- or multi-layer thin metal film formed on a surface of a plastic film, the thin metal film being provided with large numbers (pluralities) of substantially parallel, intermittent, linear scratches with irregular widths and intervals in plural directions; the electromagnetic-wave-shielding film being a conductive metal foil, a plastic film having a thin conductive metal film or coating, or a carbon sheet; and an area ratio of the electromagnetic-wave-shielding film to the electromagnetic-wave-absorbing film being 10-80%.

Abstract: An electromagnetic wave absorption cable comprising an electromagnetic-wave-absorbing tape spirally wound around the inner insulating sheaths surrounding conductor wires, an insulating layer, and an electromagnetic-wave-reflecting layer; the electromagnetic-wave-absorbing tape being constituted by laterally partially overlapped two electromagnetic-wave-absorbing films; a thin metal film of each electromagnetic-wave-absorbing film being provided with large numbers of substantially parallel, intermittent, linear scratches with irregular widths and intervals in plural directions; the linear scratches in each electromagnetic-wave-absorbing film having a crossing angle ?s of 30-90°; the linear scratches in both electromagnetic-wave-absorbing films being crossing; and the total (D2+D3) of the longitudinal width D2 of an overlapped portion of the electromagnetic-wave-absorbing films and the longitudinal width D3 of an overlapped portion of the electromagnetic-wave-absorbing tape being 30-70% of the longitudinal widt

Abstract: An electromagnetic-wave-absorbing composite sheet contains an electromagnetic-wave-absorbing film, and an electromagnetic-wave-shielding film laminated on the electromagnetic-wave-absorbing film, wherein the electromagnetic-wave-absorbing film is formed of a thin Ni or conductive polymer film having surface resistance in a range of 50-200 ?/square, which is disposed on a surface of a plastic film, and an area ratio of the electromagnetic-wave-shielding film to the electromagnetic-wave-absorbing film is 10-80%.

Abstract: An electromagnetic-wave-absorbing composite sheet comprising an electromagnetic-wave-absorbing magnetic film, and an electromagnetic-wave-shielding film laminated on the electromagnetic-wave-absorbing magnetic film; the electromagnetic-wave-absorbing magnetic film comprising magnetic powder uniformly dispersed in a binder resin; the electromagnetic-wave-shielding film being a conductive metal foil, a plastic film having a thin conductive metal film or coating, or a carbon sheet; and an area ratio of the electromagnetic-wave-shielding film to the electromagnetic-wave-absorbing magnetic film being 10-80%.

Abstract: An apparatus for producing an easy-to-tear plastic film comprising a pattern roll rotatably supported by a pair of stationary frames, an anvil roll moving along a pair of movable frames, a first driving unit for rotating the movable frames, and second driving units each mounted to the movable frame to move the anvil roll up and down; high-hardness, fine particles projecting from a rolling surface of the pattern roll having such average height and maximum height as enabling the formation of unpenetrating fine pores in a plastic film; with the anvil roll inclined to the pattern roll in a horizontal plane by the operation of the first driving unit, large numbers of unpenetrating fine pores being formed transversely uniformly in the plastic film passing through a gap of both rolls.

Abstract: An apparatus for producing a macroporous plastic film comprising a first roll rotatably supported by stationary frames; a second roll movable up and down along movable frames; a first driving means for rotating the movable frames; and second driving means mounted to the movable frames for moving the second roll up and down; one of the first and second rolls being a pattern roll having large numbers of high-hardness, fine particles on its rolling surface, and the other being an anvil roll; large numbers of fine pores being formed in the plastic film by the high-hardness, fine particles, in a state where the center axis of the second roll is inclined to the center axis of the first roll in a horizontal plane by the operation of the first driving means.

Abstract: An electromagnetic-wave-absorbing composite sheet comprising an electromagnetic-wave-absorbing film, and an electromagnetic-wave-shielding film laminated on the electromagnetic-wave-absorbing film; the electromagnetic-wave-absorbing film comprising a thin Ni or conductive polymer film having surface resistance in a range of 50-200 ?/square, which is formed on a surface of a plastic film; and an area ratio of the electromagnetic-wave-shielding film to the electromagnetic-wave-absorbing film being 10-80%.

Abstract: An electromagnetic-wave-absorbing composite sheet comprising an electromagnetic-wave-shielding film laminated on an electromagnetic-wave-absorbing film; the electromagnetic-wave-absorbing film comprising a single- or multi-layer thin metal film formed on a surface of a plastic film, the thin metal film being provided with large numbers (pluralities) of substantially parallel, intermittent, linear scratches with irregular widths and intervals in plural directions; the electromagnetic-wave-shielding film being a conductive metal foil, a plastic film having a thin conductive metal film or coating, or a carbon sheet; and an area ratio of the electromagnetic-wave-shielding film to the electromagnetic-wave-absorbing film being 10-80%.

Abstract: An apparatus for producing a microporous plastic film comprising a pair of vertical columns; a pair of stationary frames each fixed to each vertical column such that they are positioned inside the vertical columns; a pair of movable frames rotatable under the stationary frames; a pattern roll rotatably supported by the stationary frames at a fixed position; an anvil roll movable up and down along first vertical guide rails of the stationary frames; and a lower backup roll movable up and down along second vertical guide rails of the movable frames; the pattern roll being in parallel with the anvil roll; the first and second vertical guide rails being distant from the vertical columns on one side, such that rotating movable frames and lower backup roll do not come into contact with the vertical columns; with the lower backup roll inclined to the anvil roll in a horizontal plane, large numbers of fine pores being formed on the plastic film by the high-hardness, fine particles of the pattern roll.

Abstract: An electromagnetic wave absorption cable comprising an electromagnetic-wave-absorbing tape spirally wound around the inner insulating sheaths surrounding conductor wires, an insulating layer, and an electromagnetic-wave-reflecting layer; the electromagnetic-wave-absorbing tape being constituted by laterally partially overlapped two electromagnetic-wave-absorbing films; a thin metal film of each electromagnetic-wave-absorbing film being provided with large numbers of substantially parallel, intermittent, linear scratches with irregular widths and intervals in plural directions; the linear scratches in each electromagnetic-wave-absorbing film having a crossing angle ?s of 30-90°; the linear scratches in both electromagnetic-wave-absorbing films being crossing; and the total (D2+D3) of the longitudinal width D2 of an overlapped portion of the electromagnetic-wave-absorbing films and the longitudinal width D3 of an overlapped portion of the electromagnetic-wave-absorbing tape being 30-70% of the longitudinal widt

Abstract: An electromagnetic-wave-absorbing filter comprising an electromagnetic-wave-absorbing layer, an insulating layer, and an electromagnetic-wave-shielding layer in this order from inside; the electromagnetic-wave-absorbing layer being constituted by a laminate of at least two electromagnetic-wave-absorbing films; each electromagnetic-wave-absorbing film comprising a plastic film and a thin metal film formed on a surface of the plastic film, the thin metal film being provided with large numbers of linear scratches in plural directions; the acute crossing angle ?s of linear scratches in each electromagnetic-wave-absorbing film being 30-90°; the linear scratches in two electromagnetic-wave-absorbing films being crossing; two electromagnetic-wave-absorbing films having different lengths; and a ratio of the length L2 of a shorter electromagnetic-wave-absorbing film to the length L1 of a longer electromagnetic-wave-absorbing film being 30-70%.

Abstract: An apparatus for producing an easy-to-tear plastic film comprising a pattern roll rotatably supported by a pair of stationary frames, an anvil roll moving along a pair of movable frames, a first driving unit for rotating the movable frames, and second driving units each mounted to the movable frame to move the anvil roll up and down; high-hardness, fine particles projecting from a rolling surface of the pattern roll having such average height and maximum height as enabling the formation of unpenetrating fine pores in a plastic film; with the anvil roll inclined to the pattern roll in a horizontal plane by the operation of the first driving unit, large numbers of unpenetrating fine pores being formed transversely uniformly in the plastic film passing through a gap of both rolls.

Abstract: An apparatus for producing a macroporous plastic film comprising a first roll rotatably supported by stationary frames; a second roll movable up and down along movable frames; a first driving means for rotating the movable frames; and second driving means mounted to the movable frames for moving the second roll up and down; one of the first and second rolls being a pattern roll having large numbers of high-hardness, fine particles on its rolling surface, and the other being an anvil roll; large numbers of fine pores being formed in the plastic film by the high-hardness, fine particles, in a state where the center axis of the second roll is inclined to the center axis of the first roll in a horizontal plane by the operation of the first driving means.

Abstract: An apparatus for producing a microporous plastic film comprising a pattern roll having large numbers of high-hardness, fine particles; an anvil roll opposing the pattern roll; a conveying means for passing a plastic film through a gap of both rolls; a stationary frame rotatably supporting one of both rolls; a pair of laterally arranged movable frames rotatably supporting the other roll; and a pair of laterally arranged carriages to each of which each of the movable frames is fixed; at least one of the carriages moving in a running direction of the plastic film to generate positional difference between a pair of the movable frames, so that the center axes of both rolls are relatively inclined to each other.