Patent application number | Description | Published |
20100068441 | EASY-TO-STRAIGHT-TEAR PLASTIC FILM, AND ITS PRODUCTION METHOD AND APPARATUS - An apparatus for producing a long, easy-to-straight-tear plastic film having large numbers of substantially parallel half-cut lines extending in a transverse direction on at least one surface, comprising (a) a roll having at least one cam axially extending on a circular surface of said roll, and (b) a cutter arranged in parallel to said roll with a gap narrower than the thickness of said plastic film, the rotation of said roll causing said cam to intermittently push said plastic film to said cutter to form half-cut lines on said plastic film. | 03-18-2010 |
20110268925 | COMPOSITE ELECTROMAGNETIC-WAVE-ABSORBING FILM - A composite electromagnetic-wave-absorbing film comprising pluralities of adjacent electromagnetic-wave-absorbing film pieces arranged on a plastic base film, each electromagnetic-wave-absorbing film piece being a plastic film provided with a conductor layer having a large number of substantially parallel, intermittent, linear scratches formed with irregular widths and intervals in plural directions, and pluralities of the electromagnetic-wave-absorbing film pieces being different in at least one of the widths, intervals, lengths and directions of the linear scratches. | 11-03-2011 |
20130129852 | APPARATUS FOR FORMING SLANT, LINEAR EASY-TO-TEAR PORTIONS ON LONG PLASTIC FILM - An apparatus for periodically forming slant, linear easy-to-tear portions on a long plastic film, comprising a hard roll on which the long plastic film passes, pluralities of pattern rolls each having a slant, linear stamp means on a rolling surface, a motor-driven shaft to which the pattern rolls are fixed, and a mechanism for pushing the pattern rolls toward the hard roll, the movement of the pressure rolls toward the hard roll causing the pattern projections of the stamp means to be pressed onto the plastic film on the hard roll, thereby periodically forming the slant, linear easy-to-tear portions on the plastic film. | 05-23-2013 |
20130284511 | NEAR-FIELD NOISE SUPPRESSION SHEET - A near-field noise suppression sheet comprising a pair of plastic films each having a thin metal film on one surface, the plastic films being adhered by a conductive adhesive with the thin metal films inside, each thin metal film being made of a magnetic metal, and having a controlled thickness such that a pair of the adhered thin metal films have surface resistance of 20-150 Ω/square. | 10-31-2013 |
20130285846 | NEAR-FIELD ELECTROMAGNETIC WAVE ABSORBER - A near-field electromagnetic wave absorber formed by adhering pluralities of electromagnetic-wave-absorbing films each having a thin metal film formed on a surface of a plastic film, the thin metal film of at least one electromagnetic-wave-absorbing film having a thin film layer of a magnetic metal, and a large number of substantially parallel, intermittent linear scratches being formed in plural directions with irregular widths and irregular intervals on the thin metal film of at least one electromagnetic-wave-absorbing film. | 10-31-2013 |
20140141267 | NEAR-FIELD NOISE SUPPRESSION FILM - A noise suppression film having reduced unevenness of electromagnetic wave noise absorbability, which comprises a thin Ni film, which is vapor-deposited on one surface of a stretched plastic film of polyethylene terephthalate, and then subject to a heat-shrinkage-causable heat treatment at a temperature in a range of 110-170° C. for 10 minutes to 1 hour, (a) the light transmittance of the thin Ni film measured with laser rays having a wavelength of 660 nm being 3-50%, and (b) the surface resistance of the thin Ni film being 10-200 Ω/square when measured on its square test piece TP of 10 cm×10 cm under a load of 3.85 kg applied via a flat pressure plate, with a pair of electrodes each having a length completely covering a side of the test piece disposed on opposing side portions of the test piece. | 05-22-2014 |
20140154469 | ELECTROMAGNETIC-WAVE-ABSORBING FILM HAVING HIGH THERMAL DISSIPATION - An electromagnetic-wave-absorbing film comprising a plastic film, and a single- or multi-layer thin metal film formed on at least one surface thereof, the thin metal film being provided with large numbers of substantially parallel, intermittent, linear scratches with irregular widths and irregular intervals in plural directions, and coated with a thin carbon nanotube layer. | 06-05-2014 |
20150027771 | COMPOSITE ELECTROMAGNETIC-WAVE-ABSORBING SHEET - A composite electromagnetic-wave-absorbing sheet comprising (a) a first electromagnetic-wave-absorbing film | 01-29-2015 |