摘要:
A magnetic recording medium having a triple layered structure including a substrate, a first layer or a soft magnetic thin film of high permeability piled on the substrate, a second layer or a vertical magnetization film piled on the first layer, a third layer or a soft magnetic film of high permeability piled on the second layer. A magnetic recording apparatus alternately switches the magnetization orientations of the second layer or the vertical magnetization film at a recording location where a latent image is to be formed. The first and third layer or the soft magnetic thin films can improve recording efficiency. The field produced by the second layer or the vertical magnetization film causes the third layer or the soft magnetic thin film to be magnetized along the surface of the magnetic recording medium, and this results in the concentration of the flux owing to switching of the magnetization directions. This enables high density recording and improves recording sensitivity and reproducing sensitivity.
摘要:
A magnetic recording medium having a substrate, and an artificial superlattice deposited on the substrate as a vertical magnetization film. The artificial superlattice is a Co/Pt artificial superlattice which is composed of alternate Co and Pt layers deposited on the substrate. The magnetic recording medium is fabricated by the steps of: disposing a Co target and a Pt or Pd target separating from a substrate; performing an RF sputtering to the substrate by alternately facing the substrate with the Co target and the Pt or Pd target by means of periodical movement of the substrate, thereby forming a Co/Pt or Co/Pd artificial superlattice) on the substrate; and performing heat treatment to the Co/Pt or Co/Pd artificial superlattice at a temperature T in the range of 200.degree. C. to 450.degree. C. inclusive.
摘要:
The present invention aims to provide a package for absorbent articles allows the consumers to recognize at a glance principal functional information of the article displayed on the front surface of the package and thereby to be adequately informed of these principal functions. Two or more function displays on the front surface of the article package may be divided into a main-function display element and sub-function display elements wherein the main-function display element is displayed to be accentuated in comparison with the respective sub-function display elements.
摘要:
This invention relates to an anti-counterfeit printed matter such as a banknote or a passport which requires anti-counterfeit or anti-copy, a method of manufacturing the same, and a recording medium storing halftone dot data creation software.Units are arranged at a predetermined pitch in a matrix on a base material in a first direction and a second direction perpendicular to the first direction, each unit including a first object and a second object which are arranged along the first direction on both sides of a center so as to oppose each other and a third object arranged in a region without the first object and the second object, the first object and the second object of each of the units have an on/off relationship and the same area, the first objects form one of a positive image and a negative image of a first invisible image, and the second objects form the other of the negative image and the positive image of the first invisible image, and the third objects form a visible image having a continuous tone.