Abstract:
According to one embodiment, a magnetic recording medium includes a magnetic recording layer formed above a substrate, the magnetic recording layer being comprised of an alloy having a crystal structure, recording tracks formed on the magnetic recording layer in nearly concentric circular shapes, wherein the recording tracks are comprised of a first alloy composition having a crystal structure, and track separation regions formed between the recording tracks on the magnetic recording layer, wherein the track separation regions are comprised of a second alloy composition having a crystal structure, the second alloy composition comprising the first alloy composition and a non-magnetic element, wherein a lattice constant of the second alloy composition is greater than a lattice constant of the first alloy composition. In other embodiments, methods of manufacturing magnetic recording media and systems using magnetic recording media are described.
Abstract:
Embodiments of the present invention provide recording area separated magnetic recording media (DTMs, BPMs) allowing magnetic heads to fly lower. According to one embodiment, the recording area separated magnetic recording media are configured so that magnetic recording layers have parts with the relatively higher element ratio of a ferromagnetic material, and parts with the lower element ratio of the ferromagnetic material, occurring periodically in the in-plane direction, and the average height from the substrate surface of the parts with the relatively higher element ratio of a ferromagnetic material is higher than the average height from the substrate surface of the parts with the lower element ratio of the ferromagnetic material. In producing recording area separated magnetic recording media with the element ratio of a ferromagnetic material relatively lowered by ion implantation, preliminarily etching the part to be ion implanted makes the height after ion implantation relatively lower than the non-implanted part.
Abstract:
A plasma processing device include a plasma generation unit for generating plasma by using a cathodic arc discharge, first and second magnetic field ducts arranged in a row for transporting the plasma with one end of the row being connected to the plasma generation unit and a processing chamber connected to the other end of the row unit and having a stage for holding a substrate to be processed. A shutter is provided for covering the plasma during a period of a predetermined time after start of arc discharge or during a period of predetermined time before end of arc discharge. The shutter is disposed between the first magnetic field duct and the substrate to be processed, and is movable. The shutter is capable of being supplied with a voltage, and is kept in a state so as to be electrically insulated from the processing chamber.
Abstract:
A method of forming a metal oxide film on a substrate by a reactive DC sputtering device with introducing thereinto a reaction gas and an inert gas includes the steps of: (a) regulating a flow rate ratio or a pressure ratio of the reaction gas to the inert gas to not higher than 0.4; (b) increasing a power input to the sputtering device to a first predetermined value such that a discharge voltage increases to a maximum value and then decreases from the maximum value; and (c) decreasing the power input from the first predetermined value to a second predetermined value immediately after the discharge voltage starts to decrease from the maximum value so as to suppress a metal formation on the substrate, the steps (b) and (c) being alternately repeated for a certain period for completing the metal oxide formation on the substrate.
Abstract:
A device for controlling transmittance of light therethrough includes first and second transparent substrates which are spaced from each other. The first substrate has at an end portion thereof a notch. First and second transparent electrode layers are respectively coated on inner surfaces of the first and second substrates for defining a space therebetween. The first layer is partially cut off so as to conform to a periphery of said notch. An electro-optically responsive material substantially fills up the space. The material is made so as to allow transmittance of light therethrough to change in response to voltages applied between the first and second layers. A terminal is received in said notch and said space, and is sized so as to be biased against the first substrate and the second layer so as to ensure an electrical contact between the terminal and the second layer.
Abstract:
The invention provides an antenna disclosed on or in a vehicle window glass, e.g. an automobile rear window glass, for receiving FM broadcast waves. The antenna has a main element, which extends horizontally from a side marginal region of the glass pane to a middle region but does not intersect the longitudinal center axis of the glass pane, and a phase adjusting element which extends parallel to the main element from the same side marginal region and is connected at its end in the side marginal region to the main element by a perpendicular line. The feed point is connected to an arbitrary point on the perpendicular line. The main element may be folded so as to have at least one horizontally extending turn-back part. The phase adjusting element may extend to the opposite side marginal area of the glass pane and may be folded so as to have a turn-back part which extends horizontally without intersecting the center axis of the glass pane. This antenna is almost non- directional and is high in gain over the entire range of the 76-90 MHz band and the 88-108 MHz band.
Abstract:
The invention relates to an electrochromic (EC) display device having a transparent electrode layer coated with a first EC material which takes on color in its electrochemically oxidized state, such as Prussian blue, and an opposite transparent electrode layer coated with a second EC material which takes on color in its reduced state, such as WO.sub.3. For use in initial bleaching or coloration of one of the two EC layers, an auxiliary electrode is disposed in a marginal region of the space between the two opposite electrodes, and an electrolyte occupies the remaining space. An insulating covering permeable to ions intervenes between the electrolyte and the body of the auxiliary electrode, and an insulating layer substantially impermeable to ions intervenes between the auxiliary electrode body and each transparent electrode layer or the overlying EC layer to prevent leakage current. This manner of insulation of the auxiliary electrode is effective in shortening the length of time required for the initial bleaching or coloration treatment and extending memory time of the display device in actual operation.
Abstract:
A key switch device having a plurality of keys and a plurality of light emission diode tips for indicating the keys operated, respectively. The diode tips are mounted and electrically connected to metal patterns formed on the same surface of a printed circuit on which fixed contact pairs are formed. In order to cover the diode tips, a transparent plate is overlaid on the printed circuit board and has lamp cover portions. The transparent plate is also provided with small upwardly opening funnel shaped slits at positions between adjacent lamp cover portions, whereby light from one light emission diode is prevented from leaking to a lamp cover corresponding to the adjacent light emission diode.
Abstract:
A device for controlling electric current flowing through a conductor-coated, condensation-free transparent glass sheet in response to the presence of moisture on the surface of the sheet. Moisture-detecting electrodes forming part of an oscillator are attached to the surface of the sheet and receive an AC voltage developed within the oscillator. The electrical resistance between the electrodes changes in response to the amount of moisture and alters the level of output from an oscillator. A relay circuit is controlled by the oscillator output to switch a power supply circuit on and off, thereby controlling the current flowing through the glass sheet.