摘要:
An optical information recording medium includes a recording layer that absorbs recording light in accordance with its wavelength, the recording light being condensed for information recording, and increases the temperature in the vicinity of a focus so as to form a recording mark and that has properties of increasing a light absorption amount with respect to the wavelength of the recording light by heating performed at a temperature of 120° C. or more.
摘要:
An optical information recording and reproducing device 1 irradiates initialization light L1 to an optical information recording medium 100 having a recording layer 101 made of photopolymerization-type photopolymer in advance to bring about the photopolymerization or the photocrosslinking to perform the initialization processing, and condenses a recording light beam L2c having a comparatively strong light intensity to a target position in the recording layer 101 and increases the temperature thereof to transubstantiate the target position to record a recording mark RM at the time of recording information, and condenses a reading light beam L2d having a comparatively weak light intensity to the target position and receives a returned light beam L3 having a sufficient light amount reflected by the recording mark RM at the time of reproducing information, which makes it possible to reliably record the recording mark RM and stably read out the recording mark RM.
摘要:
An optical information recording medium includes a recording layer provided on a cured resin on which a recording mark is formed by the temperature rise around a focal point caused by absorbing a predetermined recording beam converged for recording of information according to the wavelength of the recording beam and from which the information is reproduced, when a predetermined reading beam is emitted for reproducing of the information, based on the optically-modulated reading beam, wherein the recording layer includes an activated recording area that has been activated as a result of being exposed to an activating beam whose light intensity is at a predetermined light intensity level.
摘要:
Provided is a component bonding method with higher bonding precision in a process of bonding an electrode of a component to an electrode formed on a flat panel. A preliminary press bonding device includes: a control unit which includes a position displacement amount correction unit to which a position displacement amount after the press bonding process is fed back and which corrects the position displacement on the next component to be preliminarily bonded; and a component position determining unit which determines a position of the component using the fed back correction amount. On the other hand, a press bonding device includes a bonding recognition device for use in the recognition of positions of the electrodes on the flat panel and the component. The bonding recognition device includes a position displacement amount calculating unit which calculates the position displacement amount based on the recognized position information.
摘要:
An occurrence of component lack at a component arrangement position, designated by a mounting program, of a component feed part, which feeds components to be mounted, is determined. Whether a spare component for the lacking component to be mounted is present in a spare component feed area of the component feed part is determined, and supply of the component to be mounted from a designated component arrangement position of the component feed part is switched to supply of the spare component from the spare component feed area.
摘要:
A polyimide film of 20 to 125 &mgr;m thick composed of aromatic polyimide prepared from an aromatic tetracarboxylic acid component (composed mainly of 3,4,3′,4′-biphenyltetracarboxylic acid or its derivative) and an aromatic diamine component (composed mainly of p-phenyl-enediamine) and containing a micro-granular filler of metal atom-containing inorganic material, can be so denatured on its surfaces that an amount of the metal atom and a ratio of oxygen/carbon would increase by 0.03 to 1.0 atomic % and 0.01 to 0.20, respectively, on the processed surfaces, upon running in a gaseous mixture of argon and hydrogen between a plurality of activated plasma discharge electrodes arranged in a double line under such condition that the running polyimide film is free from contact with the electrodes.
摘要:
In a magnetic recording medium according to the present invention, a magnetic layer consisting of a metal magnetic material is formed on the upper surface of a non-magnetic support member, a protective layer is formed on the magnetic layer, and a back-coat layer is formed on the rear surface of the non-magnetic support member. In the present invention, in particular, the protective layer is formed by a thin film containing carbon as a main component and 5 to 20 atom % of hydrogen, and the back-coat layer is formed by a thin film containing carbon as a main component and 5 to 20 atom % of hydrogen, thereby making it possible to obtain a magnetic recording medium having excellent sliding characteristics and excellent durability.
摘要:
A method for treating ozone layer depleting substances, in which a gaseous composition comprising helium or argon or a mixture thereof, or a gaseous mixture of argon and acetone, is introduced into a plasma reactor having a dielectric-coated electrode comprising a solid dielectric disposed on the surface of at least one of opposing electrodes, an atmospheric pressure glow discharge is generated in the gaseous atmosphere, gaseous ozone layer depleting substances are introduced into the glow discharge to decompose the substances, and resulting decomposition products are absorbed in water.
摘要:
This invention provides a method for the surface treatment of a metal, which comprises the steps of: placing at least a surface to be treated of a metal to be treated between two electrodes facing each other under an atmosphere of a mixed gas consisting of an inert gas and a reactant gas; and plasma exciting said mixed gas under atmospheric pressure to effect glow discharge between said electrodes. The method of the present invention uses an apparatus simpler than that used in a conventional method and can inject into the surface layer of a metal, even those elements which have been difficult to with the conventional method, and can readily modify surface properties of a metal such as surface hardness, surface wettability, etc.
摘要:
Specified sulfur compounds such as N,N-diethylthiourea, N,N-dibutylthiourea, tetramethylthiuram monosulfide, tetrabutylthiuram monosulfide, tetraethylthiuram disulfide, tetrabutylthiuram disulfide are supplied as a coking inhibitor for preventing coking in equipment used in hydrocarbon treatment processes wherein a hydrocarbon is treated at a temperature of from about 250.degree. C. to 950.degree. C. to produce petroleum products, petrochemical products and/or their intermediate products.