Abstract: An optical information recording disk having an improved eccentricity and reduced center hole wear. A metal plate lamination hub member is inserted into and fixed in a central hole in the substrate of the disk. The metal plate lamination member is formed of a metal plate and a resin hub member having center holes dimensioned and aligned such that the center hole in the metal plate forms the center hole of the disk. The metal plate and the resin hub member are attached to one another by ultrasonic welding. The metal plate may have a hardened layer at least around its center hole.

Abstract: A method for manufacturing an optical information recording disk having a reduced eccentricity between the center hole of the disk and the recorded track. A transparent circular substrate is provided having a large circular hole. A metal lamination disk member is formed having an outer diameter larger than the inner diameter of the hole in the substrate and an inner diameter smaller than the inner diameter of the hole in the substrate. The metal lamination disk member is placed on the substrate with an adhesive and positioned so that the center hole in the lamination member is concentric relative to the substrate, whereupon the adhesive is hardened. A molded circular plate is then concentrically mounted having a transfer surface on a main surface of the circular substrate through a setting resin in a liquid phase, which is then hardened.

Abstract: A method for producing banana chips which retain the inherent taste of fresh banana, have excellent appearance without quality repairment due to drying and without any browning. This method comprises the steps of (a) cutting bananas into small pieces; (b) subjecting the pieces of bananas to a temperature conditioning treatment; (c) expanding the temperature conditioned pieces to bananas by quickly reducing the pressure from normal pressure to a prescribed reduced pressure; and (d) heating the expanded pieces of bananas under a reduced pressure; the time elapsed from the cutting steps (a) to the completion of reduction of the pressure in the step (c) being not more than 20 minutes.

Abstract: A method for producing fruit chips comprises the steps of: (a) heating a peach or a melon in syrup having a Brix degree ranging from 12 to 30; (b) cutting the heated peach or melon into small pieces; (c) subjecting the pieces to a temperature conditioning treatment; (d) expanding the pieces subjected to the temperature conditioning treatment; and (e) heating the expanded pieces under a reduced pressure. This method makes it possible to provide chips of peach or melon which retain their inherent fresh taste and have excellent appearance without quality impairment to drying. Moreover, the chips are properly expanded and are crisp.

Abstract: A method for manufacturing an optical information recording disk having a reduced eccentricity between the center hole of the disk and the recorded track. A transparent circular substrate is provided having a large circular hole. A metal lamination disk member is formed having an outer diameter larger than the inner diameter of the hole in the substrate and an inner diameter smaller than the inner diameter of the hole in the substrate. The metal lamination disk member is placed on the substrate with a first adhesive and concentrically arranged relative to the substrate. A second adhesive is applied to peripheral side surface portions of the metal lamination disk member in the vicinity of the surface of the circular substrate. The second adhesive is hardened to temporarily fix metal lamination member to the substrate, and then the first adhesive is hardened.

Abstract: An optical information recording disk comprising a reinforcement disk provided with circumferential banks of spacers and a pair of substrates sandwiching the disk to cover a information bearing layer and spaces therebetween which is of sufficient strength to support itself against deflection when loaded for playing in the player.

Abstract: An information recording disc comprising a generally circular substrate having a polished major surface, a light-reflective coating formed on the polished major surface of the substrate, and a light-absorptive coating formed on the surface of the light-reflective coating and formed with information tracks each consisting of a succession of spaced pits in the light-absorptive coating, the light-absorptive coating being composed of a mixture of cellulose nitrate and a dye sensitizer exhibiting a noticeable light absorptivity in response to light with a predetermined wavelength, the cellulose nitrate being prepared from a starting cellulose containing at least about 97% of alpha-cellulose. If desired, the light-reflective coating may be dispensed with so that the light-absorptive information recording coating is formed directly on the polished surface of the substrate.

Abstract: An optical information recording medium comprises a substrate, a first recording layer formed on the substrate, and a second recording layer formed on the first recording layer. The first recording layer comprises a first light-sensitive material that has been dissolved in a solvent that does not adversely affect the substrate. The second recording layer comprises a different light-sensitive material that has been dissolved in a solvent.

Abstract: An information recording disc comprising a generally circular substrate having a polished major surface, a light-reflective coating formed on the polished major surface of the substrate, and a light-absorptive coating formed on the surface of the light-reflective coating and formed with information tracks each consisting of a succession of spaced pits in the light-absorptive coating, the light-absorptive coating being composed of a mixture of cellulose nitrate and a dye sensitizer exhibiting a noticeable light absorptivity in response to light with a predetermined wavelength, the cellulose nitrate being prepared from a starting cellulose containing at least about 97% of alpha-cellulose. If desired, the light-reflective coating may be dispensed with so that the light-absorptive information recording coating is formed directly on the polished surface of the substrate.

Abstract: A water-in-oil emulsion explosive comprising an aqueous solution of inorganic oxidizer, an oil, an emulsifier and hollow microspheres, and having high low-temperature detonability and storage stability can be produced without causing breakage of the hollow microspheres through particular emulsifying and kneading steps, in which emulsifying step the aqueous solution of inorganic oxider, the oil and the emulsifier are fully emulsified into a water-in-oil emulsion in an emulsifying machine having a novel structure, and in which kneading step the resulting water-in-oil emulsion is kneaded together with the hollow microspheres by means of agitating blades, said agitating blades being arranged in the kneader and carrying out concurrent by rotary motion and up and down movements.

Abstract: A system for developing a photo-resist material of an optical recording medium on which digital information is recorded in the form of a series of pits whose position and length represent the digital information. In order to precisely control the size of the pits formed during the developing process, a diffraction beam of the monitoring energy beam passing through the pits is received by a sensor means which monitors the intensity of the diffraction beam and which produces a signal for controlling the supply of developing solution on the recording medium. A partition means is provided for isolating the path of the monitoring energy beam so as to eliminate absorption, diffraction or scattering effects due to the particles of developing solution sprayed on the surface of the recording medium.

Abstract: A method for producing dried instant noodles containing less than 15% moisture as a final product. It is characterized by dehydrating raw noodles containing 35-45% moisture using super-heated steam and adjusting evaporation of water from the noodles at the rate of 0.25-1.00 g/second per 100 g of the raw noodles.

Abstract: Disclosed is a method and a system for developing a photo-resist material of an optical recording medium on which digital information is recorded in the form of a series of pits whose position and length represent the digital information. In order to precisely control the size of the pits formed during the developing process, and to reduce the deviation from one recording medium to another, a monitoring beam is applied on the recording medium during the developing process. A diffraction beam of the monitoring energy beam passes through the pits, and is received by a sensor means which monitors the intensity of the diffraction beam and which produces a signal for controlling the supply of developing solution on the recording medium.

Abstract: A container for electronic devices including heat generating elements comprises at least a first vertical wall portion formed therein with a closed conduit system and a heat exchange medium filling said closed conduit system, said heat exchange medium changing states from liquid to vapor by absorbing the heat generated by said elements, a lower end portion of said wall portion being adapted to be thermally connected to said elements.

Abstract: A double-base granular propellant consisting mainly of nitroglycerine and nitrocellulose, said nitrocellulose being formed into a three-dimensional structure by the crosslinking reaction of a polyfunctional isocyanate, is disclosed. The propellant is superior to conventional double-base granular propellant in the shooting performance, and can be obtained by a simple solvent-granulation process.

Abstract: A double-base granular propellant consisting mainly of nitroglycerine and nitrocellulose, said nitrocellulose being formed into a three-dimensional structure by the crosslinking reaction of a polyfunctional isocyanate, is disclosed. The propellant is superior to conventional double-base granular propellant in the shooting performance, and can be obtained by a simple solvent-granulation process.

Abstract: A process for manufacturing concrete articles of improved initial strength and long-term strength from a hydraulic cement composition capable of forming predominantly tobermorite group crystalline calcium silicate hydrate is provided. The hydraulic cement composition, having incorporated therein specified amounts of alumina cement and calcium hydroxide and/or oxide, is initially set in a mold and after the concrete so formed is allowed to stand at a temperature of not higher than approximately 40.degree. C for a period of 2 hours to 5 days, the concrete is finally cured at an elevated temperature and pressure.

Abstract: A capsulated explosive composition comprising a high molecular weight compound forming the capsule wall and an explosive forming the core is high in power and low in sensitivity and vapor pressure, and can be easily handled.