摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.