摘要:
The object of the invention is to provide a method of polishing the end surfaces of a substrate for a recording medium, which is capable of efficiently polishing the inner peripheral end surface and/or the outer peripheral end surface of the substrate preventing the reliability of performance of the recording medium from being impaired by the adhesion of the residual polishing material. According to the invention, there is provided a method of polishing end surfaces of a substrate for a recording medium wherein an inner peripheral end surface or an outer peripheral end surface of a substrate for a disk-like recording medium having a circular hole at the central portion thereof is brought into contact with a polishing medium obtained by dispersing polishing grains in a viscoelastic resin carrier and the polishing medium flows, thereby to polish the inner peripheral end surface or the outer peripheral end surface.
摘要:
A chamfering apparatus is used to chamfer a peripheral edge of a glass substrate. The chamfering apparatus includes a grindstone having a cylindrical hollow end portion; a grindstone driving unit that rotates the grindstone around an axis of the cylindrical hollow end portion; a substrate rotation-driving unit that rotates the glass substrate around either one of an axis of the outer periphery and an axis of the center circular hole; and a pressing unit that presses the grindstone to the glass substrate such that an annular end surface of the grindstone contacts with an edge of either one of the outer periphery and the inner periphery of the glass substrate while the cylindrical hollow end portion of the grindstone faces with one of the outer periphery and the inner periphery of the glass substrate.
摘要:
A glass block is formed by stacking, fixing, and integrating a plurality of thin glass plates having a predetermined thickness. An annular glass block is formed by coring the glass block. Surfaces of an inside circumference and an outside circumference of the annular glass block are ground. The annular glass block of which the surfaces of the inside circumference and the outside circumference are ground are separated into individual annular glass substrates, and separated annular glass substrates are cleaned. Then, edge portions of the inside circumference and the outside circumference of a cleaned annular glass substrate are chamfered.
摘要:
There is provided a download execution apparatus that can prevent, at least, sudden interruption of the viewing or recording by a user when a program is downloaded. An AM (1205b) includes a download source determination unit (2901) which compares current tuning information and a frequency required for downloading, and determines a download source, a tuning frequency obtainment unit (2902) which obtains tuner use situation and the frequency being tuned to by respective tuners that are in use, a download frequency obtainment unit (2903) which obtains a frequency required to download an application, a store unit (2904) which downloads and stores a program from a determined download source, a notification unit (2905) which notifies the downloading of the program to a user, and a tuning request unit (2906) which tunes a specified tuner to a frequency required for downloading a program.
摘要:
Unlike the technology for a program downloaded through conventional broadcast waves, in the case of downloading a program via a network, there is a possibility that such program will be activated without noticing that the program is tampered with. For this reason, when a program is downloaded via a network, a file hierarchy for the program located on a server is constructed in a local area of a terminal. Subsequently, the authentication of the program is performed with respect to the file hierarchy constructed in the local area, and the credibility of the program is guaranteed.
摘要:
A method of and apparatus for checking a wrapping state of a wrapped roll having end face covers by detecting the force required to press-fit a bushing into a cylindrical core tube and comparing the detected force with a threshold value which is based on the correlation between the force required to press-fit the bushing into the cylindrical core tube and the state of tucking of the end face covers.
摘要:
An original roll positioning device sets a position of an end face of a new roll at a predetermined reference position. An end pull-out device sucks and pulls out the leading end of the new web from the positioned new roll at a predetermined length. A pair of roll-up chucks of an end roll-up device holds both sides of the leading end of the pulled-out web, and the roll-up chucks are rotated to roll up the leading end of the web at a predetermined length. A suction box sucks the web at a part between the roll up chucks and the roll, and then a cutter cuts the web along the width of the web to form a splicing part. The splicing part is sucked by the suction box, and the spliced part is made to wait in this state until the start of the splicing operation.
摘要:
A wrapping state of a wrapped roll of a continuous sheet material which is rolled and wrapped with a sheet-like wrapping material is checked by taking an image of the wrapped roll placed in a predetermined position, and processing information on the image of the wrapped roll with respect to the density of the image, thereby detecting data on wrapping state of the wrapped roll, and determining whether the wrapping state of the wrapped roll is satisfactory on the basis of the detected data.
摘要:
A recording apparatus of the kind arranged to perform recording by moving a carriage on which a recording head is mounted is provided with a linear encoder which consists of a linear scale part arranged in parallel to a moving route of the carriage to have position information recorded in the longitudinal direction thereof at a predetermined pitch and a detecting head arranged to detect the position information of the scale part. The detecting head includes a protective film thereon and a slider which fittingly engages the scale part and is formed with a polyphenylene sulfide material containing 10 to 50% of a filler.
摘要:
In a microwave apparatus with an air-tight window plate, first and second coaxial waveguide assemblies are coupled to each other so that a coaxial waveguide is formed. The first and second inner conductor sections of the first and second assemblies have first and second metal blocks. The first metal block is fitted in the second metal block by a shinkage fit and the first outer conductor section of the first assembly is air-tightly welded to the second outer conductor section of the second assembly. An RF matching annular groove is defined between the first and second metal blocks.