摘要:
A sheet feed roller 10 includes a shaft member 12 and an elastomeric layer 14 provided on the outer circumference of the shaft member 12. The shaft member 12 includes a tubular support 16 and a pair of shaft sections 18 extending in the axial direction to define a rotary axis of the shaft member 12. The elastomeric layer 14 is formed of an elastic member separate from the shaft member 12, and attached to the outer circumference 16a to be conformed with the profile of the support 16 of the shaft member 12. The elastomeric layer 14 includes a base 20 and a plurality of micro-structured elements 22, each having a three-dimensionally projected shape, formed on the surface 20a of the base 20. Each of the plurality of micro-structured elements 22 on the elastomeric layer 14 is brought into frictional contact at a distal end thereof with the sheet medium and feed the same as the shaft member rotates.
摘要:
The present invention provides a signing apparatus used for signing by a user on usage information of a source provided in a format made available by the use of key information. The apparatus includes a unit for generating the usage information which is to be signed, a unit for performing a first computation by utilizing the key information which has been encrypted and the usage information, a unit for performing a second computation by utilizing a user's private key and a result of the first computation. The apparatus further includes a unit for performing a third computation by utilizing a result of the second computation, and thereby generating the key information which has been decrypted and a result of the computation performed on the usage information by utilizing the user's private key. The apparatus further includes a unit for making the source available by utilizing the decrypted key information.
摘要:
A method for driving a matrix type of plasma display panel displaying an image with a stable display operation in error-discharge free. The last pulse of the discharge-sustaining pulses in the sustained discharge period is adjusted to be shorter than that of the immediately previous pulse of the discharge-sustaining pulses and/or an address-pulse is applied to the column electrode in the simultaneous time of the applying of the discharge-sustaining pulses to generate the discharge between the paired row and column electrodes. The residual wall charges remaining the lightened pixel cell and the darkened pixel cell are uniformed at the end of sustained discharge period so that a stable addressing operation and precise emission displaying associated with the pixel data is achieved in the next addressing period.
摘要:
A method for driving a matrix type of plasma display panel is capable of stably displaying an image in error-discharge free. The plasma display panel including a plurality of row electrodes extending parallel to each other, two adjacent ones of the row electrodes being paired, and a plurality of column electrodes extending perpendicularly to the row electrodes at a given intervals wherein a region in which, one pair of row electrodes and one column electrode are crossed and spaced with a distance to each other at an intersection corresponding to one pixel. The method includes the steps of: applying first resetting pulses to all of the row electrodes simultaneously to cause discharges between all of the pairs of row electrodes, each first resetting pulse including a pulse rise or pulse fall time longer than each duration of the sustain pulse for sustaining a discharge emission as a simultaneous resetting step; applying a second resetting pulse to one of the pair of row electrodes to cause discharge therebetween immediately after applying the first resetting pulse to the one of the pair of row electrodes; applying a scan pulse to every pair of row electrodes and simultaneously applying a pixel data pulse to every column electrode to write pixel data to the associated pixels in accordance with pixel data pulses applied; and applying a series of sustain pulses alternately to one of the row electrode pair and the other thereof to maintain sustain-discharge between the pair of row electrodes.
摘要:
To provide a raw material for high oxygen chromium targets containing oxygen in a form capable of effectively preventing the dust ejection phenomenon. A raw material for high oxygen chromium targets comprising chromium crystalline particles dispersed in metallic chromium wherein at least a portion of the surface of all the crystals constituting the oxide crystalline particles is in contact with the matrix of the metallic chromium. A method of producing a raw material for high oxygen chromium targets comprising chromium oxide crystalline particles dispersed in metallic chromium characterized by heat-treating metallic chromium containing a solid solution of oxygen or oxide particles as a starting material, and precipitating or crystal-growing the oxygen or oxide particles as chromium oxide crystalline particles having a particle size of 0.1 to 100 .mu.m, thereby obtaining a raw material for chromium targets.
摘要:
A method for easily fabricating a thin-film transistor device which has a high reliability. A thin-film transistor is formed on a substrate, the transistor including a first conducting layer deposited on the substrate, a gate insulating layer formed on the first conducting layer, a semiconductor layer deposited on the gate insulating layer, and source and drain electrodes on the semiconductor layer. A multi-layer wiring section is provided adjacent the thin-film transistor, including a first conducting wiring layer formed on the substrate, wiring insulating layer formed on the first conducting wiring layer, and a second conducting wiring layer deposited on the wiring insulating layer and contacting the first conducting wiring layer as well as a portion of the thin-film transistor. The gate insulating layer and the wiring insulating layer are made of the same inorganic material and are of the same thickness.
摘要:
High-purity metallic chromium is produced by a method of initially preparing a mixture of chromium oxide, aluminum, carbon and an easily sulfidable metallic powder, and subsequently providing a thermite-reaction with the mixture to produce thermite-crude metallic chromium and a solid solution of carbon and easily sulfidable metal. Residual impurities in the thermite-crude metallic chromium are subsequently removed by heat treating the crude metallic chromium. This method produces high-purity metallic chromium advantageous for preparing corrosion and heat resistant chromium-containing alloys.
摘要:
A color picture tube apparatus comprises a color picture tube including an envelope having a phosphor screen excited by a plurality of electron beams, and deflection means generating horizontal deflection field and barrel type vertical deflection field for the beams, including non-linear magnetic field correction means generating an additional pin-cushion type magnetic field in the vertical field to have preferably convergence characteristics such that vertical direction coma errors can be appropriately corrected throughout every portion of the vertical axis on the screen, whereby high-definition color images can be obtained thereon.
摘要:
A method and the apparatus for inspecting the unit pattern arrangements on a photomask to determine relative shear between the unit patterns where each unit pattern has the same shape and size and is printed repeatedly at equal intervals on the photomask. Shear-detecting-patterns are provided on each unit pattern. Adjacent shear-detecting-patterns on adjacent unit patterns are designated as combined patterns. The combined patterns arranged in the same directions make a group. To detect an irregular shear, a standard pattern is designated from the combined patterns in a group and comparison is made between each combined pattern in the group and the standard pattern. An optical image of each combined pattern in a group is and converted into electric signals. The electrical signals for the standard pattern and for the other combined patters are stored a memory. The two sets of signals are read out and compared to provide a shear difference between the patterns. The difference is determined by counting the number of occupied or unoccupied memory locations in both the standard and the other images. The difference in count produces the shear difference. The shear difference is compared with a or tolerance level and it is determined whether the combined pattern arrangement in the group is correct based on the comparison.By repeating the comparison in other groups, it can be determined whether the unit pattern arrangement is correct.