摘要:
This invention provides a solid polymer ion exchange membrane/electrode assembly, or an electrode/solid polymer ion exchange membrane /electrode assembly, for an electrochemical cell, which consists of planar layers of materials intimately joined together to form a unitary structure. The layers are joined together by solid polymer ion exchange resin present in at least one of each pair of adjacent layers. The unitary assembly can be used in an electrochemical cell such as a battery, electrolytic reactor, or fuel cell.
摘要:
A polishing slurry is formed of a silica-dispersed solution obtained by dispersing, in an aqueous solvent, a fumed silica having an average primary particle size of from 5 to 30 nm, the silica-dispersed solution exhibiting a light scattering index (n) of from 3 to 6 at a silica concentration of 1.5% by weight, and the fumed silica dispersed therein having an average secondary particle size of from 30 to 100 nm on the weight basis. The polishing slurry is produced by pulverizing, using a high-pressure homogenizer, a silica-dispersed solution obtained by dispersing a fumed silica in an aqueous solvent, so that the fumed silica possesses an average secondary particle size of from 30 to 100 nm on the weight basis. The polishing slurry is used for polishing semiconductor wafers and inter-layer dielectric in an IC process.
摘要:
Proposed is a novel electroconductive composite plastic resin sheet consisting of an insulating base sheet of a plastic resin and an electroconductive coating layer formed on at least one of the surfaces of the base sheet, which is suitable as a material of a carrier tape used in transportation, storage and mounting works of chip-formed electronic devices such as ICs. The electroconductive composite plastic resin sheet of the invention characteristically consists of: (A) a base sheet having a thickness in the range from 100 to 1000 .mu.m formed from an electrically insulating polystyrene-based plastic resin; and (B) a coating layer having a thickness in the range from 0.1 to 30 .mu.m formed on at least one surface of the base sheet from an electroconductive coating composition comprising: (a) 100 parts by weight of an acrylic urethane-based resin as the vehicle of the coating composition to form the matrix phase of the coating layer; and (b) from 15 to 35 parts by weight of electroconductive particles having an average particle diameter in the range from 0.05 to 1.0 .mu.m uniformly dispersed in the vehicle resin, the surface of the coating layer having a surface resistivity in the range from 10.sup.4 to 10.sup.8 ohm at 23.degree. C.
摘要:
The present invention is directed to a liquid metering and coating device comprising a perforated hollow member; a liquid-absorbent porous material within said hollow member; at least one shaft component which seals the liquid-absorbent porous material within the hollow member, a means for air passage; a liquid diffusion layer in contact with the perimeter of the perforated hollow member; and a liquid permeation regulating layer in contact with the perimeter of the liquid diffusion layer. The liquid metering and coating device can satisfactorily apply a liquid to a surface with exceptional accuracy, uniformity and durability.
摘要:
A focus control device of the type including a first sensor circuit arranged to detect the degree of manipulation of a focus operating circuit to produce a lens displacement command signal, a second sensor circuit arranged to detect the current position of a focusing lens to produce a signal indicative of a current lens position, and a comparator arranged to compare the output signals of the first and second sensor circuit to produce a servo control signal according to a difference between the two sensor signals thereby to control the operation of the focusing lens, characterized in that the focus control device comprises an output signal characteristics converting circuit adapted to convert the characteristics of the servo control signal into compliance with a characteristics curve varying with high- and low-pitch inclinations toward the nearest subject distance and infinite ends of the focusing range, respectively.
摘要:
An elastic fixing roll having an elastic, compliant body material and release surface material is disclosed. The body material comprises porous silicone rubber, fluorosilicone rubber, or fluorocarbon rubber foam, or a porous synthetic polymer foam reinforced with silicone rubber, fluorosilicone rubber, or fluorocarbon rubber. The release surface material is formed of porous polytetrafluoroethylene film containing silicone rubber, fluorosilicone rubber, or fluorocarbon rubber and is bonded to the body material by a non-continuous layer of adhesive. The elastic fixing roll has good strength, resilience, and heat resistance and is suitable for use in hot toner fixing assemblies of copying machines and printing machines
摘要:
A rendering system for processing rendering command packets includes a plurality of prefetch circuits which are supplied with a rendering command packet including a rendering command and a parameter and prefetch a next rendering command packet during processing of the former rendering command packet, and a plurality of primitive creating circuits coupled in parallel, each of the primitive creating circuits being coupled to associated one of the prefetch circuits to start processing the next rendering command packet when completing the processing of the former rendering command packet.
摘要:
A fixing unit has a fixing roller and an endless belt. When a recording sheet bearing a toner image not yet fixed passes between the fixing roller and the endless belt, the fixing unit fixes the toner image onto the recording sheet in the nip area. The endless belt is a film-like belt consisting of a base film and a layer on the base film, the layer being made of a composite material containing porous material and elastomer. A fixing unit is thus provided which is free from the problems of image offset and lifetime shortening, and can realize the increase of fixing speed and/or size reduction.
摘要:
Sensors such as switches are arranged to detect the insertion of a key into a key cylinder, the rotation of the key to one or more operative positions, the position of a transmission shift level, the depressions of a brake pedal and the like, and to produce signals which are processed by logic circuits in a manner to determine the energization mode and timing of the solenoid or the like motor arrangement in a manner which locks or releases a safety button which must be pressed before the steering column of a vehicle can be locked. The mechanism which performs the locking operation is mounted on the exterior of the housing in which the key cylinder is disposed, thus facilitating assembly.
摘要:
A method of cleaning the bottom of a feeding channel supplied fresh water to be fed to fish such as fry of salmon and trout is disclosed in which a baffle means for preventing the flow of water in the feeding channel is maintained to the orientation such as to extend upwardly from the height position spaced apart upwardly from the bottom to block the flow of water in the channel while the baffle means is moved in the channel from the upstream side to the downstream side, thereby collecting the deposit in the channel toward the downstream side of the channel due to the flow of water passing through the gap between the bottom and a lower edge of the baffle means. An apparatus for cleaning the bottom of a feeding channel comprises a baffle means disposed in the feeding channel and movable from the upstream side to the downstream side so as to block the flow of water in the channel which is supplied with fresh water thereto and a means for maintaining the baffle means to the orientation such as to extend upwardly from the height position spaced apart upwardly from the bottom to block the water flow in the channel while the baffle means is moved in the channel.