摘要:
A crosslinkable fluororubber composition comprising (A) a polymer of the formula: Z-(Rf-Q)n—Rf-Z wherein n is an integer of at least 1, Rf is a divalent perfluoroalkylene or perfluorooxyalkylene radical, Q is a divalent organic radical, and Z is a monovalent organic radical, having a viscosity of at least 1,000 Pa·s at 25° C., (B) a reinforcing filler, and (C) a peroxide crosslinking agent is effectively roll milled and experiences minimal changes of viscosity after milling. Molded parts can be produced on a mass scale.
摘要翻译:一种可交联氟橡胶组合物,其包含(A)下式的聚合物:Z-(R f -Q)n -R f-Z其中n是至少为1的整数,R f是二价全氟亚烷基或全氟氧化烯 自由基,Q为二价有机基团,Z为单价有机基团,其在25℃下的粘度至少为1,000Pa.s,(B)增强填料,(C)过氧化物交联剂有效地 辊磨,经过磨碎后粘度变化最小。 模制件可以大规模生产。
摘要:
A duplexer includes a ladder filter and a multimode filter that are formed on the same surface of a predetermined substrate. In this duplexer, a first comb-like electrode of the ladder filter and a second comb-like electrode of the multimode filter have the same layer structure with the same film thickness. The first comb-like electrode and the second comb-like electrode are formed with single-layer films mainly containing aluminum. The relationship among the film thickness h of the first comb-like electrode and the second comb-like electrode, the center frequency f1 of the frequency band of the ladder filter, and the center frequency f2 of the frequency band of the multimode filter, is expressed as: 300≦h×f1≦480 300≦h×f2≦430.
摘要:
A camera has a power switching processor for switching on and off the power supply, a mode-setting processor for setting a selected mode among a plurality of mode, and a plurality of buttons, each corresponding to one mode. When one of the buttons is pushed in a state where the power supply is off, the power switching processor switches the power supply on, and the mode-setting processor sets the selected mode corresponding to the pushed button. When one of the buttons is pushed in a state where the power supply is on, the mode-setting processor changes the selected mode to the mode corresponding to the pushed button. Further, when a specific operation, carried out by pushing at least one of the buttons, which is different from an operation or changing the selected mode, is performed, the power switching processor switches the power supply off.
摘要:
A disk device realizing reducing in size and number of parts, prevention of damage to disks, shortening operation time for plurality of operations, improved vibration resistance and less expensive manufacturing cost is provided. The disk device capable of storing a plurality of disks includes an operation setting means to actuate the disk holding means according to an operation mode of the disk, and an operation mode switching means to switch the operation mode of the operation setting means based on contents of disk operation.
摘要:
A primer composition comprises (a) a fluoroalkylene or fluoropolyether compound having at least one alkenyl radical and at least one hydrolyzable silyl radical, (b) an organic titanic acid ester, (c) an organic tin compound, and (d) a silane compound. The primer composition is fully adherent to various substrates of metals, glass, ceramics, cement, mortar, carbon, and plastics, and is particularly suited for use with a thermosetting elastomer composition based on a polymer having at least two alkenyl radicals and a perfluoropolyether structure in its backbone.
摘要:
A surface acoustic wave element includes surface acoustic wave (SAW) resonators arranged in a ladder formation on a piezoelectric substrate. A resonance frequency fS1 of a series-arm resonator of a first stage viewed from an input side of the surface acoustic wave element and an average resonance frequency fSav of all of remaining series-arm SAW resonators satisfy 1.00fSav>fS1≧0.99fSav.
摘要翻译:表面声波元件包括以压电基片上的梯子形式布置的表面声波(SAW)谐振器。 从表面声波元件的输入侧观察的第一级的串联臂谐振器的谐振频率f S1 S1和所有的平均谐振频率f S Sav 剩余的串联臂式SAW谐振器满足1.00f≤Sm SUB> = 0.99f Sav。
摘要:
A write power determining method for an optical disk drive is provided which can determine optimum write power information of an optical disk during the high-speed rotation of the disk. The write power determining method comprises the steps of: obtaining push-pull signal amplitude at two positions in a radial direction of an optical disk before writing; on the basis of the obtained push-pull signal amplitude, determining a linearization value of optimum write power associated with radial positions over the whole writing area of the disk; and adopting the determined result as optimum write power information associated with the radial positions of the disk.
摘要:
This invention relates to a surface acoustic wave device and a production process thereof. An electrode is formed by alternately laminating a film of an aluminum alloy containing at least copper added thereto and a copper film on a piezoelectric substrate. While the particle size of the multi-layered electrode materials in kept small, the occurrence of voids in the film is prevented and life time of the surface acoustic wave device is elongated.
摘要:
A surface acoustic wave resonator including at least one interdigital transducer formed on a piezoelectric substrate, wherein the at least one interdigital transducer includes a predetermined number of interdigitated electrode fingers, at least two electrode fingers among the interdigitated electrode fingers are withdrawn, and the positions of the withdrawal electrode fingers are aperiodic.