摘要:
In one embodiment of the present invention, an object of the invention is to provide a wireless communication-improving sheet member capable of increasing a possible communication distance of an IC tag for wireless communication, a wireless IC tag, an antenna, and a wireless communication system. A first spacer includes an arrangement face on which on which the wireless IC tag is disposed without a wired connection, and an auxiliary antenna is disposed on the first spacer on an opposite side to the arrangement face, the auxiliary antenna resonating with electromagnetic waves used in the wireless communication. The auxiliary antenna includes a first conductor layer as a resonant layer and a second spacer. The second spacer is disposed on an opposite side to the first spacer with the first conductor layer interposed therebetween. A discontinuous area is disposed in the first conductor layer of the auxiliary antenna. Thus, it is possible to not only eliminate influence of a communication-jamming member, but also increase received electrical power of a wireless IC tag (antenna), and ensure a long communication distance.
摘要:
A curable fluoropolyether coating composition comprises (A) a linear fluoropolyether compound having at least two isopropenoxysilyl radicals and a perfluoropolyether structure, (B) an amino-containing carbon-functional silane, (C) an epoxy-containing carbon-functional silane, and (D) a curing catalyst. The composition is fully adherent to silicone rubber and cures into a product having solvent resistance, chemical resistance, weather resistance, water repellency, oil repellency, heat resistance, and low moisture permeability.
摘要:
An ultrasonic probe includes piezoelectric elements each including grooves parallel to each other and arrayed in a direction substantially parallel to the grooves, and a mixed member which is to fill the grooves and obtained by mixing in a nonconductive resin member a nonconductive granular substance with a coefficient of thermal expansion of not more than substantially 10−5 K−1.
摘要:
Provided is a spread spectrum communication system in which the data rate can be varied through a relatively simple constitution. A slave station estimates the distance to a master station by using the I and Q signals generated by carrier demodulation, selects the code of a code length associated with the estimated distance from the previously held codes, performs spreading/despreading using the same, and performs transmission/reception. The master station performs spreading/despreading using a code having the same code length as that of the code selected by the slave station.
摘要:
An electromagnetic interference suppressor of substantially unpressurized sheet form is obtained by applying and drying a magnetic paint, and comprises 30 to 80% by volume of soft magnetic powder and 20 to 70% by volume of a binder. The binder is an elastomer or a resin that a glass transition point and/or a softening point is 50° C. or more and a storage modulus (E′) is 107 Pa (JIS K 7244-1) or more in a state containing neither solvent nor filler at room temperature. This electromagnetic interference suppressor exerts a superior electromagnetic interference suppressing effect.
摘要翻译:通过施加和干燥磁性涂料获得基本上未加压片材的电磁干扰抑制剂,并且包含30至80体积%的软磁性粉末和20至70体积%的粘合剂。 粘合剂是含有玻璃化转变点和/或软化点为50℃以上的弹性体或树脂,储存模量(E')为107Pa以上的状态(JIS K 7244-1)以下 在室温下既不溶剂也不填充填料。 该电磁干扰抑制器具有优异的电磁干扰抑制效果。
摘要:
A bond between fluoroelastomer and polyamide resin is established by applying a silane-based primer composition to a surface of polyamide resin, heat treating at 100-200° C., applying a liquid fluoroelastomer composition to the primer coat at room temperature to 100° C., and heat curing at 100-200° C. for bonding the fluoroelastomer to the polyamide resin. The bond between fluoroelastomer and polyamide resin is maintained over a long period of time even in transmission oils.
摘要:
A conductive pattern basically has a substantially polygonal outline shape which is a polygon and can have a high peak value of the electromagnetic wave absorption amount as compared to a case when the conductive pattern has a circular outline shape. Thus, the conductive pattern is basically a polygon and at least one corner portion is shaped in curve. This reduces or even minimizes the shift of the frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave. Accordingly, in at least one embodiment, it is possible to realize an electromagnetic absorber having an excellent electromagnetic wave absorption characteristic exhibiting a high peak value of the absorption amount of the electromagnetic wave and a small shift of frequency at which the absorption amount becomes a peak value by the polarization direction of the electromagnetic wave.
摘要:
Provided is a fast-curing reactive hot-melt resin composition and an adhesive, using a resin having a silicon-containing functional group.The reactive hot-melt resin composition contains a curable resin having a hydrolytic silyl group in the molecule and at least one boron compound selected from the group consisting of boron halides and boron halide complexes. The reactive hot-melt adhesive is composed of the resin composition.
摘要:
A thin, light and soft electromagnetic wave absorber is disclosed exhibiting an excellent workability. The first conductor element group of a first conductor element layer consists of aligned cross conductor elements and square conductor elements in regions surrounded by cross conductor elements. A radio wave incident from the first conductor element layer side is received by each element, internally subjected to multiple reflection and then absorbed by a first loss material layer. Since the first conductor element group is realized by the cross conductor elements and the square conductor elements, receiving effect is enhanced and the radio wave can be collected with a high collection efficiency.