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    • 3. 发明专利
    • WIRE DRAWING METHOD FOR OXIDE TYPE SUPERCONDUCTOR
    • JPH01163911A
    • 1989-06-28
    • JP22460487
    • 1987-09-08
    • SANYO ELECTRIC CO
    • HASUNUMA MASAHIKOTAKEOKA AKIO
    • H01B12/04B28B1/00H01B13/00
    • PURPOSE:To exercise the annealing effect sufficiently and to increase the conductive passage of a wire material by sealing an oxide type superconductor and a substance of sublimation property in a stabilizing material, applying a wiredrawing process to get a wire material, heating the resultant wire material at a temperature higher than the sublimation point of the substance to remove the substance of sublimation property, and sintering it by presenting oxygen to the rooms of the removed substance. CONSTITUTION:Ingots of an oxide type superconductor 1 and ingots of a substance of sublimation property 2, which are covered with a stable material such as copper, are used, and they are filled and sealed in a stabilizing material 3 made of copper. After filling the ingots in a coverage frame 3a of the stabilizing material 3 respectively, a sealing member 3b is welded to seal them. A single core billet 4 manufactured in such a process is extended and wiredrawn 5 to obtain a wire material 6. The wire material 6 is wound in a desired magnet-form, heated at the temperature higher than the sublimation point of the substance of the sublimation property in an electric furnace 7 to remove the substance, and a sintering process is applied by presenting oxygen to the rooms formed by removing the substance. As the substance of the sublimation property, one is selected from iodine and camphor.
    • 4. 发明专利
    • TEMPERATURE SENSOR
    • JPS6459023A
    • 1989-03-06
    • JP21576287
    • 1987-08-28
    • SANYO ELECTRIC CO
    • FUTAKI KAZUYATAKEOKA AKIO
    • G01K7/16
    • PURPOSE:To more exactly measure the temp. to be measured by connecting the other superconductor, which has the superconduction transition end temp. approximate to the superconduction transition initiation temp. of one of two pieces of the superconductors, in series to the one superconductor. CONSTITUTION:The other superconductor 2, which has the superconduction transition end temp. (TCe2) approximate to the superconduction transition initiation temp. (TCO1) of the one superconductor 1, is connected in series to the conductor 1. The temp. difference between the superconduction transition initiation temp. (TCO2) and the superconduction transition end temp. (TCe1) is 50K and an approximately linear characteristic is exhibited in a temp. range. The synthesized electric resistance at the temp. TCO2 is 160mOMEGA. The electric resistance is measured by passing specified current to the series circuit of the conductors 1, 2 from a power supply end 6 and detecting the voltage across the series circuit by a detecting end 7. The temp. to be measured is TK from the above if the electric resistance is RmOMEGA. The temp. to be measured is thereby more exactly measured.
    • 7. 发明专利
    • ELECTROMAGNETIC WAVE DETECTING ELEMENT
    • JPH03249571A
    • 1991-11-07
    • JP4793790
    • 1990-02-28
    • SANYO ELECTRIC CO
    • YOKOO TOSHIAKIIKEMACHI TAKAAKIIENAGA TERUHIKOYOSHISATO MASANOBUTAKEOKA AKIONAKANO SHOICHIKUWANO YUKINORI
    • G01R29/08
    • PURPOSE:To increase the detection output, and also, to improve the S/N by allowing thickness of an electromagnetic wave detecting part in a fine grain ceramic superconducting body to coincide roughly with intrusion length of an electromagnetic wave to the superconducting body. CONSTITUTION:A crystallized glass substrate 1 and a fine grain ceramics superconducting body 2 are integrated mechanically. Accordingly, at the time of ultrasonic working, a distortion at the time of working does not concentrate in a joint part, and minute working can be executed without deteriorating the characteristics. When thickness (t) of an electromagnetic wave detecting part obtained in such a way is increased, an output voltage does not become high in the part exceeding intrusion depth (t) of the electromagnetic wave. On the other hand, an output noise of the electromagnetic wave detecting ele ment appears as the sum of that which is proportional to thickness of the detecting part and that which is not proportional thereto, and as a result, a characteristic of an S/N becomes as shown in the figure. Accordingly, by allowing thickness of the detecting part to coincide roughly with intrusion length, the detecting element whose detection output is large, and also, whose S/N is large is obtained.
    • 10. 发明专利
    • Production of magnetic paint
    • 制作磁性涂料
    • JPS6199931A
    • 1986-05-19
    • JP22081984
    • 1984-10-19
    • Sanyo Electric Co Ltd
    • HASUNUMA MASAHIKOTAKEOKA AKIOHIRANO TOSHIMASA
    • G11B5/842
    • PURPOSE: To disperse highly magnetic powder without the complication of stages and the increase in cost owing to the addition of blank materials by mixing the vacuum-dried magnetic powder into the solvent dissolved therein with a dispersant in an evacuated vessel to wet the magnetic powder with said solvent, adding a binder and additive to the magnetic powder subjected to such stage and mixing and dispersing the same.
      CONSTITUTION: The magnetic powder 7 is vacuum-dried for about 10hr in a vessel 1 under stirring in a high degree of vacuum in order to remove the foam and adsorbed water in the magnetic powder 7. The degree of vacuum in the vessel of a screw mixer is then maintained under ≤100Torr and the solvent dissolved therein with the dispersant is supplied therein through the above-described charging port 6 and is mixed with the magnetic powder 7 under stirring, by which the magnetic powder is made wet with said solvent. The pressure in the above-mentioned vessel 2 is restored to an atmospheric pressure in order to mix the dispersant soln. and to mix the magnetic powder wet with the dispersant with the binder resin, etc. The binder resin and various additives are added thereto and are mixed under stirring. The magnetic powder mixed with the binder resin and various additives is further mixed by using a ball mill or sand mill, by which the magnetic powder is dispersed.
      COPYRIGHT: (C)1986,JPO&Japio
    • 目的:通过将真空干燥的磁粉与分散剂一起在真空干燥的磁性粉末中混合,将真空干燥后的磁性粉末与分散剂混合在真空容器内,使磁性粉末与 所述溶剂,向经过这种阶段的磁粉中加入粘合剂和添加剂并将其混合并分散。 构成:在高真空度的搅拌下,在容器1中将磁性粉末7真空干燥约10小时,以除去泡沫和吸附在磁粉7中的水。螺杆容器中的真空度 然后将混合器保持在<= 100乇下,用分散剂溶解于其中的溶剂通过上述装料口6供入其中,并在搅拌下与磁性粉末7混合,由此使磁性粉末用所述溶剂湿润。 将上述容器2中的压力恢复到大气压力以混合分散剂溶剂。 并将粉末状的分散剂与粘合剂树脂等混合。向其中加入粘合剂树脂和各种添加剂,并在搅拌下混合。 与粘合剂树脂和各种添加剂混合的磁性粉末通过使用分散磁粉的球磨机或砂磨机进一步混合。