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    • 2. 发明专利
    • Method for recovering solid fine particles
    • 回收固体微粒的方法
    • JP2013066871A
    • 2013-04-18
    • JP2011208967
    • 2011-09-26
    • Shin-Etsu Chemical Co Ltd信越化学工業株式会社Shinano Denki Seiren Kk信濃電気製錬株式会社
    • KUBOTA YOSHIHIROHIGUCHI TOMOO
    • B03B7/00B01D21/01B03B5/28C01B31/36C02F1/56
    • PROBLEM TO BE SOLVED: To provide a method for not only separating and recovering solid fine particles with a comparatively large diameter from a liquid containing the solid fine particles of SiC or Si but also efficiently solid-liquid separating ultrafine solid fine particles having a particle diameter smaller than the solid fine particles to recover all the solid fine particles.SOLUTION: The method for recovering solid fine particles of Sic and/or Si includes: a first step of separating and recovering the solid fine particles with the comparatively large diameter in the solid fine particles from the liquid containing the solid fine particles of SiC or Si by centrifugation or/and liquid cyclone to discharge a liquid in which the solid fine particles with the comparatively large diameter remain; and a second step of adding organic flocculant to a discharged liquid in the first step to recover aggregates by centrifugally separating or filtering a liquid containing the aggregates formed by coagulating the solid fine particles with the comparatively large diameter.
    • 要解决的问题:提供一种不仅从含有SiC或Si的固体微粒的液体中分离和回收具有较大直径的固体微粒的方法,而且还有效地固溶液体分离超细固体微粒, 粒径小于固体微粒以回收所有的固体微粒。 解决方案:用于回收Sic和/或Si的固体微粒的方法包括:从含有固体微粒的液体的固体微粒中分离和回收具有较大直径的固体微粒的第一步骤 SiC或Si离心或/和液体旋风分离器以排出其中具有较大直径的固体细颗粒残留的液体; 以及在第一步骤中将有机絮凝剂添加到排出液体中的第二步骤,通过离心分离或过滤含有通过凝固具有较大直径的固体微粒形成的聚集体的液体来回收聚集体。 版权所有(C)2013,JPO&INPIT
    • 7. 发明专利
    • Method for producing silicon carbide powder
    • 生产碳化硅粉的方法
    • JP2014047105A
    • 2014-03-17
    • JP2012191605
    • 2012-08-31
    • Shinano Denki Seiren Kk信濃電気製錬株式会社
    • KUBOTA YOSHIHIROMOCHIZUKI MASAHIRO
    • C01B31/36
    • C01B31/36C01B32/956
    • PROBLEM TO BE SOLVED: To provide a method for producing a silicon carbide powder, which achieves regeneration and utilization of a silicon carbide powder by producing a powder composed of only silicon carbide while upsizing fine powders or superfine powders of silicon carbide and silicon or a mixed fine powder of them, that have hitherto been hard to use and regarded unnecessary, to a size capable of being used.SOLUTION: The method for producing a silicon carbide powder comprises adding a B-C-based additive in addition to silicon oxide and carbon to a fine silicon carbide powder and silicon power to further upsize the silicon carbide powder, and comprises a step of continuously heating a mixture composed of a composition mainly containing the fine silicon carbide powder and/or silicon powder, silicon oxide and/or carbon powder, and the B-C-based additive at a temperature higher than 1850°C and less than 2400°C in a non-oxidizing atmosphere to react the mixture.
    • 要解决的问题:提供一种生产碳化硅粉末的方法,其通过仅仅生产由碳化硅组成的粉末,同时增大碳化硅和硅的微细粉末或超细粉末或混合物来实现碳化硅粉末的再生和利用 迄今为止难以使用和被认为是不必要的细粉末可以使用能够使用的尺寸。解决方案:制造碳化硅粉末的方法包括将除了氧化硅和碳之外的基于BC的添加剂加入到 精细的碳化硅粉末和硅粉末,以进一步增大碳化硅粉末的尺寸,并且包括连续加热由主要含有微细碳化硅粉末和/或硅粉末,二氧化硅和/或碳粉末的组合物组成的混合物和 BC基添加剂在非氧化性气氛中在高于1850℃且小于2400℃的温度下反应混合物。
    • 10. 发明专利
    • Grinding tool for adjusting surface of surface plate and surface adjusting method
    • 用于调整表面表面和表面调整方法的研磨工具
    • JP2007069323A
    • 2007-03-22
    • JP2005260526
    • 2005-09-08
    • Shinano Denki Seiren Kk信濃電気製錬株式会社
    • YASUOKA KAIKAZAMA KENICHITSUNETANI AYUMISATO SHUNJI
    • B24B53/12B24B53/017B24D3/32H01L21/304
    • B24B53/017B24B37/08B24B53/013B24D3/32
    • PROBLEM TO BE SOLVED: To provide a grinding tool for adjusting the surface of a surface plate capable of increasing a free abrasive grain holding force in the surface plate to improve a grinding force and imparting such the surface state of the surface plate as to provide a stable constant grinding force immediately after adjustment to the surface plate by imparting a uniform rough surface to the surface plate. SOLUTION: This grinding tool adjusts the surface of the grinding surface plate in a grinding device for grinding a grinding workpiece by disposing a carrier for the grinding workpiece having a hole for holding the grinding workpiece on the grinding surface plate, holding the grinding workpiece in the hole of the carrier, rotating each of the grinding surface plate and the carrier and supplying a free abrasive grain to the grinding surface plate. The grinding tool is made of a synthetic resin elastic grinding tool having a Rockwell hardness (HRS) of -30 to -100. As a result, the grinding workpiece such as a silicon wafer and synthetic quartz glass can be efficiently polished, and a grinding time can be shortened to reduce grinding cost. The variation of the roughness of the surface of the grinding workpiece is small and a polished product of stable quality can be obtained. COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种用于调节表面板的表面的研磨工具,其能够增加表面板中的自由磨粒保持力,以提高研磨力,并将表面板的表面状态赋予 通过给表面板赋予均匀的粗糙表面,在调整到表面板之后立即提供稳定的恒定研磨力。 解决方案:该研磨工具通过在研磨工件上设置用于将研磨工件保持在研磨面板上的孔的研磨工件的载体上,研磨研磨工件的研磨装置来调整研磨面板的表面,保持研磨 工件在载体的孔中,使研磨表面板和载体各自旋转,并将磨料颗粒提供给研磨表面板。 该研磨工具由洛氏硬度(HRS)为-30至-100的合成树脂弹性研磨工具制成。 结果,可以有效地研磨诸如硅晶片和合成石英玻璃的研磨工件,并且可以缩短研磨时间以降低研磨成本。 研磨工件的表面的粗糙度的变化小,可以获得质量稳定的抛光产品。 版权所有(C)2007,JPO&INPIT