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    • 12. 发明授权
    • Method for production of silicon
    • 生产硅的方法
    • US07455822B2
    • 2008-11-25
    • US10490584
    • 2003-07-22
    • Jiro KondoMasaki OkajimaShinji TokumaruHitoshi Dohnomae
    • Jiro KondoMasaki OkajimaShinji TokumaruHitoshi Dohnomae
    • C01B33/02
    • C01B33/021
    • A process for production of Si, characterized by adding an oxide, hydroxide, carbonate or fluoride of an alkali metal element, or an oxide, hydroxide, carbonate or fluoride of an alkaline earth metal element, or two or more of such compounds, to solid SiO in a total molar amount of from 1/20 to 1000 times with respect to the moles of solid SiO, heating the mixture at between the melting point of Si and 2000° C. to induce a chemical reaction which produces Si and separating and recovering the Si from the reaction by-product, for the purpose of inexpensively and efficiently producing Si from various forms of solid SiO with no industrial value produced from Si production steps and the like.
    • 一种制备Si的方法,其特征在于将碱金属元素的氧化物,氢氧化物,碳酸盐或氟化物,或碱土金属元素的氧化物,氢氧化物,碳酸盐或氟化物,或两种或更多种这些化合物加入到固体 SiO的总摩尔量相对于固体SiO的摩尔数为1/20至1000倍,在Si的熔点和2000℃之间加热混合物以引起产生Si的化学反应并分离和回收 来自反应副产物的Si,目的是从Si生产步骤等产生的没有工业价值的各种形式的固体SiO低成本和有效地生产Si。
    • 13. 发明授权
    • Electromagnetic valve
    • 电磁阀
    • US07114472B2
    • 2006-10-03
    • US11157904
    • 2005-06-22
    • Jiro Kondo
    • Jiro Kondo
    • F01L1/34
    • F16K31/0613F01L2001/3443F01L2001/34433
    • A shaft is press-fit into the valve member or the plunger of an electromagnetic valve to transmit the axial movement of the plunger to the valve member. A diameter reducing mechanism is provided for reducing the diameter of at least the press-fit portion of the shaft so that the diameter of the shaft is decreased by a press-fitting force applied to the shaft by the valve member and/or plunger. Deformation due to the press-fitting process is absorbed by the shaft, so deformation of the valve member and/or plunger is inhibited. Accordingly, it is unnecessary to give a large margin to a plunger side air gap, and magnetic efficiency can be improved. Also, two chambers on both axial sides of the plunger can communicate with each other through a clearance provided by the C-shaped cross-section, an inner hole and a penetration hole of the shaft. Therefore, it is unnecessary to form any separate groove or hole in the plunger for respiration.
    • 轴被压配合到阀构件或电磁阀的柱塞中以将柱塞的轴向运动传递到阀构件。 提供了一种直径减小机构,用于减小至少轴的压配部分的直径,使得通过由阀构件和/或柱塞施加到轴的压配合力来减小轴的直径。 由于压入工艺引起的变形被轴吸收,因此阀构件和/或柱塞的变形被抑制。 因此,不需要对柱塞侧气隙给予较大的余量,并且可以提高磁效率。 此外,柱塞的两个轴向侧面上的两个室可以通过由C形横截面,轴的内孔和穿透孔提供的间隙彼此连通。 因此,不需要在柱塞中形成用于呼吸的任何单独的凹槽或孔。
    • 17. 发明授权
    • Process for producing a silicon carbide powder
    • 碳化硅粉末的制造方法
    • US4832929A
    • 1989-05-23
    • US6688
    • 1987-01-23
    • Goro SaikiJiro Kondo
    • Goro SaikiJiro Kondo
    • C01B31/36C04B35/565C04B35/575
    • C04B35/565C01B31/36C04B35/575C01P2006/10C01P2006/80C01P2006/90
    • Silicon carbide particles are produced by reacting a gaseous silicon compound or granular silicon with a carbon compound at a high temperature. In the reaction, the amount of free carbon content in the resultant silicon carbide particles can be controlled by monitoring the amount of unsaturated hydrocarbon such as acetylene, as a by-product. Moreover, silicon carbide particles can contain boron dispersed uniformly in the particles by a two step process comprising first reacting a silicon source and a boron source without a carbon source in a first reaction zone, to form boron-containing silicon particles, and second, reacting the resultant particles with a carbon source in a second reaction zone. Further, the above-mentioned monitoring of an unsaturated hydrocarbon by-product allows the obtaining of silicon carbide particles containing no free carbon, and the silicon carbide particles containing boron in the particles but no free carbon may be sintered without the addition of free carbon, to give a dense sinter.
    • 通过在高温下使气态硅化合物或颗粒状硅与碳化合物反应来制造碳化硅颗粒。 在反应中,所得碳化硅颗粒中的游离碳含量可以通过监测作为副产物的不饱和烃如乙炔的量来控制。 此外,碳化硅颗粒可以包含通过两步法在颗粒中均匀分散的硼,其包括在第一反应区中首先使硅源和不含碳源的硼源反应形成含硼硅颗粒,其次,使 在第二反应区中产生具有碳源的颗粒。 此外,上述不饱和烃副产物的监测允许获得不含游离碳的碳化硅颗粒,并且在颗粒中含有硼的碳化硅颗粒但不含游离碳可以不加入游离碳而烧结, 给出一个密集的烧结矿。
    • 20. 发明授权
    • Method for removing boron from silicon
    • 从硅中除去硼的方法
    • US08034151B2
    • 2011-10-11
    • US10591093
    • 2005-03-02
    • Jiro KondoKensuke Okazawa
    • Jiro KondoKensuke Okazawa
    • C21B11/10
    • C01B33/037
    • The present invention provides a method for removal of boron from metal silicon inexpensively and extremely efficiently by a simple method, specifically, heating metal silicon containing boron as an impurity to its melting point to 2200° C. to place it in a molten state, then adding a solid mainly comprised of silicon dioxide and a solid mainly comprised of one or both of a carbonate of an alkali metal or a hydrate of a carbonate of an alkali metal into said molten silicon so as to form a slag and remove the boron in the silicon.
    • 本发明提供了一种通过简单的方法廉价地且极其有效地从金属硅中除去硼的方法,具体地说,将含有硼作为杂质的金属硅加热至其熔点为2200℃以将其置于熔融状态, 将主要由二氧化硅组成的固体和主要由碱金属的碳酸盐或碱金属碳酸盐的水合物中的一种或两者组成的固体加入到所述熔融硅中,以形成炉渣并除去 硅。