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    • 4. 发明专利
    • Crystal growth method
    • 水晶生长方法
    • JP2012041200A
    • 2012-03-01
    • JP2010181029
    • 2010-08-12
    • Nippon Telegr & Teleph Corp 日本電信電話株式会社
    • SASAURA MASAHIROKAWAMURA MUNENORIIMAI TADAYUKIYAGI IKUTAKE
    • C30B15/02C30B11/06C30B17/00
    • PROBLEM TO BE SOLVED: To provide a crystal growth method producible of a highly uniform single crystal by preventing a compositional change otherwise occurring during the progress of crystal growth.SOLUTION: A raw material rod 21 of the composition identical with that of a crystal 19 to be grown is brought into contact with the surface of a raw material melt 18 in a crucible 11 placed in a furnace to keep the state of thermal contact between the raw material rod 21 and the raw material melt 18. A supplementary raw material is fed from the raw material rod 21 to the raw material melt 18 at an hourly feed rate equal to the hourly growth amount of the crystal 19 to be grown. The raw material rod 21 is an aggregate of crystal grains of adjusted grain sizes, provided that the grain sizes of the crystal grains are determined so that the crystal grains are molten before they reach the crystal 19 to be grown through the convection of the raw material melt from the raw material rod 21 to the crystal 19 to be grown.
    • 待解决的问题:通过防止在晶体生长过程中另外发生的组成变化来提供可生产高度均匀单晶的晶体生长方法。 解决方案:将与待生长的晶体19相同的组成物的原料棒21与放置在炉中的坩埚11中的原料熔体18的表面接触以保持热状态 原料棒21与原料熔料18之间的接触。辅助原材料以原料棒21的原料料料18以等于待生长的晶体19的小时生长量的小时进料速率进料 。 原料棒21是调整晶粒尺寸的晶粒的聚集体,条件是确定晶粒的晶粒尺寸,使得晶粒在它们到达晶体19之前熔化,以通过原料的对流生长 从原料棒21熔融成晶体19以生长。 版权所有(C)2012,JPO&INPIT
    • 8. 发明专利
    • Method for producing cesium boric acid compound crystal and cesium boric acid compound obtained by the same
    • 生产由其获得的酸式硼酸酯化合物和酸式硼酸酯化合物的方法
    • JP2008050240A
    • 2008-03-06
    • JP2006231389
    • 2006-08-28
    • Osaka Univ国立大学法人大阪大学
    • YOSHIMURA MASASHIMORI YUSUKESASAKI TAKATOMOHISAMINATO NAOTONAGATSUYU IORI
    • C30B29/22C30B17/00
    • PROBLEM TO BE SOLVED: To provide a method for producing a cesium boric acid compound crystal which can remove a light-scattering source and which is useful as a laser element without generating new fluorescence by the irradiation of ultraviolet light. SOLUTION: The cesium boric acid compound crystal is produced by preparing a raw material crystal having light-scattering source in the raw material crystal and Cs resource for supplying a Cs component in an atmosphere and heating the raw material crystal under the atmosphere including Cs component. The Cs resource includes the Cs component, the ratio (mol%) of the Cs component is set greater than the ratio (mol%) of the Cs component in the raw material composition for growing the raw material crystal, and the heating temperature in a heat treatment process is a temperature in which Cs vaporizes from the Cs resource and a temperature lower than that at which a weight decrease in the cesium boric acid compound crystal is generated. COPYRIGHT: (C)2008,JPO&INPIT
    • 解决的问题:提供一种可以除去光散射源并可用作激光元件的铯硼酸化合物晶体的方法,而不会通过紫外线的照射产生新的荧光。 解决方案:硼酸铯化合物晶体是通过在原料晶体中制备具有光散射源的原料晶体和用于在大气中供给Cs成分的Cs资源,并在气氛下加热原料晶体而制备的,包括 Cs组分。 Cs原料包含Cs成分,Cs成分的比率(mol%)设定为大于原料晶体生长用原料组合物中的Cs成分的比(mol%),加热温度 热处理工序是Cs从Cs原料气化而产生的温度低于生成铯硼酸化合物晶体的重量减少的温度。 版权所有(C)2008,JPO&INPIT
    • 10. 发明专利
    • Manufacturing facility for manufacturing silicon carbide single crystal by means of solution method
    • 通过解决方法制造单晶碳化硅的制造设备
    • JP2007126335A
    • 2007-05-24
    • JP2005321260
    • 2005-11-04
    • Toyota Motor Corpトヨタ自動車株式会社
    • TERAJIMA YUKIOSAKAMOTO HIDEMITSU
    • C30B29/36C30B9/00C30B17/00
    • PROBLEM TO BE SOLVED: To provide a manufacturing facility for manufacturing a silicon carbide single crystal which inhibits the production of a silicon carbide polycrystal in a method for manufacturing silicon carbide single crystal by means of a solution method.
      SOLUTION: The manufacturing facility 10 for manufacturing silicon carbide single crystal by means of the solution method comprises a crucible 2 for holding a solution containing silicon and carbon, a heating device 3 for heating the crucible, and a seed crystal holding part 6 for holding a seed crystal 5, wherein, during at least manufacturing the silicon carbide single crystal, a part 2a which is brought into contact with the liquid level of the solution of an internal surface of the crucible has a degree of surface roughness Ra of ≤2.0 μm.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种通过溶液法制造碳化硅单晶的方法制造碳化硅单晶制造碳化硅单晶的制造设备。 解决方案:通过溶液法制造碳化硅单晶的制造设备10包括用于保持含有硅和碳的溶液的坩埚2,用于加热坩埚的加热装置3和晶种保持部6 用于保持晶种5,其中,在至少制造碳化硅单晶期间,与坩埚内表面的溶液的液面接触的部分2a的表面粗糙度Ra为≤ 2.0μm。 版权所有(C)2007,JPO&INPIT