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    • 1. 发明专利
    • Metallic glass compact and method for manufacturing the same
    • 金属玻璃紧固件及其制造方法
    • JP2010138439A
    • 2010-06-24
    • JP2008314969
    • 2008-12-10
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUSHITA KAINYASUDA YOSHITERUYAMAGUCHI TAKUO
    • C22C33/02B22F1/02B22F3/00C22C45/02H01F1/153H01F1/24H01F41/02H02K1/02H02K15/12
    • PROBLEM TO BE SOLVED: To provide a method for manufacturing a metallic glass compact which constitutes a powder magnetic core and can enhance the strength. SOLUTION: The method for manufacturing the metallic glass compact includes the steps of: heating the substrate particles each containing metallic glass as a main constituent while pressurizing them, and sintering a particulates body of the substrate particles. The sintering step can be divided into two stages. The first stage includes pressurizing the substrate particles so that the density of the particulates body becomes less than 90% of true density while reducing a ratio of voids among the substrate particles which constitute the particulates body, when heating the substrate particles to a temperature lower than the glass transition temperature of the metallic glass. Thereby, the density of the particulates body is enhanced. The subsequent second stage includes pressurizing the substrate particles under the condition that a distortion-varying rate (%/°C) of the particulates body with respect to the unit temperature is larger than that in the first stage, while further heating the particulates body in a range of the Tg or higher but lower than the Tx of the metallic glass. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:提供一种制造构成粉末磁芯并可提高强度的金属玻璃压块的方法。 解决方案:用于制造金属玻璃压块的方法包括以下步骤:加热每个包含金属玻璃作为主要成分的基底颗粒,同时对其加压,并烧结基底颗粒的微粒体。 烧结步骤可分为两个阶段。 第一阶段包括对基材颗粒进行加压,使得当将基体颗粒加热至低于(或)的温度时,颗粒体的密度变得小于真密度的90%,同时减小构成颗粒体的基材颗粒之间的空隙比) 金属玻璃的玻璃化转变温度。 由此,能够提高微粒体的密度。 随后的第二阶段包括在微粒体相对于单元温度的变形变化率(%/℃)大于第一阶段的变形率(%/℃)的情况下,同时将微粒体进一步加热的条件下对基材颗粒进行加压 Tg或更高但低于金属玻璃的Tx的范围。 版权所有(C)2010,JPO&INPIT
    • 2. 发明专利
    • Molded product of metal glass, and method of producing the same
    • 金属玻璃的模制产品及其生产方法
    • JP2010138438A
    • 2010-06-24
    • JP2008314967
    • 2008-12-10
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUSHITA KAINYASUDA YOSHITERUYAMAGUCHI TAKUO
    • B22F3/00B22F1/02B22F3/10H01F1/24H02K1/02H02K15/02
    • PROBLEM TO BE SOLVED: To provide a method of producing a metal glass formed body which composes a powder magnetic core, and whose strength can be improved.
      SOLUTION: The method is used for producing the metal glass formed body composed of: a metal glass; an insulation film composed of an inorganic oxide covering the metal glass; and a mutual diffusion layer present on the grain boundary between the metal glass and the insulation film. The production method includes: a stage where sintering is performed at the glass transition temperature of the metal glass or above and less than the crystallization starting temperature; and a cooling stage where, subsequently to the sintering stage, after cooling is started, during the cooling while lowering temperature, the temperature is held at a constant temperature.
      COPYRIGHT: (C)2010,JPO&INPIT
    • 解决的问题:提供一种制造构成粉末磁芯的金属玻璃成形体的方法,其强度可以得到改善。 解决方案:该方法用于制造金属玻璃成形体,其由金属玻璃构成; 由覆盖金属玻璃的无机氧化物构成的绝缘膜; 以及存在于金属玻璃和绝缘膜之间的晶界上的相互扩散层。 制造方法包括:在金属玻璃的玻璃化转变温度以上且小于结晶起始温度进行烧结的阶段; 以及冷却阶段,在冷却开始之后,在烧结阶段之后,在降温的同时,将温度保持在恒定温度。 版权所有(C)2010,JPO&INPIT
    • 6. 发明专利
    • Powder magnetic core material and method of manufacturing the same
    • 粉末磁芯材料及其制造方法
    • JP2010177271A
    • 2010-08-12
    • JP2009015610
    • 2009-01-27
    • Nissan Motor Co Ltd日産自動車株式会社
    • YAMAGUCHI TAKUOYASUDA YOSHITERU
    • H01F1/24B22F1/02B22F3/00C22C45/02H01F1/153H02K1/02
    • Y02T10/641
    • PROBLEM TO BE SOLVED: To provide a powder magnetic core material which is highly strong, has no decline of resistivity and is applicable to a rotor as well, and a method of manufacturing it. SOLUTION: For the powder magnetic core material and the method of manufacturing it, the powder magnetic core material is composed by solidifying and molding metal glass powder which includes at least one kind of Fe, Ni and Co and whose supercooling temperature region ΔTx (in this case, when a crystallization start temperature is Tx and a glass transition temperature is Tg, ΔTx=Tx-Tg is defined) is 20 to 60K and an insulating coating comprising oxide glass coating the surface of the metal glass powder, which is formed of sol containing Al, Si, Zn, B and Bi, and the insulating coating is coated on the metal glass powder as a continuous body. COPYRIGHT: (C)2010,JPO&INPIT
    • 要解决的问题:为了提供高强度的粉末磁芯材料,并且电阻率没有下降,并且也适用于转子以及其制造方法。 解决方案:对于粉末磁芯材料及其制造方法,粉末磁芯材料通过将包含至少一种Fe,Ni和Co的金属玻璃粉末凝固成型而形成,其过冷却温度区域ΔTx (在这种情况下,当结晶开始温度为Tx且玻璃化转变温度为Tg时,定义ΔTx= Tx-Tg)为20〜60K,包含金属玻璃粉末表面的氧化物玻璃的绝缘涂层为 由含有Al,Si,Zn,B和Bi的溶胶形成,绝缘涂层作为连续体涂覆在金属玻璃粉末上。 版权所有(C)2010,JPO&INPIT
    • 8. 发明专利
    • High speed sliding mechanism and its manufacturing method
    • 高速滑动机构及其制造方法
    • JP2007010051A
    • 2007-01-18
    • JP2005191942
    • 2005-06-30
    • Nissan Motor Co Ltd日産自動車株式会社
    • YAMAGUCHI TAKUOHORI TOSHIO
    • F16H55/06C10M103/02C10N20/00C10N30/06C10N40/02C23C14/06C23C30/00
    • PROBLEM TO BE SOLVED: To provide a high speed sliding mechanism less liable to stick slip and further less in friction coefficient, and to provide its manufacturing method.
      SOLUTION: In the high speed sliding mechanism, a high speed sliding member A which is coated with a DLC containing hydrogen of 10 atom% or less and a high speed sliding member B which has a Ra of 0.2μm or less and a Rsk of 0-4μm slide on the surface of a metal member which has a Ra of 0.005-0.1μm. The hardness of the DLC surface of the high speed sliding member A is 70-90GPa. The high speed sliding member A is coated with the DLC having a hydrogen content of 10 atom% or less in an ion plating method and then subjected to aerolapping treatment to manufacture the high speed sliding mechanism.
      COPYRIGHT: (C)2007,JPO&INPIT
    • 要解决的问题:提供一种不易滑动滑动并且摩擦系数更小的高速滑动机构,并提供其制造方法。 解决方案:在高速滑动机构中,涂覆有含有10原子%以下的氢的DLC的高速滑动部件A和Ra为0.2μm以下的高速滑动部件B和 0-4μm的Rsk在具有0.005-0.1μm的Ra的金属构件的表面上滑动。 高速滑动构件A的DLC表面的硬度为70〜90GPa。 高速滑动部件A在离子镀法中用氢原子数为10原子%以下的DLC涂布,然后进行空气处理,制造高速滑动机构。 版权所有(C)2007,JPO&INPIT
    • 10. 发明专利
    • Highly strong gear and method of manufacturing the same
    • 高强度齿轮及其制造方法
    • JP2006022894A
    • 2006-01-26
    • JP2004201644
    • 2004-07-08
    • Nissan Motor Co Ltd日産自動車株式会社
    • YAMAGUCHI TAKUO
    • F16H55/06F16H55/17
    • PROBLEM TO BE SOLVED: To provide a highly strong gear having a highly tenacious diamond-like carbon film not peeled off even on the tooth faces of a gear used at a high speed reduction ratio and capable of realizing a reduction in friction on the tooth faces.
      SOLUTION: In the tooth faces of a metal gear base material 1, an infinite number of recessed parts 2 with an averaged diameter of 0.1 to 10 μm and an averaged depth of 0.1 to 10 μm are formed in the area A of at least 0.3 to 0.7L from the addendum thereof where an entire engagement length is L. The diamond-like carbon film 3 with a thickness of 1 to 5 μm is formed on the surfaces of the recessed parts, and a carbon layer 4 with a thickness of 10 to 500 nm and containing hydrogen by an amount of 4×10
      22 atms/cm
      3 or more in density of atom number is formed on the diamond-like carbon film 3.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:为了提供具有高度韧性的类金刚石碳膜的高强度齿轮,即使在以高速减速比使用的齿轮的齿面上也不会剥离,并且能够实现摩擦减小 牙齿面。 解决方案:在金属齿轮基材1的齿面中,在区域A中形成平均直径为0.1〜10μm,平均深度为0.1〜10μm的无数个凹部2 在其整个接合长度为L的附件中至少0.3至0.7L。在凹部的表面上形成厚度为1至5μm的类金刚石碳膜3,并且具有厚度的碳层4 在金刚石状碳膜上形成10〜500nm的含有原子数密度的4×10 atm / cm 3以上的氢气 3.版权所有(C)2006,JPO&NCIPI