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    • 1. 发明授权
    • Exchange spring magnet powder and a method of producing the same
    • 交换弹簧磁铁粉及其制造方法
    • US07344605B2
    • 2008-03-18
    • US11311148
    • 2005-12-20
    • Hideaki OnoNorihisa WakiMunekatsu Shimada
    • Hideaki OnoNorihisa WakiMunekatsu Shimada
    • H01F1/055H01F1/057
    • B82Y25/00C21D6/007C21D2201/03C22C38/005C22C38/10C22C45/02H01F1/0579H01F1/058H01F1/059
    • An anisotropic exchange spring magnet powder complexing a hard magnetic material and a soft magnetic material, wherein a rare earth metal element, a transition metal element, boron and carbon and the like are contained, and the hard magnetic material and soft magnetic material have crystal particle diameters of 150 nm or less. A method of producing an anisotropic exchange spring magnet powder comprises treating a crystalline mother material containing a hard magnetic material and soft magnetic material or the crystalline mother material having amorphous parts, in a continuous process composed of an amorphising process and the following crystallizing process, repeated once or more times. An anisotropic exchange spring magnet is obtained by treatment, in an anisotropy- imparting molding process and a solidification process, of an anisotropic exchange spring magnet powder.
    • 包含硬磁性材料和软磁性材料的各向异性交换弹簧磁铁粉末,其中含有稀土金属元素,过渡金属元素,硼和碳等,并且硬磁性材料和软磁性材料具有晶体颗粒 直径为150nm以下。 制造各向异性交换弹簧磁铁粉末的方法包括:在由非晶化过程和随后的结晶过程组成的连续工艺中处理含有硬磁性材料和软磁性材料的结晶母材或具有无定形部分的结晶母材,重复 一次或多次。 通过在各向异性交换弹簧磁铁粉末的各向异性赋予模制过程和固化过程中进行处理,获得各向异性交换弹簧磁体。
    • 3. 发明授权
    • Gas diffusion electrode and solid polymer electrolyte fuel cell
    • 气体扩散电极和固体聚合物电解质燃料电池
    • US07749639B2
    • 2010-07-06
    • US11571010
    • 2005-06-21
    • Satoru IchikawaMasahiro YamamotoNorihisa Waki
    • Satoru IchikawaMasahiro YamamotoNorihisa Waki
    • H01M4/86H01M8/10
    • H01M8/0239H01M4/8605H01M4/8636H01M4/8657H01M8/0234H01M8/1007
    • A gas diffusion electrode includes: an electrode catalyst layer; microporous layers arranged on the electrode catalyst layer and including at least second and first microporous layers, wherein the second microporous layer disposed on the electrode catalyst layer side is composed to have higher water repellency than the first microporous layer; and an oxidant gas diffusion substrate disposed on the microporous layers and formed of carbon fiber. According to the gas diffusion electrode of the present invention, drainability of generated water from the electrode catalyst layer to the gas diffusion layer and moisture retention and gas diffusibility of the electrode catalyst layer can be enhanced. Moreover, according to a solid polymer electrolyte fuel cell of the present invention, stable power generation characteristics can be obtained even under an operating condition with a wide humidity range and current density range.
    • 气体扩散电极包括:电极催化剂层; 布置在所述电极催化剂层上并且包括至少第二和第一微孔层的微孔层,其中设置在所述电极催化剂层侧上的所述第二微孔层具有比所述第一微孔层更高的拒水性; 以及设置在微孔层上并由碳纤维形成的氧化剂气体扩散基板。 根据本发明的气体扩散电极,可以提高从电极催化剂层到气体扩散层的产生的水的排水性和电极催化剂层的保湿性和气体扩散性。 此外,根据本发明的固体高分子电解质型燃料电池,即使在宽湿度范围和电流密度范围的操作条件下也能获得稳定的发电特性。
    • 5. 发明授权
    • Bulk exchange-spring magnet, device using the same, and method of producing the same
    • 散装交换弹簧磁铁,使用其的装置及其制造方法
    • US06736909B2
    • 2004-05-18
    • US09960972
    • 2001-09-25
    • Norihisa WakiHideaki OnoMunekatsu ShimadaTatsuo Sugiyama
    • Norihisa WakiHideaki OnoMunekatsu ShimadaTatsuo Sugiyama
    • H01F1057
    • B82Y25/00H01F1/0579
    • A bulk exchange-spring magnet 12, a method of producing the same, and a device 20 incorporating the bulk exchange-spring magnet are disclosed. The magnet includes magnet powders 10 having hard and soft phases, and boron and oxygen atoms which cohere in boundary areas 16 between grains 14 of the densified magnet powders 10. In a production method, the magnet powders 10 are compacted so as to incorporate boron and oxygen atoms into the boundary areas 16 and are heated under a compacted state of the magnet powders at varying operating temperatures for a given time period. This results in formation of a highly densified magnet at a lower potential operating temperature for a shorter time period without the grain growth. The device 20 includes the bulk exchange-spring magnet 12 containing the boron and oxygen atoms cohering between the grains of the densified magnet powders.
    • 公开了一种大容量交换弹簧磁体12及其制造方法,以及结合本体交换弹簧磁体的装置20。 磁体包括具有硬相和软相的磁体粉末10,以及与致密磁体粉末10的晶粒14之间的边界区域16中的硼原子和氧原子。在制造方法中,将磁体粉末10压实,从而结合硼和 氧原子进入边界区域16,并在变化的工作温度下在磁体粉末的压实状态下加热给定的时间段。 这导致在更低的电势工作温度下形成高度致密的磁体较短的时间段而没有晶粒生长。 装置20包括体积交换弹簧磁体12,其包含在致密的磁体粉末的颗粒之间粘附的硼和氧原子。
    • 7. 发明申请
    • GAS DIFFUSION LAYER FOR FUEL CELL
    • 燃料电池气体扩散层
    • US20110171563A1
    • 2011-07-14
    • US13120811
    • 2009-09-16
    • Norihisa WakiNagakazu Furuya
    • Norihisa WakiNagakazu Furuya
    • H01M8/04
    • H01M8/0245H01M8/0234H01M8/0239H01M2008/1095
    • A gas diffusion layer for a fuel cell includes a conductive microparticle layer and a base material layer. The conductive microparticle layer is formed with first pores of no less than 0.5 μm and no more than 50 μm and second pores of no less than 0.05 μm and less than 0.5 μm. Pores are also formed in the base material layer. A total volume of the second pores is no less than 50% and less than 100% of a total volume of all of the pores in the conductive microparticle layer. By properly setting a pore size D1 of pores having a maximum volume ratio from among the first pores, water passages are formed in the first pores separately from gas passages formed in the second pores.
    • 燃料电池用气体扩散层包括导电性微粒层和基材层。 导电性微粒层由不小于0.5μm且不大于50μm的第一孔和不小于0.05μm且小于0.5μm的第二孔形成。 孔也形成在基材层中。 第二孔的总体积不小于导电性微粒层中的所有孔的总体积的50%以上且小于100%。 通过适当地设定从第一孔之间具有最大体积比的孔的孔径D1,在第一孔中形成与第二孔中形成的气体通道分开的水通道。
    • 8. 发明申请
    • Gas Diffusion Electrode and Solid Polymer Electrolyte Fuel Cell
    • 气体扩散电极和固体聚合物电解质燃料电池
    • US20080299430A1
    • 2008-12-04
    • US11571010
    • 2005-06-21
    • Satoru IchikawaMasahiro YamamotoNorihisa Waki
    • Satoru IchikawaMasahiro YamamotoNorihisa Waki
    • H01M8/10H01M4/86
    • H01M8/0239H01M4/8605H01M4/8636H01M4/8657H01M8/0234H01M8/1007
    • A gas diffusion electrode includes: an electrode catalyst layer 13; microporous layers 11 and 12 arranged on the electrode catalyst layer 13 and including at least two layers which are second and first microporous layers 12 and 11 formed of materials having different water repellencies, wherein the second microporous layer 12 disposed on the electrode catalyst layer 13 side is composed to have higher water repellency than the first microporous layer 11; and an oxidant gas diffusion substrate 10 disposed on the microporous layers 11 and 12 and formed of carbon fiber. According to the gas diffusion electrode of the present invention, drainability of generated water from the electrode catalyst layer to the gas diffusion layer and moisture retention and gas diffusibility of the electrode catalyst layer can be enhanced. Moreover, according to a solid polymer electrolyte fuel cell of the present invention, stable power generation characteristics can be obtained even under an operating condition with wide humidity range and current density range.
    • 气体扩散电极包括:电极催化剂层13; 布置在电极催化剂层13上并且包括至少两层的微孔层11和12是由具有不同防水性的材料形成的第二和第一微孔层12和11,其中设置在电极催化剂层13侧的第二微孔层12 被构成为具有比第一微孔层11更高的拒水性; 以及设置在微孔层11和12上并由碳纤维形成的氧化剂气体扩散基板10。 根据本发明的气体扩散电极,可以提高从电极催化剂层到气体扩散层的产生的水的排水性和电极催化剂层的保湿性和气体扩散性。 此外,根据本发明的固体高分子电解质型燃料电池,即使在宽湿度范围和电流密度范围的运行条件下也能够获得稳定的发电特性。