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    • 1. 发明专利
    • Separator for fuel cell, fuel cell stack, method of manufacturing the separator, and fuel cell vehicle
    • 燃料电池分离器,燃料电池堆,制造分离器的方法和燃料电池车
    • JP2005123160A
    • 2005-05-12
    • JP2004162988
    • 2004-06-01
    • Nissan Motor Co Ltd日産自動車株式会社
    • CHIBA HIROTAKAOE NOBUFUMIOTANI KEIZOKANO MAKOTO
    • H01M8/02H01M8/10
    • H01M8/021H01M8/0206H01M8/0228H01M8/0254H01M8/026H01M8/1007Y02P70/56
    • PROBLEM TO BE SOLVED: To provide a separator for a fuel cell and its manufacturing method reducing a contact resistance with a gas diffusion electrode, and enhancing power generation efficiency of the fuel cell while preventing deterioration in corrosion resistance, and to provide a fuel cell stack and a fuel cell vehicle. SOLUTION: A prescribed cladded thin plate is press-molded to form a gas flow path part (gas flowing path groove) 4 of which the shape of cross section is formed into prescribed wave form or projection/recessed form at a central part 2, and a flat part (bead part 6) at an outer periphery of the central part 2. A limited plate thickness residual ratio of limit at which deterioration in corrosion resistance resulting from breaking in a noble metal layer and metal plate explosion of the cladded thin plate can be neglected is obtained in advance. In a cross section shape in a direction perpendicular to a flow path of a gas flow path part 4, the relation of t2≥t4 × limited plate thickness residual ratio is satisfied, wherein, t1 is a plate thickness of a rib crest central part contacting with a gas diffusion layer, t2 is a plate thickness of a part at which the plate thickness of the rib crest shoulder part is thinnest, t3 is a plate thickness of a rib crest slope part and t4 is a plate thickness of a separator of a periphery part. COPYRIGHT: (C)2005,JPO&NCIPI
    • 解决问题:提供一种燃料电池用隔板及其制造方法,其与气体扩散电极的接触电阻降低,同时能够提高燃料电池的发电效率,同时防止耐腐蚀性的劣化,提供一种 燃料电池堆和燃料电池车。 解决方案:将规定的包层薄板压制成形成在中央部形成为规定波形或突出/凹陷形状的气体流路部(气体流路槽)4 在中央部2的外周具有平坦部(胎圈部6)。由贵金属层断裂而导致的耐腐蚀性劣化的限制板限制的板厚残留率和包层金属板爆炸 预先获得薄板可忽略。 在与气体流路部4的流路垂直的方向上的截面形状中,满足t2≥t4×限制板厚残留率的关系,其中t1是肋峰部中心部接触的板厚 具有气体扩散层的情况下,t2是肋顶肩部的板厚最薄的部分的板厚,t3是肋顶部坡度部的板厚,t4是板条厚度 周边部分。 版权所有(C)2005,JPO&NCIPI
    • 3. 发明专利
    • Separator for fuel cell, fuel cell, and fuel cell vehicle
    • 燃料电池,燃料电池和燃料电池车辆的分离器
    • JP2005032578A
    • 2005-02-03
    • JP2003271185
    • 2003-07-04
    • Nissan Motor Co Ltd日産自動車株式会社
    • CHIBA HIROTAKAOTANI KEIZO
    • B60K1/04H01M8/00H01M8/02H01M8/10
    • Y02E60/521
    • PROBLEM TO BE SOLVED: To prevent the degradation of generating characteristics due to increase in contacting resistance and variations in gas flow, by preventing the warping of separators forming a metal thin plate in corrugated form. SOLUTION: The fuel cell separators, which are arranged opposed to each other on each electrode face on both sides of a solid electrolyte and has gas passages 11, 17 by which an oxidant gas or a fuel gas is supplied on the side opposed to the electrode face and cooling water passages 18 on the opposite side face to the electrode face, comprises respectively the gas passages 11, 17 and cooling water passages 18 by forming the plate material in corrugated form and with concave and convex shapes. The sum of the passage width dimension or sum of passage cross section of these gas passages 11, 17 is made equal to the sum of the passage width dimension or passage cross section of the cooling water passages 18 formed on the opposite side face of these. COPYRIGHT: (C)2005,JPO&NCIPI
    • 要解决的问题:通过防止形成波纹形式的金属薄板的分离器的翘曲来防止由于接触电阻的增加和气流的变化引起的发生特性的劣化。 解决方案:燃料电池隔板在固体电解质两侧的每个电极面上彼此相对设置,并且具有气体通道11,17,通过该气体通道将氧化剂气体或燃料气体供给到相对侧 在与电极面相反的侧面上的电极面和冷却水通道18分别包括气体通道11,17和冷却水通道18,通过将波纹形式的板材形成为凹凸形状。 这些气体通道11,17的通道宽度尺寸或通道横截面积之和的总和等于形成在这些气体通道11,17的相对侧面上的冷却水通道18的通道宽度尺寸或通道横截面之和。 版权所有(C)2005,JPO&NCIPI
    • 5. 发明专利
    • Soft magnetic material and manufacturing method of the same
    • 软磁材料及其制造方法
    • JP2009032739A
    • 2009-02-12
    • JP2007192436
    • 2007-07-24
    • Nissan Motor Co Ltd日産自動車株式会社
    • OWADA MASARUOTANI KEIZO
    • H01F1/153B22F1/02B22F3/00C22C45/02H01F1/24H01F41/02
    • PROBLEM TO BE SOLVED: To provide means for improving strength of a member such as a magnetic core obtained while acquiring high specific resistance required intrinsically among the soft magnetic characteristics in the soft magnetic materials constituting the member such as the magnetic core. SOLUTION: In the soft magnetic materials in the present invention, Fe, Ni or Co is used as the basic material and basic material particle is formed from a metallic glass having a temperature interval of 20 K or higher for over-cooling region defined by ΔT x =T x -T g (where, T x indicates crystallization start temperature, while T g , glass transition temperature). The problem explained above can be solved by allowing an insulating film formed of an oxide glass having the softening point lower than the glass transition temperature (Tg) of the metallic glass to exist among the basic material particles. Alternatively the problem explained above can be solved by employing the method to mix the basic material powder and the insulating material powder by the high-speed air-flow impact method during manufacture of the soft magnetic material. COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供用于提高构成诸如磁芯的构件的软磁性材料的软磁特性中本质上所需的高电阻之间获得的诸如磁芯之类的构件的强度的装置。 解决方案:在本发明的软磁性材料中,使用Fe,Ni或Co作为基体材料,并且由过冷区域的温度间隔为20K以上的金属玻璃形成基体材料粒子 (T x )表示结晶开始温度,而T 玻璃化转变温度)。 上述问题可以通过使由软化点低于金属玻璃的玻璃化转变温度(Tg)的氧化物玻璃形成的绝缘膜存在于基本材料颗粒中来解决。 或者,上述问题可以通过在软磁材料的制造过程中采用通过高速气流冲击法混合基础材料粉末和绝缘材料粉末的方法来解决。 版权所有(C)2009,JPO&INPIT
    • 7. 发明专利
    • Rolling member and its manufacturing method
    • 滚动构件及其制造方法
    • JP2005337374A
    • 2005-12-08
    • JP2004157028
    • 2004-05-27
    • Nippon Parkerizing Co LtdNissan Motor Co Ltd日本パーカライジング株式会社日産自動車株式会社
    • UCHIYAMA NORIKOOTANI KEIZOOKUHATA MITSUHIRO
    • F16H55/06C23C8/02C23C28/00C23C30/00C25D5/12C25D7/10F16C33/64F16H15/38
    • C23C28/023C23C8/02C23C28/028C23C30/00
    • PROBLEM TO BE SOLVED: To provide a rolling member capable of fully achieving hydrogen intrusion restraining effect and metal contact reduction effect even under high temperature and high bearing pressure conditions.
      SOLUTION: When an observation range is set by a reference line segment of a predetermined length and two lines La and Lb passing through both ends A and B in a perpendicular direction cross section with respect to a surface of a base material after coating nickel, and a ratio of a boundary length L1 of the base material M and a nickel coating film N in the observation range and a linear length L2 of the reference line segment (L1/L2) is obtained, an average value of the ratio between the boundary length L1 and the linear length L2 at least in arbitrary three portions is 1.2 to 2.4 times. The boundary length and the area of the nickel coating film N is increased, and adhesion strength of the coating film N with respect to the base material M is enhanced, forming of a newly prepared surface by micro metallic contact is reduced, hydrogen intrusion into the base material M is restrained, and rolling fatigue life is improved.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 解决的问题:即使在高温高轴承压力条件下,也能够提供能够充分实现氢侵入抑制效果和金属接触降低效果的滚动体。 解决方案:当通过预定长度的参考线段设定观察范围,并且在涂覆后相对于基材表面的垂直方向横截面通过两端A和B两端的两条线La和Lb 镍,并且在观察范围内的基材M和镍覆膜N的边界长度L1与基准线段的线长度L2(L1 / L2)之间的比率可以得到, 边界长度L1和线性长度L2至少在任意三部分中是1.2〜2.4倍。 镍涂膜N的边界长度和面积增加,涂膜N相对于基材M的粘附强度增强,微金属接触形成新制备的表面减少,氢侵入 基材M受到限制,轧制疲劳寿命提高。 版权所有(C)2006,JPO&NCIPI
    • 9. 发明专利
    • Rolling element for continuously variable transmission and its manufacturing method
    • 连续可变传动的滚动元件及其制造方法
    • JP2003074660A
    • 2003-03-12
    • JP2001317761
    • 2001-10-16
    • Nippon Parkerizing Co LtdNissan Motor Co Ltd日本パーカライジング株式会社日産自動車株式会社
    • HIRAI EIJIOKUHATA MITSUHIROKINO NOBUOOTANI KEIZO
    • F16H15/38C23C28/02C25D5/14C25D5/50C25D7/00
    • PROBLEM TO BE SOLVED: To solve a problem of a toroidal type continuously variable transmission (CVT) that lowering of a fatigue life of a rolling element might occur since a bearing groove part of a power roller receives high surface pressure, traction force and radial directional load.
      SOLUTION: This rolling element is used for a CVT having such a construction that a power roller inner ring 7 is contacted with discs 3 and 12 through lubricating oil and, for example, a nickel (Ni) based coat with its coat thickness of 0.1-20 μm is applied to a bearing groove part 7a, which is a rolling surface of the power roller inner ring 7 of a rolling element. The possibility of micro metal-to-metal contact is lowered and penetration of hydrogen into a substrate is restrained by forming a protecting coat with low hydrogen permeability. Thus, short life peel-off due to hydrogen embrittlement is inhibited and the rolling fatigue life is improved.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:为了解决由于动力辊的轴承槽部分承受高的表面压力,牵引力和径向定向的滚动体的疲劳寿命降低的环形型无级变速器(CVT)的问题 加载。 解决方案:该滚动元件用于具有动力辊内圈7通过润滑油和例如镍(Ni)基涂层与盘3和12接触的结构的CVT,其涂层厚度为0.1- 对作为滚动体的动力辊内圈7的滚动面的轴承槽部7a施加20μm。 微金属与金属接触的可能性降低,并且通过形成具有低透氢性的保护涂层来抑制氢进入基底的可能性。 因此,由于氢脆而使寿命短的剥离被抑制,并且轧制疲劳寿命得到改善。
    • 10. 发明专利
    • Sintered soft magnetic material, and its manufacturing method
    • 烧结软磁材料及其制造方法
    • JP2009135413A
    • 2009-06-18
    • JP2008186182
    • 2008-07-17
    • Nissan Motor Co Ltd日産自動車株式会社
    • MATSUSHITA KAINOWADA MASARUOTANI KEIZOYASUDA YOSHITERUYAMAGUCHI TAKUO
    • H01F1/24B22F1/02H02K1/02
    • PROBLEM TO BE SOLVED: To provide a sintered soft magnetic material capable of enduring use in a high-revolution compact motor.
      SOLUTION: This sintered soft magnetic material comprises; base material particles containing iron being a ferromagnetic material as a main constituent; an intermediate layer covering the base material particles and formed of a metal; an insulating coating covering the intermediate layer and formed of an inorganic oxide; a mutual diffusion layer present on an interface between the base material particles and the intermediate layer; a nonstoichiometric oxide layer present on an interface between the intermediate layer and the insulating coating. In the sintered soft magnetic material, the oxide of the metal has standard free energy of formation larger than that of the inorganic oxide, and the nonstoichiometric oxide layer contains a reactant between the metal and/or the inorganic oxide and oxygen.
      COPYRIGHT: (C)2009,JPO&INPIT
    • 要解决的问题:提供一种耐久性高的小型电动机中使用的烧结软磁性材料。 该解决方案:该烧结软磁材料包括: 以铁磁材料为主要成分的含铁的基材粒子; 覆盖基材颗粒并由金属形成的中间层; 覆盖中间层并由无机氧化物形成的绝缘涂层; 存在于基材颗粒与中间层之间的界面上的相互扩散层; 存在于中间层和绝缘涂层之间的界面上的非化学计量氧化层。 在烧结软磁材料中,金属的氧化物具有大于无机氧化物的标准形成自由能,非化学计量氧化物层在金属和/或无机氧化物与氧之间含有反应物。 版权所有(C)2009,JPO&INPIT