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    • 52. 发明授权
    • Bearing with improved lubrication seals
    • 轴承带有改进的润滑密封
    • US4919551A
    • 1990-04-24
    • US301941
    • 1989-01-26
    • Masao NunotaniMasaaki Matsumoto
    • Masao NunotaniMasaaki Matsumoto
    • F16C19/36F16C19/54F16C33/66F16C33/76F16C33/78F16H57/04
    • F16C19/364F16C19/548F16C19/56F16C33/6674F16C33/6685F16C33/7813F16C33/7889F16H57/04F16C2361/61
    • A tapered roller bearing having an inner ring and an outer ring, each respectively having of a tapered race, a plurality of tapered rollers, a cage which retains the tapered rollers at an even interval in the circumferential direction, and first and second seals. The first seal has a lip and main element, the main element being mounted on the small diameter end portion of the inner ring, and the lip being forced in the axial outward direction of the bearing against the outer ring, and separated from said outer ring when forced in the inward axial direction. The second seal has a lip and main element, the main element mounted on the large diameter end portion of the inner ring, and the lip forced in the axial inward direction of the bearing against the outer ring, and separated from said outer ring when forced in the axial outward direction. The lips of the first seal and second seal are moved and separated from the outer ring, thus creating a clearance, by a force acting in the same direction. Lubrication is accomplished by supplying lubricating oil to this bearing in the one direction, so that only the lubricating oil passes through the bearing and penetration of foreign matter contained in the lubricating oil to the bearing is prevented by the seals.
    • 一种具有内环和外圈的圆锥滚子轴承,每个分别具有锥形座圈,多个圆锥滚子,在圆周方向上以均匀间隔保持圆锥滚子的保持架以及第一和第二密封件。 所述第一密封件具有唇部和主要元件,所述主要元件安装在所述内圈的小直径端部上,并且所述唇缘沿所述轴承的轴向向外的方向被压向所述外圈,并与所述外圈分离 当被向内轴向强制时。 第二密封件具有唇部和主要元件,主要元件安装在内圈的大直径端部上,并且唇部沿着轴承沿轴向向内的方向压靠外圈,并且当被迫时与所述外圈分离 在轴向向外的方向。 第一密封件和第二密封件的唇缘从外圈移动和分离,从而通过沿相同方向作用的力产生间隙。 通过在一个方向向该轴承供给​​润滑油来实现润滑,只有润滑油通过轴承,并且通过密封件防止润滑油中包含的异物渗入轴承。
    • 53. 发明授权
    • Epoxy resin composition for prepreg, prepreg, and multilayer printed circuit board
    • 预浸料,预浸料和多层印刷电路板用环氧树脂组合物
    • US09206308B2
    • 2015-12-08
    • US13637629
    • 2011-03-22
    • Tomoaki IwamiMasaaki MatsumotoTomoyuki AbeTatsuo YonemotoHiroaki Fujiwara
    • Tomoaki IwamiMasaaki MatsumotoTomoyuki AbeTatsuo YonemotoHiroaki Fujiwara
    • H05K1/03B32B27/04B32B27/20B32B27/26B32B27/38C08K3/10C08K3/22C08L63/00C08G59/22C08G59/30C08G59/38C08G59/62C08G59/40C08J5/24C08K9/02C08K5/5313C08K5/5397
    • C08L63/00C08G59/4021C08G59/621C08J5/24C08J2363/00C08K3/10C08K3/22C08K5/5313C08K5/5397C08K9/02H05K1/0326H05K1/0353H05K1/0366H05K1/0373H05K2201/012H05K2201/0209H05K2201/0227H05K2201/0263
    • The problem to be solved by the invention is to provide an epoxy resin composition for a prepreg, which is used in the manufacture of a printed circuit board containing a multilayer printed circuit board, wherein the epoxy resin composition for a prepreg is characterized by containing as essential components, a phosphorus compound that has 1.8 or more and less than 3 on average of a phenolic hydroxyl group that is reactive to an epoxy resin in the molecule, and that has 0.8 or more on average of a phosphorus element; a bifunctional epoxy resin that has 1.8 or more and less than 2.6 on average of epoxy groups in the molecule; a multi-functional epoxy resin that contains 2.8 or more on average of epoxy groups in one molecule; a hardening agent; an inorganic filler; and a molybdenum compound, wherein the epoxy resin composition for a prepreg is obtained by blending a pre-reacted epoxy resin, which is obtained by reacting at least the phosphorus compound with the bifunctional epoxy resin and the multi-functional epoxy resin, or the bifunctional epoxy resin only in advance, the bifunctional epoxy resin or the multi-functional epoxy resin, the hardening agent, the inorganic filler, and the molybdenum compound, which is excellent in flame retardance, heat resistance, thermal stiffness, and excellent in hole position accuracy without the production of a harmful substance at the time of combustion, a prepreg using the epoxy resin composition for a prepreg, and a multilayer printed circuit board using the prepreg.
    • 本发明要解决的问题是提供一种用于预浸料的环氧树脂组合物,其用于制造含有多层印刷电路板的印刷电路板,其中预浸料的环氧树脂组合物的特征在于含有 必要成分,平均分子中与环氧树脂反应的酚羟基平均为1.8以上且小于3的磷化合物,平均为磷成分为0.8以上的磷化合物; 分子中环氧基团平均为1.8以上且小于2.6的双官能环氧树脂; 在一个分子中含有2.8个或更多个平均环氧基的多官能环氧树脂; 硬化剂; 无机填料; 和钼化合物,其中预浸料用环氧树脂组合物通过将至少使磷化合物与双官能环氧树脂和多官能环氧树脂反应获得的预反应环氧树脂或双官能团 环氧树脂仅提前,双功能环氧树脂或多功能环氧树脂,硬化剂,无机填料和钼化合物,其阻燃性,耐热性,热刚度优异,孔位精度优异 在燃烧时不产生有害物质,使用该预浸料坯用环氧树脂组合物的预浸料坯和使用该预浸料坯的多层印刷电路板。
    • 56. 发明授权
    • Magnetic head slider, support therefor and magnetic disk unit
    • 磁头滑块,支架及磁盘单元
    • US07038883B2
    • 2006-05-02
    • US10385674
    • 2003-03-12
    • Ryuji TsuchiyamaHidekazu KohiraMasaaki MatsumotoKiyoshi HashimotoJunguo Xu
    • Ryuji TsuchiyamaHidekazu KohiraMasaaki MatsumotoKiyoshi HashimotoJunguo Xu
    • G11B5/60
    • G11B5/6082
    • A magnetic head slider mounted on a magnetic disk unit for supporting a magnetic head that writes and reads information to and from a magnetic disk is constructed such that a depth δs1 from the surfaces of leading and trailing pads, which come into contact with a medium surface when the disk is at rest, to stepped surfaces formed on the air inflow side of the leading pads, a depth δs2 from the contact surfaces to stepped surfaces formed on the air inflow side of the trailing pad and a step depth δs3 from the contact surfaces to the surfaces of side rails are in a relation of δs1≦δs2≦δs3. With this arrangement, the slider can follow the waved medium surface at a low flying height with a small flying height fluctuation, thus realizing high density recording, high reliability and reduced cost of the magnetic disk unit.
    • 安装在用于支撑从磁盘写入信息和从磁盘读取信息的磁头的磁盘单元上的磁头滑块被构造成使得与介质接触的前垫和后垫的表面的深度增加1 当盘片处于静止状态时,形成在前垫的空气流入侧的台阶表面,从接触表面到后垫的空气流入侧的台阶表面的深度增加2, 侧轨表面的接触表面是三角形1 <= deltas 2 <= deltas 3的关系。通过这种布置,滑块可以以较低的飞行高度跟随波浪介质表面,具有较小的飞行高度波动,因此 实现高密度记录,高可靠性,降低磁盘单元成本。