中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

92 records (took 0.016 seconds)

    TUNGSTEN-CONTAINING POWDER
    51.
    发明公开
    TUNGSTEN-CONTAINING POWDER 审中-公开

    公开(公告)号：US20240100593A1

    公开(公告)日：2024-03-28

    申请号：US18266634

    申请日：2021-12-08

    Applicant: A.L.M.T. Corp.

    Inventor： Masanori OHNO ,  Takuya KONO ,  Fumitaka GAMO ,  Takayuki FUDO

    IPC: B22F1/05

    CPC classification number: B22F1/05 ,  B22F2301/20 ,  B22F2304/10

    Abstract: In a case where an FSSS average particle size of a tungsten-containing powder as obtained by an FSSS method is defined as a (μm) and a density TD, which is an inverse number of a tap volume of the tungsten-containing powder, is defined as p (g/cm3), a relational expression of p≥0.37a+7.04 is satisfied when a range of the FSSS average particle size a is 0.5 μm≤a≤5.0 μm.

    Reamer
    52.
    发明授权
    Reamer 有权

    公开(公告)号：US11724323B2

    公开(公告)日：2023-08-15

    申请号：US16973716

    申请日：2019-04-03

    Applicant: A.L.M.T. Corp.

    Inventor： Sakuya Tanaka ,  Koji Sawa

    IPC: B23D77/00 ,  B23D77/02

    CPC classification number: B23D77/00 ,  B23D77/02 ,  B23D2277/105 ,  B23D2277/72

    Abstract: A reamer incudes a core and a plurality of outer-circumference cutting edges provided on an outer circumference of the core and made of a hard tool material. The core extends from a front end to a rear end. The core is provided with a plurality of flutes from the front end to the rear end. A center-of-gravity adjustment portion, which adjusts a distance from a center of rotation to a center of gravity, is provided at least partially from terminal ends of the plurality of flutes on a rear end side to the rear end of the core. The center-of-gravity adjustment portion causes the deviation of the center of gravity from the center of rotation to be smaller than when no center-of-gravity adjustment portion is provided.

    COMPOSITE MATERIAL
    55.
    发明申请
    COMPOSITE MATERIAL 有权

    公开(公告)号：US20230086909A1

    公开(公告)日：2023-03-23

    申请号：US17800422

    申请日：2021-10-12

    Applicant: A.L.M.T. Corp.

    Inventor： Naoya MATSUTA

    IPC: B32B15/01 ,  C22C19/03 ,  C22C9/06

    Abstract: A composite material includes: an iron-based alloy layer; an intermediate layer provided on the iron-based alloy layer; and a tungsten-containing layer provided on the intermediate layer, wherein the intermediate layer is composed of pure nickel or is an alloy that contains at least one selected from a group consisting of copper, cobalt, and iron at more than 0 mass % and less than or equal to 71 mass % in total, and that contains nickel at more than or equal to 29 mass % and less than 100 mass %.

    COMPOSITE MATERIAL
    56.
    发明申请
    COMPOSITE MATERIAL 有权

    公开(公告)号：US20220186347A1

    公开(公告)日：2022-06-16

    申请号：US17598990

    申请日：2020-03-13

    Applicant: Sumitomo Electric Industries, Ltd. ,  A.L.M.T. Corp.

    Inventor： Isao IWAYAMA ,  Ryota MATSUGI ,  Takahiro NISHIMIZU

    IPC: C22C26/00 ,  C22C29/06 ,  C22C1/10 ,  C22C47/08

    Abstract: A composite material contains a metallic phase, a non-metallic phase and a specific element. At least 90 mass % of the metallic phase is composed of at least one selected from the group consisting of Ag and Cu. The non-metallic phase includes a coated core material. The coated core material includes a core material and a carbide layer that covers at least a part of a surface of the core material. The core material contains at least one carbon-containing material selected from the group consisting of diamond, graphite, carbon fibers, and silicon carbide. The carbide layer contains a carbide of at least one metal element selected from the group consisting of Ti, Cr, Ta, and V. The specific element is at least one selected from the group consisting of Y and Mg. A total content of the specific element is 0.0004 mass % to 1.3 mass %.

    Molybdenum crucible
    59.
    发明授权
    Molybdenum crucible 有权

    公开(公告)号：US10858759B2

    公开(公告)日：2020-12-08

    申请号：US16079733

    申请日：2017-02-23

    Applicant: A.L.M.T. Corp.

    Inventor： Makoto Watanabe ,  Yoshitake Fukaya ,  Masahiro Katoh ,  Hidenobu Nishino

    IPC: C30B35/00 ,  C30B29/20 ,  C22F1/18 ,  F27B14/10 ,  F27D1/00 ,  C22F1/00 ,  B22F5/00 ,  B22F3/12 ,  C22C1/04

    Abstract: The molybdenum crucible includes a cylindrical side wall and a bottom provided integrally with one end of the side wall. The side wall includes a coarse grain region configured to extend from an outer wall toward an inner wall and a fine grain region configured to extend from the inner wall toward the outer wall so as to be in contact with the coarse grain region. The ratio of the coarse grain region in the side wall in the thickness direction thereof is 10% or more and less than 90%. The coarse grain region is defined as such a region in which crystal grains having a grain size of 1 mm or more determined by an intercept method in the height direction of the crucible occupy 95% or more of an area of a measurement region.

    TUNGSTEN ELECTRODE MATERIAL
    60.
    发明申请
    TUNGSTEN ELECTRODE MATERIAL 审中-公开

    公开(公告)号：US20200066505A1

    公开(公告)日：2020-02-27

    申请号：US16499157

    申请日：2018-03-23

    Applicant: A.L.M.T. Corp.

    Inventor： Seiji NAKABAYASHI ,  Tomohiro TAKIDA

    IPC: H01J61/073 ,  C22C27/04

    Abstract: A tungsten electrode material contains a tungsten-based material and oxide particles dispersed in the tungsten-based material. The oxide particles are composed of an oxide solid solution in which a Zr oxide and/or an Hf oxide and an oxide of at least one rare earth selected from the group consisting of Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu are dissolved as a solid solution. A content of the rare-earth oxide with respect to a total amount of the Zr oxide and/or the Hf oxide and the rare-earth oxide is not lower than 66 mol % and not higher than 97 mol %, a content of the oxide solid solution is not lower than 0.5 mass % and not higher than 9 mass %, and the remainder is composed substantially of tungsten.

Patent Agency Ranking