公开(公告)号：US20240286211A1

公开(公告)日：2024-08-29

申请号：US18569858

申请日：2022-06-15

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

Inventor： Yuma MIYAZAKI

IPC: B23D77/02

CPC classification number: B23D77/02 ,  B23D2277/04

Abstract: A rotary cutting tool includes a first cutting blade, a second cutting blade, a third cutting blade, a fourth cutting blade, and a fifth cutting blade on a circumference, in which a rotation angle from the first cutting blade to the second cutting blade is 60±1°, a rotation angle from the second cutting blade to the third cutting blade is 75±1°, a rotation angle from the third cutting blade to the fourth cutting blade is 60±1°, a rotation angle from the fourth cutting blade to the fifth cutting blade is 75±1°, and a rotation angle from the fifth cutting blade to the first cutting blade is 90±1°.

公开(公告)号：US11673231B2

公开(公告)日：2023-06-13

申请号：US16652532

申请日：2018-09-18

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

Inventor： Shuichi Amino ,  Tomohiro Ishizu

IPC: B24D3/14 ,  B24D3/18 ,  B24D3/02 ,  B24D3/04

CPC classification number: B24D3/14

Abstract: There is provided a vitrified bond super-abrasive grinding wheel including: a core; and a super-abrasive grain layer provided on the core, wherein the super-abrasive grain layer includes a plurality of super-abrasive grains and a vitrified bond that joins the plurality of super-abrasive grains, and the vitrified bond has a plurality of bond bridges located between the plurality of super-abrasive grains to join the plurality of super-abrasive grains, not less than 80% of the plurality of super-abrasive grains are joined to the super-abrasive grains adjacent thereto by the bond bridges, and not less than 90% of the plurality of bond bridges in a cross section of the super-abrasive grain layer have a thickness equal to or smaller than an average grain size of the super-abrasive grains, and have a length greater than the thickness.

公开(公告)号：US20230126268A1

公开(公告)日：2023-04-27

申请号：US17912508

申请日：2021-03-05

Applicant: SUMITOMO ELECTRIC INDUSTRIES, LTD. ,  A.L.M.T. Corp.

Inventor： Ryota MATSUGI ,  Isao IWAYAMA ,  Takahiro NISHIMIZU ,  Chieko SOTA

IPC: C09K5/14 ,  B22F1/18 ,  B22F1/052

Abstract: A composite material including a metallic phase and plurality of particles dispersed in the metallic phase. The plurality of particles is a carbon-based material; the metallic phase contains a main element, a first element, and a second element; the coating layer of each of the plurality of particles is carbide of the second element. The main element is copper; the first element is a metallic element having a lower surface tension than copper; the second element is at least one selected from the group consisting of beryllium, silicon, titanium, chromium, zirconium, niobium, hafnium, and tantalum.

公开(公告)号：US11380602B2

公开(公告)日：2022-07-05

申请号：US16977841

申请日：2019-02-26

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

Inventor： Kengo Goto ,  Akihisa Hosoe ,  Tadashi Arikawa ,  Hiroya Sato ,  Masatoshi Nagashima ,  Shohei Murakami

IPC: H01L23/373 ,  C25D3/48 ,  C25D5/50 ,  B32B15/01 ,  B32B15/04 ,  C25D5/48 ,  H01L21/60 ,  C22C5/02 ,  C23C28/00 ,  B32B15/20 ,  C22C5/00 ,  C23C28/02 ,  C23C30/00 ,  C22C32/00 ,  C23C18/16 ,  C25D3/12 ,  C25D3/62 ,  C25D5/02 ,  C25D5/12 ,  C25D5/00

Abstract: Provided is a plating film containing Au and Tl, including Tl oxides including Tl2O on a surface of the plating film, a ratio of Tl atoms constituting Tl2O to a total of Tl atoms constituting the Tl oxides and Tl atoms constituting Tl simple substances on the surface being 40% or more.

公开(公告)号：US20210398877A1

公开(公告)日：2021-12-23

申请号：US17289259

申请日：2019-08-30

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

Inventor： Ryota MATSUGI ,  Isao IWAYAMA ,  Chieko TANAKA ,  Hideaki MORIGAMI

IPC: H01L23/373 ,  B23K1/00 ,  B23K35/32

Abstract: A heat radiation member excellent in electrical insulation and better in thermal conduction is provided. The heat radiation member includes a substrate composed of a composite material containing diamond and a metallic phase, an insulating plate provided on at least a part of front and rear surfaces of the substrate and composed of an aluminum nitride, and a single bonding layer interposed between the substrate and the insulating plate, the heat radiation member having thermal conductivity not lower than 400 W/m·K.

公开(公告)号：US11147156B2

公开(公告)日：2021-10-12

申请号：US16349340

申请日：2017-11-08

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

Inventor： Isao Iwayama ,  Shigeki Koyama ,  Masashi Okamoto ,  Yuta Inoue ,  Hiroyuki Kontani ,  Takehisa Yamamoto

IPC: H05K1/02 ,  H01L23/373 ,  H05K1/18 ,  H05K1/03 ,  C22C29/06 ,  H05K7/20 ,  C22C26/00

Abstract: A composite member includes a substrate composed of a composite material containing a metal and a non-metal. One surface of the substrate has spherical warpage of which radius of curvature R is not smaller than 5000 mm and not greater than 35000 mm. A sphericity error is not greater than 10.0 μm, the sphericity error being defined as an average distance between a plurality of measurement points on a contour of a warped portion of the substrate and approximate arcs defined by the plurality of measurement points. The substrate has a thermal conductivity not lower than 150 W/m·K and a coefficient of linear expansion not greater than 10 ppm/K.

公开(公告)号：US10465266B2

公开(公告)日：2019-11-05

申请号：US15314671

申请日：2015-05-22

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

Inventor： Ayuri Tsuji ,  Shigekazu Yamazaki ,  Akihiko Ikegaya ,  Noboru Uenishi

IPC: C22C27/04 ,  B22F1/00 ,  B22F3/10 ,  B23K20/12 ,  C22C32/00

Abstract: The present heat-resistant tungsten alloy has a first phase containing W as a major component, a second phase having a carbonitride of at least one element of Ti, Zr and Hf and containing the carbonitride as a major component when W is removed, and a third phase having a carbide of at least one element of group 5A elements in the periodic table and containing the carbide as a major component when W is removed, the heat-resistant tungsten alloy having a Vickers hardness of 550 Hv or more at a room temperature, a displacement of 1 mm or more when leading to fracture, as determined in a three point bending test at 1200° C., and a 0.2% proof stress of 900 MPa or more, as determined in the three point bending test at 1200° C.

公开(公告)号：US20190060968A1

公开(公告)日：2019-02-28

申请号：US15771591

申请日：2016-10-19

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

Inventor： Hitoshi Sumiya ,  Takeshi Sato ,  Makoto Yukawa ,  Bunya Suemitsu

IPC: B21C3/02

Abstract: A wear-resistant tool includes composite polycrystalline diamond as a core, the composite polycrystalline diamond being composed of polycrystalline diamond in which particulate diamond is directly bonded and non diamond carbon. The polycrystalline diamond in the composite polycrystalline diamond is three-dimensionally continuous in composite polycrystal and primary particles have an average particle size from 10 to 500 nm.

公开(公告)号：US20190054592A1

公开(公告)日：2019-02-21

申请号：US16078462

申请日：2016-12-07

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

Inventor： Sadateru Nakamatsu

IPC: B24B53/12 ,  B24D3/06 ,  B24B53/075 ,  B24D5/00

Abstract: An abrasive tool has an abrasive grain layer comprising a plurality of hard abrasive grains bonded by a binder, with a plurality of the hard abrasive grains each having a working surface formed to contact a workpiece, a ratio of a total area of a plurality of such working surfaces to an area of an imaginary plane smoothly connecting the plurality of working surfaces being 5% or more and 30% or less.

公开(公告)号：US10174410B2

公开(公告)日：2019-01-08

申请号：US14130204

申请日：2013-03-12

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

Inventor： Takanori Kadokura ,  Hidenobu Nishino ,  Ayuri Tsuji ,  Shigekazu Yamazaki ,  Akihiko Ikegaya

IPC: C22C27/04 ,  C22C38/50 ,  B21C25/02 ,  C22C1/04 ,  C22C32/00 ,  C22C38/44 ,  B22F3/17 ,  B22F3/20

Abstract: A heat-resistant molybdenum alloy of this invention comprises a first phase containing Mo as a main component and a second phase comprising a Mo—Si—B-based intermetallic compound particle phase, wherein the balance is an inevitable impurity and wherein the Si content is 0.05 mass % or more and 0.80 mass % or less and the B content is 0.04 mass % or more and 0.60 mass % or less.