Patents by Inventor Masashi Matsuura

Masashi Matsuura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240087798
    Abstract: A coil component includes a coil configured of a winding, an exterior body provided to cover the coil, and a terminal part configured to be continuous with the winding. A proximal end portion of the terminal part is buried in the exterior body. A distal end portion ahead of the proximal end portion is bent from the proximal end portion and located outside a mounting surface of the exterior body along the mounting surface.
    Type: Application
    Filed: April 20, 2023
    Publication date: March 14, 2024
    Applicant: TDK CORPORATION
    Inventors: Junichiro URABE, Toshinori MATSUURA, Hajime KATO, Shintarou KOIKE, Kazushige TOHTA, Takuto KAZAMA, Masashi GOTOH
  • Patent number: 11915188
    Abstract: A delivery server includes a processor including hardware, the processor being configured to: transmit arrival information of a product to a user terminal carried by a user who has ordered the product; transmit, in a case where unattended delivery is instructed by the user terminal, unattended delivery information to a home delivery terminal of a delivery person who delivers the product, and request a signature of the user; transmit the signature information to the home delivery terminal in response to receiving signature information regarding the signature of the user from the user terminal; and transmit delivery completion information of the product to the user terminal.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: February 27, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kenji Okazaki, Masato Endo, Mayumi Kurita, Masashi Toritani, Kumiko Matsuura, Takayuki Shikoda, Masaaki Otsuka, Yoshikazu Ishii
  • Publication number: 20230245807
    Abstract: A rare earth-iron-nitrogen-based magnetic powder according to this invention contains, as main constituent components, a rare-earth element (R), iron (Fe), and nitrogen (N). Moreover, this magnetic powder has an average particle size of 1.0-10.0 ?m, and contains 22.0-30.0 mass % of a rare-earth element (R) and 2.5-4.0 mass % of nitrogen (N). Further, this magnetic powder includes: a core part having any one crystal structure among a Th2Zn17 type, a Th2Ni17 type, and a TbCu7 type; and a shell layer provided on the surface of the core part and having a thickness of 1-30 nm. The shell layer contains a rare-earth element (R) and iron (Fe) so that the R/Fe atomic ratio is 0.3-5.0, and further contains 0-10 at % (exclusive of 0) of nitrogen (N). Furthermore, this magnetic powder contains compound particles composed of a rare-earth element (R) and phosphorus (P).
    Type: Application
    Filed: March 31, 2021
    Publication date: August 3, 2023
    Applicants: Tohoku University, SUMITOMO METAL MINING CO., LTD.
    Inventors: Satoshi Sugimoto, Masashi Matsuura, Takashi Ishikawa, Yukinobu Yoneyama
  • Patent number: 11476020
    Abstract: To provide a rare earth magnet having excellent coercive force and a production method thereof. A rare earth magnet, wherein the rare earth magnet comprises a magnetic phase containing Sm, Fe, and N, a Zn phase present around the magnetic phase, and an intermediate phase present between the magnetic phase and the Zn phase, wherein the intermediate phase contains Zn and the oxygen content of the intermediate phase is higher than the oxygen content of the Zn phase; and a method for producing a rare earth magnet, including mixing a magnetic raw material powder having an oxygen content of 1.0 mass % or less and an improving agent powder containing metallic Zn and/or a Zn alloy, and heat-treating the mixed powder.
    Type: Grant
    Filed: June 20, 2018
    Date of Patent: October 18, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITY
    Inventors: Noritsugu Sakuma, Tetsuya Shoji, Kazuaki Haga, Satoshi Sugimoto, Masashi Matsuura
  • Publication number: 20200098497
    Abstract: To provide a rare earth magnet in which particles of SmFeN powder are bound using a Zn powder, wherein generation of a knick at a magnetic field of around 0 is prevented and high residual magnetic flux density Br is thereby achieved, and a production method thereof. A rare earth magnet including a main phase containing Sm, Fe, and N, at least a part of the main phase having a Th2Zn17-type or Th2Ni17-type crystal structure, a sub-phase containing Zn and Fe and being present around the main phase, and an intermediate phase containing Sm, Fe and N as well as Zn and being present between the main phase and the sub-phase, wherein the average Fe content in the sub-phase is 33 at % or less relative to the whole sub-phase.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITY
    Inventors: Noritsugu SAKUMA, Tetsuya SHOJI, Akihito KINOSHITA, Kazuaki HAGA, Daisuke ICHIGOZAKI, Yukio TAKADA, Satoshi SUGIMOTO, Masashi MATSUURA
  • Publication number: 20200098496
    Abstract: To provide a rare earth magnet in which particles of SmFeN powder are bound using a Zn alloy powder, wherein generation of a knick at a magnetic field of around 0 is prevented, and a production method thereof. A rare earth magnet including a main phase containing Sm, Fe, and N, at least a part of the main phase having a Th2Zn17-type or Th2Ni17-type crystal structure, a sub-phase containing at least either Si or Sm, and Zn and Fe and being present around the main phase, and an intermediate phase containing Sm, Fe and N as well as Zn and being present between the main phase and the sub-phase, wherein the average Fe content in the sub-phase is 33 at % or less relative to the whole sub-phase, and the average total content of Si and Sm in the sub-phase is from 1.4 to 4.5 at % relative to the whole subs-phase.
    Type: Application
    Filed: September 19, 2019
    Publication date: March 26, 2020
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITY
    Inventors: Akihito KINOSHITA, Noritsugu SAKUMA, Tetsuya SHOJI, Daisuke ICHIGOZAKI, Tatsuhiko HIRANO, Kazuaki HAGA, Yukio TAKADA, Satoshi SUGIMOTO, Masashi MATSUURA
  • Publication number: 20190006068
    Abstract: To provide a rare earth magnet having excellent coercive force and a production method thereof. A rare earth magnet, wherein the rare earth magnet comprises a magnetic phase containing Sm, Fe, and N, a Zn phase present around the magnetic phase, and an intermediate phase present between the magnetic phase and the Zn phase, wherein the intermediate phase contains Zn and the oxygen content of the intermediate phase is higher than the oxygen content of the Zn phase; and a method for producing a rare earth magnet, including mixing a magnetic raw material powder having an oxygen content of 1.0 mass % or less and an improving agent powder containing metallic Zn and/or a Zn alloy, and heat-treating the mixed powder.
    Type: Application
    Filed: June 20, 2018
    Publication date: January 3, 2019
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TOHOKU UNIVERSITY
    Inventors: Noritsugu SAKUMA, Tetsuya SHOJI, Kazuaki HAGA, Satoshi SUGIMOTO, Masashi MATSUURA
  • Publication number: 20180012701
    Abstract: A method for producing an RFeB system sintered magnet according to the present invention includes: a process (S1) of preparing a lump of HDDR-treated raw material alloy that contains a polycrystalline substance including crystal grains having an average grain size of 1 ?m or less in terms of an equivalent circle diameter calculated from an electron micrograph image, by an HDDR treatment including steps of heating a lump of RFeB system alloy containing 26.5 to 29.5% by weight of the rare-earth element R, in a hydrogen atmosphere at a temperature between 700 and 1,000° C., and changing the atmosphere to vacuum while maintaining the temperature within a range from 750 to 900° C.; a process (S2) of preparing a lump of raw material alloy having a high rare-earth content by heating the lump of HDDR-treated raw material alloy at a temperature between 700 and 950° C.
    Type: Application
    Filed: January 8, 2016
    Publication date: January 11, 2018
    Applicant: INTERMETALLICS CO., LTD.
    Inventors: Masato SAGAWA, Yasuhiro UNE, Hirokazu KUBO, Satoshi SUGIMOTO, Masashi MATSUURA, Michihide NAKAMURA
  • Publication number: 20170278604
    Abstract: An RFeB system sintered magnet which does not contain a heavy rare-earth element RH (Dy, Tb and Ho) in a practically effective amount and yet is suited for applications in which the magnet undergoes a temperature increase during its use. The RFeB system sintered magnet contains at least one element selected from the group consisting of Nd and Pr as a rare-earth element R in addition to Fe and B while containing none of Dy, Tb and Ho, the magnet having a temperature characteristic value t(100-23) which satisfies ?0.58<t(100-23)<0, where t(100-23) is defined by the following equation: t ( 100 - 23 ) = H cj ? ( 100 ) - H cj ? ( 23 ) ( 100 - 23 ) × H cj ? ( 23 ) × 100 using Hcj(23) which is the value of the coercivity at a temperature of 23° C. and Hcj(100) which is the value of the coercivity at a temperature of 100° C.
    Type: Application
    Filed: August 18, 2015
    Publication date: September 28, 2017
    Applicant: INTERMETALLICS CO., LTD.
    Inventors: Yasuhiro UNE, Hirokazu KUBO, Masato SAGAWA, Satoshi SUGIMOTO, Masashi MATSUURA, Michihide NAKAMURA
  • Publication number: 20160027564
    Abstract: A method for producing an RFeB system sintered magnet with the main phase grains having a grain size of 1 ?m or less with a considerably equal grain size, including: preparing a shaped body oriented by a magnetic field and sintering the shaped body, wherein the shaped body is prepared using an alloy powder of an RFeB material having a particle size distribution with an average value of 1 ?m or less in terms of a circle-equivalent diameter determined from a microscope image, the alloy powder obtained by pulverizing coarse particles having fine crystal grain, each coarse particle having grains of the RFeB material formed inside, the crystal grains having a crystal grain size distribution with an average value of 1 ?m or less in terms of the circle-equivalent diameter determined from a microscope image, and 90% by area or more of the crystal grains being separated from each other.
    Type: Application
    Filed: March 12, 2014
    Publication date: January 28, 2016
    Applicant: INTERMETALLICS CO., LTD.
    Inventors: Yasuhiro UNE, Hirokazu KUBO, Masato SAGAWA, Satoshi SUGIMOTO, Masashi MATSUURA, Michihide NAKAMURA
  • Patent number: 6942915
    Abstract: This invention relates to fibre reinforced plastic (“FPR”) roofing materials with a sandwich structure. A pair of sheets of FRP are arranged with a gap between them, and a rib structure which joins the sheets is interposed. Further, this invention relates to a method for producing FRP roofing material in which channels are provided in the core material and a reinforcing fibre impregnated with a resin is distributed through these channels. A preferred joint structure for the roofing material is to use butt joints and to provide a connecting layer extending across the surfaces of both ends of the sandwich structures. A layer containing a resin distribution medium is provided between the abutting end faces. This invention overcomes various problems of conventional joint structures, permitting the ends of the sandwich structures to be easily, firmly and cheaply joined together, ensuring high joint strength and rigidity, while achieving excellent appearance.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: September 13, 2005
    Assignee: Toray Industries, Inc.
    Inventors: Toshiyuki Kondo, Toshihiro Ito, Masashi Matsuura
  • Patent number: 6161714
    Abstract: A cargo container which has sufficient strength and rigidity. The container includes side walls, a roof and a base, wherein at least the side walls are made of FRP (fiber reinforced plastics) plates, and wherein adjacent two sides of the plates are made of an integrally formed continuous FRP panel. The cargo container is suited for use in an aircraft, ship, freight train or the like.
    Type: Grant
    Filed: January 31, 1996
    Date of Patent: December 19, 2000
    Assignee: Toray Industries, Inc.
    Inventors: Masashi Matsuura, Nobuhiko Shimizu, Masayoshi Yamagiwa, Hiroshi Ohnishi
  • Patent number: 5249717
    Abstract: A rotary nozzle which is simple in construction and easy to manufacture its bricks, has no danger of leakage of molten steel and is capable of rotatably connecting a collector nozzle and a long nozzle. The rotary nozzle includes a fixed plate brick attached to a base member and having at least a sliding surface thereof formed to incline with an angle of .theta..degree., a slide plate surface having at least a sliding surface thereof formed as an inclined surface corresponding to the sliding surface of the fixed plate brick and fixedly mounted, along with a collector nozzle, in a supporting member, and a frame vertically displaceably supporting the supporting member through a plurality of spring means and bolts and adapted to be driven by driving means mounted on the base member. The lower end of the collector nozzle is formed into a spherical shape so as to ensure its smooth connection with a long nozzle and its rotation.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: October 5, 1993
    Assignee: Nippon Rotary Nozzle Co., Ltd.
    Inventors: Hisao Inubushi, Motoo Amano, Masashi Matsuura