Patents Assigned to PROTERIAL, LTD.
  • Patent number: 11951434
    Abstract: A ceramic honeycomb filter has (a) cross section areas of intake flow paths being larger than those of discharge flow paths; (b) the intake and discharge flow paths having octagonal cross section shapes with four-fold rotation symmetry each obtained by cutting off four corners from a square; (c) the intake and discharge flow paths being alternately arranged in a first direction and a second direction perpendicular to the first direction, such that their opposing sides are parallel; (d) the opening ratio of the intake flow paths being 45-60%; (e) the number of the flow paths per cm2 being 30-60; (f) the thickness t1 of a cell wall between an intake flow path and a discharge flow path adjacent to that intake flow path being 0.150-0.260 mm; and (g) the thickness t2 of a cell wall between adjacent intake flow paths meeting 1.175<t2/t1<1.6.
    Type: Grant
    Filed: July 30, 2020
    Date of Patent: April 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventor: Tomohisa Ogata
  • Patent number: 11952651
    Abstract: An Fe-based amorphous alloy ribbon reduced in iron loss, less deformed, and highly productive in a condition of a magnetic flux density of 1.45 T is provided. One aspect of the present disclosure provides an Fe-based amorphous alloy ribbon having first and second surfaces, and is provided with continuous linear laser irradiation marks on at least the first surface. Each linear laser irradiation mark is formed along a direction orthogonal to a casting direction of the Fe-based amorphous alloy ribbon, and has unevenness on its surface. When the unevenness is evaluated in the casting direction, a height difference HL×width WA calculated from the height difference between a highest point and a lowest point in a thickness direction of the Fe-based amorphous alloy ribbon and the width WA which is a length of the linear irradiation mark on the first surface is 6.0 to 180 ?m2.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: April 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Hajime Itagaki, Morifumi Kuroki, Makoto Sasaki, Shin Nakajima
  • Publication number: 20240112854
    Abstract: A method for recycling a rare earth element-containing powder, including: disintegrating a molded body for a rare earth sintered magnet including a rare earth element-containing powder in oil such that a 149 mesh-pass, 500 mesh-on powder is included; and separating and collecting a 149 mesh-pass powder obtained after the disintegrating to obtain a recycles powder.
    Type: Application
    Filed: September 28, 2023
    Publication date: April 4, 2024
    Applicant: PROTERIAL, LTD.
    Inventors: Takahiro YOMOGITA, Futoshi KUNIYOSHI
  • Patent number: 11946924
    Abstract: A crosslinked fluoropolymer resin is configured to include a measuring step of irradiating a surface of the crosslinked fluoropolymer resin with a laser to measure a Raman spectrum, and an acceptance or rejection decision step of determining an acceptance or a rejection of a quality of a measurement region irradiated with the laser, on the basis of an intensity of a fluorescence spectrum relative to an intensity of a Raman scattering peak, which is ascribed to a CF2 stretching vibration, in the measured Raman spectrum.
    Type: Grant
    Filed: January 19, 2021
    Date of Patent: April 2, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Kazufumi Suenaga, Koki Hirano, Kenta Kimura
  • Patent number: 11942234
    Abstract: A coaxial cable is composed of a conductor, an insulator covering a periphery of the conductor, a shield layer covering a periphery of the insulator, and a sheath covering a periphery of the shield layer. The shield layer is configured to include a lateral winding shielding portion with a plurality of metal wires being helically wrapped around the periphery of the insulator, and a batch plating portion made of a hot-dip plating covering respective peripheries of the lateral winding shielding portion. The shield layer includes a joining portion where the metal wires adjacent to each other in a circumferential direction are joined with each other with the batch plating portion at a spaced portion where the adjacent metal wires are spaced apart from each other, and the non-joining portion where the metal wires adjacent to each other in the circumferential direction are not joined with each other with the batch plating portion at the spaced portion.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: March 26, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Detian Huang, Takanobu Watanabe, Hiromitsu Kuroda, Hideki Nonen
  • Patent number: 11931821
    Abstract: A magnesium clad material 100 includes, when a cross-section thereof cut in a thickness direction thereof is observed, a Mg layer (11), a first Al layer (12) made of pure Al or an Al alloy, and a first joint (13) made of pure Cu or a Cu alloy and arranged between the Mg layer and the first Al layer, and the magnesium clad material has a 0.2% proof stress of 150 MPa or more as measured in a tensile test under a room temperature atmosphere.
    Type: Grant
    Filed: March 6, 2020
    Date of Patent: March 19, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Satoshi Okura, Ryoji Inoue
  • Patent number: 11934360
    Abstract: A database storing data associated with an identifier unique to each sample, the data including first data representative of at least one of composition data, processing data, and property data for the each sample, and second data representative of microstructure data for the each sample. The microstructure data includes a feature determined based on a temperature dependence of magnetization for the each sample.
    Type: Grant
    Filed: June 5, 2023
    Date of Patent: March 19, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Takeshi Nishiuchi, Daisuke Furusawa, Asami Oya
  • Patent number: 11923104
    Abstract: A cable includes a cable core including one or more electric wires, a shield layer covering around the cable core, and a sheath covering around the shield layer. The shield layer is composed of a braided shield including a plurality of first metal wires composed of aluminum or aluminum alloy and a plurality of second metal wires composed of copper or copper alloy. The plurality of first metal wires and the plurality of second metal wires are cross-braided.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: March 5, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Detian Huang, Yoshinori Tsukamoto, Masanori Kobayashi, Masashi Moriyama, Koji Fukuzato
  • Patent number: 11918759
    Abstract: A medical braided tube assembly includes a braided tube including a hollow cylindrical inner resin layer, a braided wire including braided strands and being provided over a periphery of the inner resin layer, and an outer resin layer provided to cover peripheries of the inner resin layer and the braided wire, and a connector provided at an end portion of the braided tube. The connector includes a tube housing section for accommodating the end portion of the braided tube. The braided tube accommodated in the tube housing section are adhesively fixed by an adhesive. The adhesive is provided to seal an entire periphery of the braided wire at an end face of the braided tube.
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: March 5, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Kotaro Tanaka, Takanobu Watanabe, Kimika Kudo, Takanori Komuro
  • Patent number: 11919065
    Abstract: Described herein are methods for producing a hot forged material in air using a Ni-based superalloy for the die. Also described herein are methods for producing a hot forged material, by placing on a lower die a material for hot forging, of which part or all of the surface is coated with a glass-based lubricant, and pressing the material for hot forging with the lower die and an upper die, to form a hot forged material, wherein one or both of the lower die and the upper die are made of a Ni-based superalloy, and wherein the surface of the die in contact with the material for hot forging is coated with a glass-based lubricant containing SiO2 as a main component, in which the total content of alkali metal oxides is 0 to 10.0% in mass %.
    Type: Grant
    Filed: December 21, 2017
    Date of Patent: March 5, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Shogo Suzuki, Tomonori Ueno
  • Publication number: 20240051022
    Abstract: A method for producing conductive metal particles. The method includes: mixing a first aqueous solution containing Ni and NaOH with a second aqueous solution containing P to prepare a third aqueous solution with a pH greater than 7; and inducing a reductive deposition reaction in the third aqueous solution to produce Ni-based conductive metal materials, in which the median diameter (d50) of the conductive metal particles is regulated by adjusting the concentration of NaOH in the third aqueous solution.
    Type: Application
    Filed: March 23, 2022
    Publication date: February 15, 2024
    Applicant: PROTERIAL, LTD.
    Inventor: Hidehito MORI
  • Patent number: 11891535
    Abstract: A coating film is provided in a cable, a medical hollow tube, a molded article and a hollow tube. The coating film is formed from a rubber composition including a rubber component and fine particles. A static friction coefficient on a surface of the coating film is 0.5 or less. When the coating film is subjected to a testing such that a long fiber non-woven fabric including cotton linters including an alcohol for disinfection with a length of 50 mm along a wiping direction is brought contiguous to the surface of the coating film at a shearing stress of 2×10?3 MPa to 4×10?3 MPa, followed by wiping off the surface of the coating film at a speed of 80 times/min to 120 times/min and 20,000 repetitions thereof for a wiping direction length of 150 mm, a difference (an absolute value of a difference) between the static friction coefficients of the coating film before and after the testing is not greater than 0.1.
    Type: Grant
    Filed: January 26, 2022
    Date of Patent: February 6, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Seiichi Kashimura, Masamichi Kishi, Naoto Teraki, Takanobu Watanabe, Yuriko Kiyokane
  • Patent number: 11890665
    Abstract: Provided is a metal gasket including, expressed in mass%, C: 0.10% or less, Si: 1.0% or less, Mn: 2.0% or less, P: 0.04% or less (including 0%), S: 0.01% or less (including 0%), Ni: 25.0-60.0%, Cr: 10.0-20.0%, either Mo or W alone, or both Mo+W/2: 0.05-5.0%, Al: more than 0.8% to 3.0% or less, Ti: 1.5-4.0%, Nb: 0.05-2.5%, V: 1.0% or less (including 0%), B: 0.001-0.015%, Mg: 0.0005-0.01%, S/Mg: 1.0 or less, N: 0.01% or less (including 0%), and O: 0.005% or less (including 0%), with the remainder being Fe and unavoidable impurities. The metal gasket has a metal structure in which a precipitate ?? phase having an average equivalent circle diameter of 25 nm or larger is not present within the austenite base.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: February 6, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Toshihiro Uehara, Junichi Nishida
  • Publication number: 20240034685
    Abstract: A silicon carbide ceramic honeycomb structure having large numbers of axially penetrating flow paths partitioned by porous silicon carbide cell walls, the cell walls having porosity of 35-50% and a median pore diameter of 8-18 ?m, when a straight line C is drawn in parallel with the cell wall surface such that it passes a center in the direction of the thickness T of the cell wall, and straight lines are drawn in parallel with the straight line C such that they are separate from the straight line C by ±T/5 and ±2T/5 in the thickness direction of the cell wall, to measure the lengths (pore widths) of pore portions crossing each straight line, and the number of pores crossing each straight line, in a cell wall cross section perpendicular to the axial direction, an average pore width W determined by averaging the lengths (pore widths) of all measured pore portions being 10-25 ?m, and the number N of pores per length determined by dividing the total number of the measured pores by the total length of the straight
    Type: Application
    Filed: March 23, 2022
    Publication date: February 1, 2024
    Applicant: PROTERIAL, LTD.
    Inventor: Kenichiro SHIMIZU
  • Patent number: 11883880
    Abstract: The present invention provides an alloy, an alloy powder, an alloy member, and a composite member which are excellent in corrosion resistance and wear resistance, have crack resistance, and are suitable for an additive manufacturing method and the like. An alloy and an alloy powder include, by mass %, Cr: 18 to 22%, Mo: 18 to 28%, Ta: 1.5 to 57%, C: 1.0 to 2.5%, Nb: 0 to 42%, Ti: 0 to 15%, V: 0 to 27%, Zr: 0 to 29%, and a remainder consisting of Ni and unavoidable impurities, where a molar ratio of (Ta+0.7Nb+Ti+0.6V+Zr)/C=0.5 to 1.5 is satisfied. An alloy member is an additively manufactured product or a cast having such a solidification structure, and the solidification structure is a dendrite-like crystal structure having a metal phase having a face-centered cubic structure and carbides.
    Type: Grant
    Filed: March 31, 2021
    Date of Patent: January 30, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Hiroshi Shiratori, Kazuya Shinagawa, Kousuke Kuwabara, Shuho Koseki
  • Patent number: 11875922
    Abstract: An insulated electric wire is composed of a conductor, and a covering layer disposed around an outer circumference of the conductor. The covering layer has a plurality of flame retardant layers composed of a flame retardant resin composition, and an insulating layer interposed between the plurality of flame retardant layers. The insulating layer is made of a resin composition including a resin component, and the resin component includes 40% by mass or more of a resin having a melting point of 125 degrees C. or higher of 100% by mass of the resin component.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: January 16, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Tamotsu Kibe, Motoharu Kajiyama, Masafumi Kaga
  • Patent number: 11870237
    Abstract: A surge suppression circuit is used in a rotating electrical machine system including a switching circuit composed of a plurality of switching elements and a rotating electrical machine connected thereto via an electrically conducting path comprising a plurality of electrically conductive bodies. The surge suppression circuit suppresses surge voltage generated in a plurality of connecting lines connecting the plurality of electrically conductive bodies to windings of plural phases of the rotating electrical machine. The surge suppression circuit includes a plurality of upper diodes with anodes respectively connected to the plurality of connection lines, a plurality of lower diodes with cathodes respectively connected to the plurality of connection lines, an upper line connected to respective cathodes of the plurality of upper diodes, a lower line connected to respective anodes of the plurality of lower diodes, and a voltage holding circuit connected between the upper line and the lower line.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Yuta Sugiyama, Haruyasu Komano
  • Patent number: 11870245
    Abstract: A surge suppression device includes a plurality of series circuits each of which is composed of a resistor and a capacitor, a case in which a plurality of the resistors and a plurality of the capacitors are placed, wherein respective ends of the plurality of series circuits on the capacitor side are electrically connected to each other via a connection electrode provided on the case. A motor wiring component includes a plurality of conductive wires connected to stator coils of the motor, wiring terminals that are provided at ends of the plurality of conductive wires on a side opposite to the side connected to the stator coils and are connected to electrodes of a terminal block, and the surge suppression device.
    Type: Grant
    Filed: February 22, 2022
    Date of Patent: January 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventor: Keisuke Fukuchi
  • Patent number: 11866798
    Abstract: Provided is a method for manufacturing a magnetostrictive torque sensor shaft mounting a sensor portion of a magnetostrictive torque sensor. The method includes conducting heat treatment on a shaft material including chrome steel or chrome-molybdenum steel by carburizing, quenching and tempering, and conducting shot peening on the shaft material after the heat treatment at least on a position where the sensor portion is to be mounted. The shot peening is conducted by firing shot with a particle size of not less than 0.6 mm and a Rockwell hardness of not less than 60 at a jet pressure of not less than 0.4 MPa for a jet exposure time of not less than 2 minutes.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: January 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventor: Teruyuki Nakamura
  • Patent number: 11867717
    Abstract: An air gap of a rotation speed sensor is increased. A rotation speed sensor according to one embodiment includes: a sensor component having magnetic sensing elements; and a magnetic plate that is arranged between the sensor component and a magnet and that is made of a magnetic material. In a first direction that is a direction in which the sensor component, the magnetic plate and the magnet are arranged, the magnetic plate includes an opening that is formed at a position overlapping center of a line connecting respective centers of the magnetic sensing elements.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: January 9, 2024
    Assignee: PROTERIAL, LTD.
    Inventors: Kazuhiko Tomita, Kento Okuyama, Kei Kawano