Patents by Inventor Kazuo Maeda

Kazuo Maeda 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: 20230093307
    Abstract: A thermally conductive material contains a base resin and a filler, the filler contains a thermally conductive filler and a hollow filler composed of particles including a gas layer, a content of the filler is 20.0% by volume or more and 90.0% by volume or less based on a total material amount, and a content of the hollow filler is 25.0% by volume or more and 70.0% by volume or less based on a total amount of the filler. A wiring harness is provided with an insulated wire composed of an insulation coating and a conductor, an exterior material, the insulated wire being inserted in the exterior material, and a heat dissipation material to be arranged between the insulated wire and the exterior material, and the heat dissipation material is made of the thermally conductive material.
    Type: Application
    Filed: January 25, 2021
    Publication date: March 23, 2023
    Inventors: Takashi KAWAKAMI, Kazuo NAKASHIMA, Yusaku MAEDA
  • Publication number: 20230070409
    Abstract: A thermally conductive material contains a base resin and an insulating filler, the insulating filler contains a thermally conductive filler and a hollow filler composed of particles including a gas layer, a content of the insulating filler is 20.0% by volume or more and 90.0% by volume or less based on a total material amount, and a content of the hollow filler is 25.0% by volume or more and 70.0% by volume or less based on a total amount of the insulating filler. A wiring harness is provided with an insulated wire composed of an insulation coating and a conductor, an exterior material, the insulated wire being inserted in the exterior material, and a heat dissipation material to be arranged between the insulated wire and the exterior material, and the heat dissipation material is made of the thermally conductive material.
    Type: Application
    Filed: January 25, 2021
    Publication date: March 9, 2023
    Inventors: Takashi KAWAKAMI, Kazuo NAKASHIMA, Yusaku MAEDA
  • Publication number: 20230047707
    Abstract: A thermally conductive filler capable of exhibiting high thermal conductive properties with its specific gravity being reduced, a thermally conductive composite material and a wire harness that contains such a thermally conductive filler, and a method for forming a thermally conductive filler that can be used to form such a thermally conductive filler. A thermally conductive filler includes a hollow particle having a polar group on its surface, and a thermally conductive layer containing an inorganic compound that covers the surface of the hollow particle. Also, a thermally conductive composite material contains the thermally conductive filler and a matrix material, the thermally conductive filler being dispersed in the matrix material. Furthermore, a wire harness contains the thermally conductive composite material.
    Type: Application
    Filed: December 4, 2020
    Publication date: February 16, 2023
    Applicants: AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD., KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION
    Inventors: Naoyuki OSHIUMI, Takehiro HOSOKAWA, Kazuo NAKASHIMA, Takashi KAWAKAMI, Yusaku MAEDA, Makoto MIZOGUCHI
  • Publication number: 20230040050
    Abstract: A hot-stamping formed body has a predetermined chemical composition and includes microstructure which includes residual austenite of which an area ratio is in a range of 20% to 30%. Among grain boundaries of crystal grains of bainite and tempered martensite in the microstructure, a ratio of a length of a grain boundary having a rotation angle in a range of 55° to 75° to a total length of a grain boundary having a rotation angle in a range of 4° to 12°, a grain boundary having a rotation angle in a range of 49° to 54°, and a grain boundary having a rotation angle in a range of 55° to 75° to the <011> direction as a rotation axis is 30% or more.
    Type: Application
    Filed: January 8, 2021
    Publication date: February 9, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yuri TODA, Kodai MURASAWA, Daisuke MAEDA, Kazuo HIKIDA
  • Publication number: 20230001466
    Abstract: A hot-stamping formed body has a predetermined chemical composition and includes microstructure which includes residual austenite of which an area ratio is 10% or more and less than 20%, Among grain boundaries of crystal grains of bainite and tempered martensite a ratio of a length of a grain boundary having a rotation angle in a range of 55° to 75° to a total length of a grain boundary having a rotation angle in a range of 4° to 12°, a grain boundary having a rotation angle in a range of 49° to 54°, and the grain boundary having a rotation angle in, a range of 55° to 75° to the <011> direction as a rotation axis is 30% or more.
    Type: Application
    Filed: January 8, 2021
    Publication date: January 5, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yuri TODA, Kodai MURASAWA, Daisuke MAEDA, Kazuo HIKIDA
  • Publication number: 20230002874
    Abstract: A hot-stamping formed body has a predetermined chemical composition and includes microstructure which includes residual austenite of which an area ratio is 5% or more and less than 10%. Among grain boundaries of crystal grains of bainite and tempered martensite in the microstructure, a ratio of a length of a grain boundary having a rotation angle in a range of 55° to 75° to a total length of a grain boundary having a rotation angle in a range of 4° to 12°, a grain boundary having a rotation angle in a range of 49° to 54°, and a grain boundary having a rotation angle in a range of 55° to 75° to the <011> direction as a rotation axis is 30% or more. The tensile strength of the hot-stamping formed body is 1500 MPa or more.
    Type: Application
    Filed: January 8, 2021
    Publication date: January 5, 2023
    Applicant: NIPPON STEEL CORPORATION
    Inventors: Yuri TODA, Shinichiro TABATA, Kodai MURASAWA, Daisuke MAEDA, Kazuo HIKIDA
  • Publication number: 20220342390
    Abstract: A processing system comprises a tool that processes a workpiece composed of a metal member, a motor that rotates the workpiece or the tool, a control unit that controls the motor, and a measurement unit that obtains an electrical quantity of the motor, wherein the control unit changes a rotational speed of the motor based on a difference between a first electrical quantity and a second electrical quantity, the first electrical quantity is an electrical quantity obtained by the measurement unit while the motor rotates before the workpiece is processed, and the second electrical quantity is an electrical quantity obtained by the measurement unit while the workpiece is processed.
    Type: Application
    Filed: August 31, 2020
    Publication date: October 27, 2022
    Applicant: Sumitomo Electric Sintered Alloy, Ltd.
    Inventor: Kazuo MAEDA
  • Publication number: 20220331924
    Abstract: A first plate includes: a first hole penetrating a first front surface and a first back surface; an opening edge constituting the first hole, a front-side first opening edge being provided in the first front surface; a back-side first opening edge constituting the first hole, the back-side first opening edge being provided in the first back surface; and a first chamfered portion provided on at least one of the front-side first opening edge and the back-side first opening edge, a second plate includes: a second hole including a back-side second opening edge provided in at least a second back surface; and a back-side second chamfered portion provided at the back-side second opening edge, an axis of the first hole and an axis of the second hole are coaxial, and the at least one of the first chamfered portion and the back-side second chamfered portion have a cutting mark.
    Type: Application
    Filed: September 4, 2020
    Publication date: October 20, 2022
    Applicant: Sumitomo Electric Sintered Alloy, Ltd.
    Inventor: Kazuo MAEDA
  • Patent number: 11458546
    Abstract: The throwaway insert includes a base and a cutting edge member. The cutting edge member includes a rake face, a flank face, a first connecting face, a second connecting face, and a first ridgeline serving as a cutting edge. The rake face includes a main surface and a first chamfer provided at an edge tip portion of the cutting edge member, the edge tip portion including an extreme tip portion of the cutting edge member. In a plan view from an upper surface of the base, the flank face, the first connecting face, and the second connecting face are located external to the base. The first chamfer is inclined relative to the main surface so as to increase a thickness of the cutting edge member as the first chamfer is closer to the main surface.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: October 4, 2022
    Assignee: Sumitomo Electric Sintered Alloy, Ltd.
    Inventor: Kazuo Maeda
  • Publication number: 20220097784
    Abstract: A shaft has an outer circumferential surface provided with a recessed portion in which a cooling medium is accommodated. A roller is rotatable relative to the outer circumferential surface of the shaft. A radial sliding bearing supports the roller to be rotatable relative to the outer circumferential surface of the shaft. A floating seal includes a rotating-side member that is supported by the roller and a fixed-side member that slides together with the rotating-side member. In a radial direction of the shaft, the recessed portion faces: a sliding portion between the rotating-side member and the fixed-side member in the floating seal: and the radial sliding bearing.
    Type: Application
    Filed: April 8, 2020
    Publication date: March 31, 2022
    Applicant: KOMATSU LTD.
    Inventors: Masahiko TANIGUCHI, Noriyuki KITAI, Kazuo MAEDA
  • Publication number: 20220025475
    Abstract: A ripper shank as the impact and wear resistant component is made of a steel of a specific component composition which has a hardness of HRC 53 or more and HRC 57 or less. The steel includes a matrix including a martensite phase and a residual austenite phase, and first nonmetallic particles dispersed in the matrix and including at least one species selected from the group consisting of MnS, TiCN, and NbCN. The steel does not include a M23C6 carbide.
    Type: Application
    Filed: December 26, 2019
    Publication date: January 27, 2022
    Applicants: KOMATSU LTD., NIPPON STEEL CORPORATION
    Inventors: Eiji AMADA, Kouji KITAMURA, Kazuo MAEDA, Naomi KOBAYASHI, Takashi NODA, Mamoru HATANO, Takafumi AMATA, Yutaka NEISHI, Kei MIYANISHI, Ryoji NISHIJIMA, Daisuke TAKIGUCHI
  • Patent number: 11162152
    Abstract: A bearing bushing for a track has an annular shape including an inner peripheral surface, an outer peripheral surface, a first end face, and a second end face located axially opposite the first end face. The bearing bushing for a track includes an inner peripheral surface-side hardened layer formed to include the inner peripheral surface, an outer peripheral surface-side hardened layer formed to include the outer peripheral surface, a first end face-side hardened layer formed to include the first end face and having a region with a hardness of 63 HRC or more that has a thickness of 3 mm or more from the first end face, and an unhardened region lower in hardness than the inner peripheral surface-side hardened layer, the outer peripheral surface-side hardened layer, and the first end face-side hardened layer, and including at least the second end face. The bearing bushing is made of steel.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: November 2, 2021
    Assignee: KOMATSU LTD.
    Inventors: Yusuke Kondo, Kazuo Maeda, Eiji Amada
  • Publication number: 20210316801
    Abstract: A track link which is a tracked undercarriage component is made of a steel having a specific component composition, and includes a high hardness portion having a hardness of HRC 57 or more and HRC 60 or less, and a low hardness portion. The high hardness portion includes a first matrix including a martensite phase and a residual austenite phase, and first nonmetallic particles dispersed in the first matrix and including at least one species selected from the group consisting of MnS, TiCN, and NbCN, and it does not include a M23C6 carbide. The low hardness portion includes a second matrix including a martensite phase, and second nonmetallic particles dispersed in the second matrix and including at least one species selected from the group consisting of MnS, TiCN, and NbCN, and it does not include a M23C6 carbide.
    Type: Application
    Filed: August 22, 2019
    Publication date: October 14, 2021
    Applicants: KOMATSU LTD., NIPPON STEEL CORPORATION
    Inventors: Eiji AMADA, Kazuo MAEDA, Naomi KOBAYASHI, Takashi NODA, Mamoru HATANO, Takafumi AMATA, Yutaka NEISHI, Kei MIYANISHI, Ryoji NISHIJIMA
  • Patent number: 11040401
    Abstract: A throwaway insert includes a base and a cutting edge member. The cutting edge member includes: a rake face; a flank face extending to cross the rake face; a first connecting face connecting the flank face to a side surface of the base and extending to cross the rake face; and a first ridgeline formed by the rake face and the flank face and serving as a cutting edge. When viewed in a plan view from the upper surface of the base, the flank face and the first connecting face are located external to the base. A second ridgeline formed by the rake face and the first connecting face crosses the first ridgeline at an obtuse angle.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: June 22, 2021
    Assignee: Sumitomo Electric Sintered Alloy, Ltd.
    Inventor: Kazuo Maeda
  • Patent number: 10965498
    Abstract: Provided is a communication relay apparatus configured to relay communication between a plurality of segments of a network by a plurality of communication devices including an indoor unit and an outdoor unit connected to one another via the network, the communication relay apparatus including a relay setting unit configured to set a first mode value corresponding to processing of relaying all frames and a second mode value corresponding to processing of relaying a frame on the basis of a destination address of the frame, and a relay determination unit configured to perform processing of relaying the frame in an operation mode corresponding to a relay mode value set by the relay setting unit.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 30, 2021
    Assignee: Mitsubishi Electric Corporation
    Inventors: Katsuhiro Hirose, Kazuo Maeda, Koji Rikukawa, Jun Someya
  • Patent number: 10598400
    Abstract: A remote control device according to the present invention includes an operation unit for switching and setting an operation state of an apparatus performing at least one of a heating operation and a cooling operation, a display unit that displays a screen on which an operation at the operation unit is reflected, and a controller that controls a display operation of the display unit. The controller causes the display unit to display at least one of a type and a range of an operation state that is able to be switched and set by the operation unit.
    Type: Grant
    Filed: October 9, 2013
    Date of Patent: March 24, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Nobuyuki Saiki, Kazuo Maeda, Masaoki Ino, Masatoshi Kawamura, Yuki Hanaeda
  • Publication number: 20200009663
    Abstract: The throwaway insert includes a base and a cutting edge member. The cutting edge member includes a rake face, a flank face, a first connecting face, a second connecting face, and a first ridgeline serving as a cutting edge. The rake face includes a main surface and a first chamfer provided at an edge tip portion of the cutting edge member, the edge tip portion including an extreme tip portion of the cutting edge member. In a plan view from an upper surface of the base, the flank face, the first connecting face, and the second connecting face are located external to the base. The first chamfer is inclined relative to the main surface so as to increase a thickness of the cutting edge member as the first chamfer is closer to the main surface.
    Type: Application
    Filed: February 2, 2017
    Publication date: January 9, 2020
    Applicant: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventor: Kazuo Maeda
  • Publication number: 20190316220
    Abstract: A bearing bushing for a track has an annular shape including an inner peripheral surface, an outer peripheral surface, a first end face, and a second end face located axially opposite the first end face. The bearing bushing for a track includes an inner peripheral surface-side hardened layer formed to include the inner peripheral surface, an outer peripheral surface-side hardened layer formed to include the outer peripheral surface, a first end face-side hardened layer formed to include the first end face and having a region with a hardness of 63 HRC or more that has a thickness of 3 mm or more from the first end face, and an unhardened region lower in hardness than the inner peripheral surface-side hardened layer, the outer peripheral surface-side hardened layer, and the first end face-side hardened layer, and including at least the second end face. The bearing bushing is made of steel.
    Type: Application
    Filed: December 20, 2017
    Publication date: October 17, 2019
    Applicant: KOMATSU LTD.
    Inventors: Yusuke KONDO, Kazuo MAEDA, Eiji AMADA
  • Patent number: D862540
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: October 8, 2019
    Assignee: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventor: Kazuo Maeda
  • Patent number: D862542
    Type: Grant
    Filed: September 24, 2018
    Date of Patent: October 8, 2019
    Assignee: SUMITOMO ELECTRIC SINTERED ALLOY, LTD.
    Inventor: Kazuo Maeda