Patents by Inventor Yoshinori Izawa

Yoshinori Izawa 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).

  • Patent number: 11187116
    Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes an inorganic part derived from at least one type of inorganic particles selected from the group consisting of iron base alloy particles, cobalt base alloy particles, chromium base alloy particles, nickel base alloy particles, molybdenum base alloy particles, and ceramic particles, and a metal part derived from at least one type of metal particles selected from the group consisting of iron base alloy particles other than listed in the above group, copper particles, and copper alloy particles. The inorganic part is bonded to another inorganic part and/or the metal part via interfaces therebetween, and the metal part is bonded to another metal part and/or the inorganic part via interfaces therebetween.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: November 30, 2021
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Yoshinori Izawa
  • Publication number: 20210324913
    Abstract: A sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate, and the particle aggregate contains two or more kinds of precipitation hardened copper alloy particles that have different compositions. The sliding member has high coating strength and superior wear resistance.
    Type: Application
    Filed: June 13, 2019
    Publication date: October 21, 2021
    Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
  • Patent number: 11148195
    Abstract: A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape. A sliding member includes the laminate in at least one sliding portion. A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: October 19, 2021
    Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori Izawa, Junichi Arai, Yutaka Mabuchi, Katsunori Otobe, Shinichi Nishimura
  • Publication number: 20210293274
    Abstract: A sliding member of the present invention includes a base material and a coating layer that is formed on the base material. The coating layer includes a particle aggregate that contains precipitation hardened copper alloy particles. The precipitation hardened copper alloy particles contain cobalt (Co) and silicon (Si) The sliding member has high coating strength and superior wear resistance.
    Type: Application
    Filed: June 19, 2019
    Publication date: September 23, 2021
    Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
  • Publication number: 20210293158
    Abstract: A sliding member of the present invention includes a coating on a base material. The coating contains hard metal particles and corrosion-resistant metal particles that have hardness lower than that of the hard metal particles. The hard metal particles contain particles that have at least Vickers hardness of 600 Hv or higher. The corrosion-resistant metal particles are made of at least one kind of metal selected from the group consisting of copper (Cu), cobalt (Co), chromium (Cr), and nickel (Ni), or are made of an alloy containing said metal. The coating has a cross section in which the hard metal particles are dispersed in an island manner in a particle aggregate of the corrosion-resistant metal particles and in which an area ratio of the corrosion-resistant metal particles is 30% or larger. Thus, corrosion of the hard metal particles in the coating is prevented, whereby the sliding member maintains wear resistance for a long time.
    Type: Application
    Filed: July 19, 2018
    Publication date: September 23, 2021
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yoshinori IZAWA, Yutaka MABUCHI, Akinobu ITOU, Junichi ARAI, Misao MOGAMI, Masanao HARADA, Moriyuki NOGAMI
  • Publication number: 20210291263
    Abstract: A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape. A sliding member includes the laminate in at least one sliding portion. A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.
    Type: Application
    Filed: June 3, 2021
    Publication date: September 23, 2021
    Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
  • Patent number: 10982622
    Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes a steel portion derived from austenitic stainless steel particles and a copper portion derived from copper particles or copper alloy particles. The steel portion and the copper portion are bonded to each other via an interface between the steel portion and the copper portion.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: April 20, 2021
    Assignees: NISSAN MOTOR CO., LTD., RENAULT S.A.S.
    Inventors: Yoshinori Izawa, Yutaka Mabuchi, Junichi Arai, Christian Grente, Elodie Bonay, Carolina Specht, Jean Marie Mahlaire
  • Patent number: 10927893
    Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes a copper alloy part derived from a plurality of precipitation hardening copper alloy particles. The copper alloy parts are bonded to each other via interfaces between the copper alloy parts. The copper alloy part contains nickel and silicon as additive elements. The copper alloy part contains 2 to 5 percent by mass of nickel. A sliding member for an internal combustion engine includes the sliding member at a sliding part of the internal combustion engine.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: February 23, 2021
    Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori Izawa, Junichi Arai, Katsunori Otobe, Shinichi Nishimura
  • Patent number: 10745809
    Abstract: A method for producing a laminated member includes a step of spraying a mixture in a non-molten state including a plurality of precipitation hardening copper alloy particles and a plurality of hard particles that have non-spherical shapes having a median aspect ratio of equal to or more than 1.2 and are harder than the copper alloy particles onto a base substrate to form a coating layer on the base substrate.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: August 18, 2020
    Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori Izawa, Junichi Arai, Yutaka Mabuchi, Katsunori Otobe, Shinichi Nishimura
  • Publication number: 20200248647
    Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes a steel portion derived from austenitic stainless steel particles and a copper portion derived from copper particles or copper alloy particles. The steel portion and the copper portion are bonded to each other via an interface between the steel portion and the copper portion.
    Type: Application
    Filed: February 2, 2018
    Publication date: August 6, 2020
    Applicants: NISSAN MOTOR CO., LTD., RENAULT s.a.s.
    Inventors: Yoshinori IZAWA, Yutaka MABUCHI, Junichi ARAI, Christian GRENTE, Elodie BONAY, Carolina SPECHT, Jean Marie MAHLAIRE
  • Patent number: 10590812
    Abstract: A sliding mechanism 1 includes a first sliding member 10 and a partner second sliding member 20 configured to slide relative to the first sliding member 10. The first sliding member 10 includes a matrix phase 11 and a hard phase 13 that is harder than the matrix phase 11, in which the hard phase 13 is embedded in the matrix phase 11 in a dispersed state. The second sliding member 20 includes a base 21 and a surface-treatment layer 23 that is formed on the sliding surface 20 of the base 21 and is harder than the matrix phase 11.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: March 17, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yoshinori Izawa, Yutaka Mabuchi
  • Publication number: 20200011211
    Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes a copper alloy part derived from a plurality of precipitation hardening copper alloy particles. The copper alloy parts are bonded to each other via interfaces between the copper alloy parts. The copper alloy part contains nickel and silicon as additive elements. The copper alloy part contains 2 to 5 percent by mass of nickel. A sliding member for an internal combustion engine includes the sliding member at a sliding part of the internal combustion engine.
    Type: Application
    Filed: February 2, 2018
    Publication date: January 9, 2020
    Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
  • Publication number: 20200011216
    Abstract: A sliding member includes a base substrate and a coating layer formed on the base substrate. The coating layer includes an inorganic part derived from at least one type of inorganic particles selected from the group consisting of iron base alloy particles, cobalt base alloy particles, chromium base alloy particles, nickel base alloy particles, molybdenum base alloy particles, and ceramic particles, and a metal part derived from at least one type of metal particles selected from the group consisting of iron base alloy particles other than listed in the above group, copper particles, and copper alloy particles. The inorganic part is bonded to another inorganic part and/or the metal part via interfaces therebetween, and the metal part is bonded to another metal part and/or the inorganic part via interfaces therebetween.
    Type: Application
    Filed: February 2, 2018
    Publication date: January 9, 2020
    Applicant: Nissan Motor Co., Ltd.
    Inventor: Yoshinori Izawa
  • Publication number: 20190368049
    Abstract: A method for producing a laminated member includes a step of spraying a mixture in a non-molten state including a plurality of precipitation hardening copper alloy particles and a plurality of hard particles that have non-spherical shapes having a median aspect ratio of equal to or more than 1.2 and are harder than the copper alloy particles onto a base substrate to form a coating layer on the base substrate.
    Type: Application
    Filed: February 2, 2018
    Publication date: December 5, 2019
    Applicants: NISSAN MOTOR CO,, LTD., FUKUDA METAL FOIL & POWDER CO., LTD.
    Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
  • Publication number: 20190344338
    Abstract: A laminate includes a base substrate, and a coating layer formed on the base substrate. The coating layer includes a copper alloy portions derived from precipitation-hardening copper alloy particles and hard particle portions which are harder than the copper alloy portions, the hard particle portions are derived from hard particles, and the parts bond with each other via an interface. Each of the hard particle portions has a non-spherical shape. A sliding member includes the laminate in at least one sliding portion. A method for manufacturing a laminate includes a step of spraying a mixture in a non-molten state including precipitation-hardening copper alloy particles and hard particles having a non-spherical shape and being harder than the copper alloy particles onto a base substrate, to form a coating layer on the base substrate.
    Type: Application
    Filed: February 2, 2018
    Publication date: November 14, 2019
    Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWER CO., LTD.
    Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
  • Patent number: 10364844
    Abstract: The sliding member includes a base and a coating layer formed on the base, in which the coating layer includes a particle aggregate containing first particles of a precipitation-hardening copper alloy. The method for manufacturing the sliding member includes the step of spraying a first powder of the precipitation-hardening copper alloy or a mixed powder containing the first powder and a second powder harder than the first powder onto the base in an unmelted state, so as to form the coating layer on the base.
    Type: Grant
    Filed: July 21, 2016
    Date of Patent: July 30, 2019
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Yoshinori Izawa
  • Publication number: 20180223902
    Abstract: The sliding member includes a base and a coating layer formed on the base, in which the coating layer includes a particle aggregate containing first particles of a precipitation-hardening copper alloy. The method for manufacturing the sliding member includes the step of spraying a first powder of the precipitation-hardening copper alloy or a mixed powder containing the first powder and a second powder harder than the first powder onto the base in an un melted state, so as to form the coating layer on the base.
    Type: Application
    Filed: July 21, 2016
    Publication date: August 9, 2018
    Applicant: NISSAN MOTOR CO., LTD.
    Inventor: Yoshinori IZAWA
  • Patent number: 9796150
    Abstract: A field-pole magnet manufacturing apparatus manufactures magnet pieces that constitute a field-pole magnet arranged in a rotary electric machine by fracturing the magnet. This manufacturing apparatus includes: a support unit on which the magnet is placed; a fracture unit that is arranged opposite to the support unit across the magnet and is configured to fracture the magnet by pressing the magnet while in contact with the magnet; and a powder removal unit that is configured to remove crush powder produced by fracture of the magnet.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: October 24, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Yasuhisa Koike, Kimio Nishimura, Hiroharu Takeuchi, Kunitomo Ishiguro, Kiyoshi Hasegawa, Yoshinori Izawa
  • Publication number: 20160348545
    Abstract: A sliding mechanism 1 includes a first sliding member 10 and a partner second sliding member 20 configured to slide relative to the first sliding member 10. The first sliding member 10 includes a matrix phase 11 and a hard phase 13 that is harder than the matrix phase 11, in which the hard phase 13 is embedded in the matrix phase 11 in a dispersed state. The second sliding member 20 includes a base 21 and a surface-treatment layer 23 that is formed on the sliding surface 20 of the base 21 and is harder than the matrix phase 11.
    Type: Application
    Filed: January 16, 2015
    Publication date: December 1, 2016
    Applicant: NISSAN MOTOR CO., LTD.
    Inventors: Yoshinori IZAWA, Yutaka MABUCHI
  • Publication number: 20140144337
    Abstract: A field-pole magnet manufacturing apparatus manufactures magnet pieces that constitute a field-pole magnet arranged in a rotary electric machine by fracturing the magnet. This manufacturing apparatus includes: a support unit on which the magnet is placed; a fracture unit that is arranged opposite to the support unit across the magnet and is configured to fracture the magnet by pressing the magnet while in contact with the magnet; and a powder removal unit that is configured to remove crush powder produced by fracture of the magnet.
    Type: Application
    Filed: June 20, 2012
    Publication date: May 29, 2014
    Inventors: Yasuhisa Koike, Kimio Nishimura, Hiroharu Takeuchi, Kunitomo Ishiguro, Kiyoshi Hasegawa, Yoshinori Izawa