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).
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Patent number: 11976366Abstract: 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: GrantFiled: June 13, 2019Date of Patent: May 7, 2024Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori Izawa, Junichi Arai, Katsunori Otobe, Shinichi Nishimura
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Patent number: 11926900Abstract: 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: GrantFiled: June 3, 2021Date of Patent: March 12, 2024Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori Izawa, Junichi Arai, Yutaka Mabuchi, Katsunori Otobe, Shinichi Nishimura
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Patent number: 11680499Abstract: 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: GrantFiled: July 19, 2018Date of Patent: June 20, 2023Assignee: NISSAN MOTOR CO., LTD.Inventors: Yoshinori Izawa, Yutaka Mabuchi, Akinobu Itou, Junichi Arai, Misao Mogami, Masanao Harada, Moriyuki Nogami
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Patent number: 11187116Abstract: 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: GrantFiled: February 2, 2018Date of Patent: November 30, 2021Assignee: NISSAN MOTOR CO., LTD.Inventor: Yoshinori Izawa
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Publication number: 20210324913Abstract: 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: ApplicationFiled: June 13, 2019Publication date: October 21, 2021Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
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Patent number: 11148195Abstract: 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: GrantFiled: February 2, 2018Date of Patent: October 19, 2021Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori Izawa, Junichi Arai, Yutaka Mabuchi, Katsunori Otobe, Shinichi Nishimura
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Publication number: 20210293158Abstract: 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: ApplicationFiled: July 19, 2018Publication date: September 23, 2021Applicant: NISSAN MOTOR CO., LTD.Inventors: Yoshinori IZAWA, Yutaka MABUCHI, Akinobu ITOU, Junichi ARAI, Misao MOGAMI, Masanao HARADA, Moriyuki NOGAMI
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Publication number: 20210293274Abstract: 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: ApplicationFiled: June 19, 2019Publication date: September 23, 2021Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
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Publication number: 20210291263Abstract: 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: ApplicationFiled: June 3, 2021Publication date: September 23, 2021Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
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Patent number: 10982622Abstract: 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: GrantFiled: February 2, 2018Date of Patent: April 20, 2021Assignees: NISSAN MOTOR CO., LTD., RENAULT S.A.S.Inventors: Yoshinori Izawa, Yutaka Mabuchi, Junichi Arai, Christian Grente, Elodie Bonay, Carolina Specht, Jean Marie Mahlaire
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Patent number: 10927893Abstract: 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: GrantFiled: February 2, 2018Date of Patent: February 23, 2021Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori Izawa, Junichi Arai, Katsunori Otobe, Shinichi Nishimura
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Patent number: 10745809Abstract: 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: GrantFiled: February 2, 2018Date of Patent: August 18, 2020Assignees: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori Izawa, Junichi Arai, Yutaka Mabuchi, Katsunori Otobe, Shinichi Nishimura
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Publication number: 20200248647Abstract: 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: ApplicationFiled: February 2, 2018Publication date: August 6, 2020Applicants: NISSAN MOTOR CO., LTD., RENAULT s.a.s.Inventors: Yoshinori IZAWA, Yutaka MABUCHI, Junichi ARAI, Christian GRENTE, Elodie BONAY, Carolina SPECHT, Jean Marie MAHLAIRE
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Patent number: 10590812Abstract: 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: GrantFiled: January 16, 2015Date of Patent: March 17, 2020Assignee: NISSAN MOTOR CO., LTD.Inventors: Yoshinori Izawa, Yutaka Mabuchi
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Publication number: 20200011216Abstract: 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: ApplicationFiled: February 2, 2018Publication date: January 9, 2020Applicant: Nissan Motor Co., Ltd.Inventor: Yoshinori Izawa
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Publication number: 20200011211Abstract: 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: ApplicationFiled: February 2, 2018Publication date: January 9, 2020Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Katsunori OTOBE, Shinichi NISHIMURA
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Publication number: 20190368049Abstract: 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: ApplicationFiled: February 2, 2018Publication date: December 5, 2019Applicants: NISSAN MOTOR CO,, LTD., FUKUDA METAL FOIL & POWDER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
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Publication number: 20190344338Abstract: 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: ApplicationFiled: February 2, 2018Publication date: November 14, 2019Applicants: NISSAN MOTOR CO., LTD., FUKUDA METAL FOIL & POWER CO., LTD.Inventors: Yoshinori IZAWA, Junichi ARAI, Yutaka MABUCHI, Katsunori OTOBE, Shinichi NISHIMURA
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Patent number: 10364844Abstract: 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: GrantFiled: July 21, 2016Date of Patent: July 30, 2019Assignee: NISSAN MOTOR CO., LTD.Inventor: Yoshinori Izawa
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Publication number: 20180223902Abstract: 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: ApplicationFiled: July 21, 2016Publication date: August 9, 2018Applicant: NISSAN MOTOR CO., LTD.Inventor: Yoshinori IZAWA