Patents Assigned to NIPPON YTTRIUM CO., LTD.
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Patent number: 11987503Abstract: A powder for coating or sintering has a peak assigned to cubic Y3Al5O12 and a peak assigned to orthorhombic YAlO3 exhibited in X-ray diffractometry, and the intensity ratio of the peak assigned to the (112) plane of the orthorhombic YAlO3 to the peak assigned to the (420) plane of the cubic Y3Al5O12 is at least 0.01 and less than 1. Alternatively, a powder for coating or sintering includes a composite oxide of yttrium and aluminum, and the volume of pores with a pore size of from 0.1 to 1 ?m of the powder is at least 0.16 mL/g. It is preferable that, in X-ray diffractometry using CuK? radiation with a scan range of 2?=20° to 60°, a peak assigned to the cubic Y3Al5O12 is a peak that shows the highest peak intensity.Type: GrantFiled: July 24, 2019Date of Patent: May 21, 2024Assignee: NIPPON YTTRIUM CO., LTD.Inventors: Kento Matsukura, Seiji Moriuchi
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Publication number: 20230406719Abstract: A film-forming material of the present invention contains an oxyfluoride of yttrium represented by YOXFY (X and Y are numbers satisfying 0<X and X<Y) and YF3, wherein a ratio I2/I1 of a peak height I2 of the (020) plane of YF3 to a peak height I1 of the main peak of YOXFY as analyzed by XRD is from 0.005 to 100. It is preferable that a ratio I4/I1 of a peak height I4 of the main peak of Y2O3 to the peak height I1 of the main peak of YOXFY as analyzed by XRD is 0.01 or less.Type: ApplicationFiled: August 25, 2023Publication date: December 21, 2023Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI, Kento MATSUKURA
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Publication number: 20220388858Abstract: A film-forming material of the present invention contains an oxyfluoride of yttrium represented by YOFY (X and Y are numbers satisfying 0<X and X<Y) and YF3, wherein a ratio I2/I1 of a peak height I2 of the (020) plane of YF3 to a peak height I1 of the main peak of YOXFY as analyzed by XRD is from 0.005 to 100. It is preferable that a ratio I4/I1 of a peak height I4 of the main peak of Y2O3 to the peak height I1 of the main peak of YOXFY as analyzed by XRD is 0.01 or less.Type: ApplicationFiled: July 1, 2022Publication date: December 8, 2022Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI, Kento MATSUKURA
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Patent number: 11371131Abstract: The present invention relates a coating powder comprising a rare earth oxyfluoride (Ln-O—F) and having: an average particle size (D50) of 0.1 to 10 ?m, a pore volume of pores having a diameter of 10 ?m or smaller of 0.1 to 0.5 cm3/g as measured by mercury intrusion porosimetry, and a ratio of the maximum peak intensity (S0) assigned to a rare earth oxide (LnxOy) in the 2? angle range of from 20° to 40° to the maximum peak intensity (S1) assigned to the rare earth oxyfluoride (Ln-O—F) in the same range, S0/S1, of 1.0 or smaller in powder X-ray diffractometry using Cu-K? rays or Cu-K?1 rays.Type: GrantFiled: May 22, 2020Date of Patent: June 28, 2022Assignee: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi Sato, Naoki Fukagawa, Yuji Shigeyoshi, Kento Matsukura
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Patent number: 10934174Abstract: A film-forming material of the present invention contains an oxyfluoride of yttrium represented by YOXFY (X and Y are numbers satisfying 0<X and X<Y) and YF3, wherein a ratio I2/I1 of a peak height I2 of the (020) plane of YF3 to a peak height I1 of the main peak of YOXFY as analyzed by XRD is from 0.005 to 100. It is preferable that a ratio I4/I1 of a peak height I4 of the main peak of Y2O3 to the peak height I1 of the main peak of YOXFY as analyzed by XRD is 0.01 or less.Type: GrantFiled: December 15, 2016Date of Patent: March 2, 2021Assignee: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi Sato, Naoki Fukagawa, Yuji Shigeyoshi, Kento Matsukura
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Publication number: 20210017036Abstract: A film-forming material of the present invention contains an oxyfluoride of yttrium represented by YOXFY (X and Y are numbers satisfying 0<X and X<Y) and YF3, wherein a ratio I2/I1 of a peak height I2 of the (020) plane of YF3 to a peak height I1 of the main peak of YOXFY as analyzed by XRD is from 0.005 to 100. It is preferable that a ratio I4/I1 of a peak height I4 of the main peak of Y2O3 to the peak height I1 of the main peak of YOXFY as analyzed by XRD is 0.01 or less.Type: ApplicationFiled: October 1, 2020Publication date: January 21, 2021Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI, Kento MATSUKURA
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Publication number: 20200283881Abstract: The present invention relates a coating powder comprising a rare earth oxyfluoride (Ln-O—F) and having: an average particle size (D50) of 0.1 to 10 ?m, a pore volume of pores having a diameter of 10 ?m or smaller of 0.1 to 0.5 cm3/g as measured by mercury intrusion porosimetry, and a ratio of the maximum peak intensity (S0) assigned to a rare earth oxide (LnxOy) in the 2? angle range of from 20° to 40° to the maximum peak intensity (S1) assigned to the rare earth oxyfluoride (Ln-O—F) in the same range, S0/S1, of 1.0 or smaller in powder X-ray diffractometry using Cu-K? rays or Cu-K?1 rays.Type: ApplicationFiled: May 22, 2020Publication date: September 10, 2020Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI, Kento MATSUKURA
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Publication number: 20190241746Abstract: A coating material containing an oxyfluoride of yttrium and having a Fisher diameter of 1.0 to 10 ?m and a tap density TD to apparent density AD ratio, TD/AD, of 1.6 to 3.5. The coating material preferably has a pore volume of pores with a diameter of 100 ?m or smaller of 1.0 cm3/g or less as measured by mercury intrusion porosimetry. A coating containing an oxyfluoride of yttrium and having a Vickers hardness of 200 HV0.01 or higher. The coating preferably has a fracture toughness of 1.0×102 Pa·m1/2 or higher.Type: ApplicationFiled: August 7, 2017Publication date: August 8, 2019Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Naoki FUKAGAWA, Ryuichi SATO
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Patent number: 10173929Abstract: The present invention is a sintering material including a granule, the sintering material having an apparent tap density of 1.0 to 2.5 g/cm3, a 50% cumulative volume particle diameter (D50N) of 10 to 100 ?m as measured before ultrasonication by laser diffraction/scattering particle size distribution analysis, a 50% cumulative volume particle diameter (D50D) of 0.1 to 1.5 ?m as measured after ultrasonication at 300 W for 15 minutes by laser diffraction/scattering particle size distribution analysis, and an X-ray diffraction pattern in which the maximum peak observed in the 2? angle range of from 20° to 40° is assigned to a rare earth oxyfluoride of the form LnOF when analyzed by X-ray diffractometry using Cu—K? or Cu—K?1 rays.Type: GrantFiled: February 26, 2016Date of Patent: January 8, 2019Assignee: NIPPON YTTRIUM CO., LTD.Inventors: Naoki Fukagawa, Yuji Shigeyoshi
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Publication number: 20180362359Abstract: A film-forming material of the present invention contains an oxyfluoride of yttrium represented by YOXFY (X and Y are numbers satisfying 0 <X and X <Y) and YF3, wherein a ratio I2/I1 of a peak height I2 of the (020) plane of YF3 to a peak height Ii of the main peak of YOXFY as analyzed by XRD is from 0.005 to 100. It is preferable that a ratio I4/I1 of a peak height I4 of the main peak of Y2O3 to the peak height I1 of the main peak of YOXFY as analyzed by XRD is 0.01 or less.Type: ApplicationFiled: December 15, 2016Publication date: December 20, 2018Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI, Kento MATSUKURA
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Publication number: 20180016193Abstract: The present invention is a sintering material including a granule, the sintering material having an apparent tap density of 1.0 to 2.5 g/cm3, a 50% cumulative volume particle diameter (D50N) of 10 to 100 ?m as measured before ultrasonication by laser diffraction/scattering particle size distribution analysis, a 50% cumulative volume particle diameter (D50D) of 0.1 to 1.5 ?m as measured after ultrasonication at 300 W for 15 minutes by laser diffraction/scattering particle size distribution analysis, and an X-ray diffraction pattern in which the maximum peak observed in the 20 angle range of from 20° to 40° is assigned to a rare earth oxyfluoride of the form LnOF when analyzed by X-ray diffractometry using Cu—K? or Cu—K?1 rays.Type: ApplicationFiled: February 26, 2016Publication date: January 18, 2018Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Naoki FUKAGAWA, Yuji SHIGEYOSHI
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Publication number: 20170342539Abstract: The present invention relates a coating powder comprising a rare earth oxyfluoride (Ln-O—F) and having: an average particle size (D50) of 0.1 to 10 ?m, a pore volume of pores having a diameter of 10 ?m or smaller of 0.1 to 0.5 cm3/g as measured by mercury intrusion porosimetry, and a ratio of the maximum peak intensity (S0) assigned to a rare earth oxide (LnxOy) in the 2? angle range of from 20° to 40° to the maximum peak intensity (S1) assigned to the rare earth oxyfluoride (Ln-O—F) in the same range, S0/S1, of 1.0 or smaller in powder X-ray diffractometry using Cu-K? rays or Cu-K?1 rays.Type: ApplicationFiled: February 2, 2016Publication date: November 30, 2017Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI, Kento MATSUKURA
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Publication number: 20170305796Abstract: A sintered body of the present invention contains yttrium oxyfluoride. The yttrium oxyfluoride is preferably YOF and/or Y5O4F7. The sintered body of the present invention preferably contains 50% by mass or more of yttrium oxyfluoride. The sintered body of the present invention has a relative density of preferably 70% or more and an open porosity of preferably 10% or less. Furthermore, the sintered body of the present invention has a three-point bending strength of preferably 10 MPa or more and 300 MPa or less.Type: ApplicationFiled: November 18, 2015Publication date: October 26, 2017Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Toyohiko YANO, Katsumi YOSHIDA, Toru TSUNOURA, Yuji SHIGEYOSHI
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Patent number: 9708187Abstract: A thermal spray material comprising granules containing a rare earth oxyfluoride has a particle diameter of 1 to 150 ?m at a cumulative volume of 50 vol % before ultrasonic dispersion and 10 ?m or smaller after ultrasonic dispersion at 300 W for 15 minutes as determined by laser diffraction/scattering particle size distribution analysis. The particle diameter after ultrasonic dispersion is one-third or less of that before ultrasonic dispersion. The thermal spray material has an average aspect ratio of 2.0 or lower and a compressibility of 30% or less. When the granules further contain a rare earth fluoride, upon being analyzed by X-ray diffractometry using Cu-K? or Cu-K?1 radiation, S1/S2 is preferably ?0.10. S1=intensity of the maximum peak assigned to the rare earth oxyfluoride. S2=intensity of the maximum peak assigned to the rare earth fluoride, both observed in a 2? angle range of 20° to 40°.Type: GrantFiled: October 24, 2013Date of Patent: July 18, 2017Assignee: NIPPON YTTRIUM CO., LTD.Inventors: Naoki Fukagawa, Satoshi Ariyoshi
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Patent number: 9388485Abstract: A thermal spray material includes granules of an oxyfluoride of yttrium (YOF). The granules may contain a fluoride of yttrium (YF3). The granules preferably have an oxygen content of 0.3 to 13.1 mass %. The granules preferably have a fracture strength of 0.3 MPa or more and less than 10 MPa. Part of yttrium (Y) of the granules may be displaced with at least one rare earth element (Ln) except yttrium, the molar fraction of Ln relative to the sum of Y and Ln being preferably 0.2 or less.Type: GrantFiled: April 12, 2013Date of Patent: July 12, 2016Assignee: NIPPON YTTRIUM CO., LTD.Inventors: Naoki Fukagawa, Yuki Nakashima
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Publication number: 20150307715Abstract: A slurry for thermal spraying including particles containing a rare earth oxyfluoride and a dispersing medium. The particles have an average particle size of 0.01 to 10 ?m. The particles may further contain a rare earth fluoride. When the particles are analyzed by X-ray diffractometry using CuK? or CuK?1 radiation, a ratio of the maximum peak intensity (S0) of a rare earth oxide observed in a range of 2? angles of from 20° to 40° to the maximum peak intensity (S1) of the rare earth oxyfluoride observed in the same range, S0/S1, is preferably 0.10 or less.Type: ApplicationFiled: May 13, 2014Publication date: October 29, 2015Applicant: NIPPON YTTRIUM CO., LTD.Inventors: Ryuichi SATO, Naoki FUKAGAWA, Yuji SHIGEYOSHI