Patents by Inventor Takanori Kadokura
Takanori Kadokura 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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Publication number: 20230212726Abstract: A ratio of an angle of 2 to 15° is 50% or more in an arbitrary surface of the tungsten material, the angle being formed between a specific crystal orientation of a first crystal grain and a specific crystal orientation of a second crystal grain adjacent to the first crystal grain.Type: ApplicationFiled: March 25, 2022Publication date: July 6, 2023Applicant: A.L.M.T. CorpInventors: Takeshi IIKURA, Takanori KADOKURA
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Publication number: 20210008625Abstract: A molybdenum material having a diameter of 75 mm or more and a length of 250 mm or more, and having a relative density of 99.5% or more.Type: ApplicationFiled: March 20, 2019Publication date: January 14, 2021Applicant: A.L.M.T. Corp.Inventors: Akihiro YOSHIDA, Takanori KADOKURA, Tomohiro TAKIDA
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Patent number: 10553519Abstract: A heat radiating member includes: a composite portion composed of a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; and a metal layer formed on at least one surface of the composite portion and composed of a metal. A method for producing a heat radiating member includes: a preparation step to prepare a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; a powder arrangement step to dispose a metal powder composed of metal particles on at least one surface of the composite material; and a heating step to heat the composite material and the metal powder, with the metal powder disposed on the composite material, to form a metal layer composed of a metal of the metal powder on a composite portion composed of the composite material.Type: GrantFiled: September 1, 2015Date of Patent: February 4, 2020Assignees: A.L.M.T. Corp, Sumitomo Electric Industries, Ltd.Inventors: Tatsuya Morikawa, Takanori Kadokura, Isao Iwayama
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Patent number: 10174410Abstract: A heat-resistant molybdenum alloy of this invention comprises a first phase containing Mo as a main component and a second phase comprising a Mo—Si—B-based intermetallic compound particle phase, wherein the balance is an inevitable impurity and wherein the Si content is 0.05 mass % or more and 0.80 mass % or less and the B content is 0.04 mass % or more and 0.60 mass % or less.Type: GrantFiled: March 12, 2013Date of Patent: January 8, 2019Assignee: A.L.M.T. Corp.Inventors: Takanori Kadokura, Hidenobu Nishino, Ayuri Tsuji, Shigekazu Yamazaki, Akihiko Ikegaya
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Patent number: 10100390Abstract: A heat-resistant member comprising a molybdenum alloy that comprises a first phase containing Mo as a main component and a second phase comprising a Mo—Si—B-based intermetallic compound particle phase, wherein the balance is an inevitable impurity and wherein the Si content is 0.05 mass % or more and 0.80 mass % or less and the B content is 0.04 mass % or more and 0.60 mass % or less. The member may be coated.Type: GrantFiled: November 3, 2014Date of Patent: October 16, 2018Assignee: A.L.M.T. Corp.Inventors: Takanori Kadokura, Hidenobu Nishino, Ayuri Tsuji, Shigekazu Yamazaki, Akihiko Ikegaya
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Publication number: 20170287810Abstract: A heat radiating member includes: a composite portion composed of a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; and a metal layer formed on at least one surface of the composite portion and composed of a metal. A method for producing a heat radiating member includes: a preparation step to prepare a composite material which contains particles of a satisfactorily thermally conductive material in a metal matrix; a powder arrangement step to dispose a metal powder composed of metal particles on at least one surface of the composite material; and a heating step to heat the composite material and the metal powder, with the metal powder disposed on the composite material, to form a metal layer composed of a metal of the metal powder on a composite portion composed of the composite material.Type: ApplicationFiled: September 1, 2015Publication date: October 5, 2017Inventors: Tatsuya Morikawa, Takanori Kadokura, Isao Iwayama
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Publication number: 20170145280Abstract: Provided are a diamond composite material which is excellent in thermal conductivity, suitable as a material for a heat radiating member, and dense, the heat radiating member, and a method for producing a diamond composite material that can productively produce a diamond composite material which is excellent in wettability between diamond and metal and dense. The diamond composite material includes: a coated diamond particle including a diamond particle and a carbide layer covering a surface of the diamond particle and including an element of group 4 of the periodic table; and silver or a silver alloy binding such coated diamond particles together, with an oxygen content of 0.1 mass % or less.Type: ApplicationFiled: September 1, 2015Publication date: May 25, 2017Applicants: A.L.M.T. Corp., A.L.M.T. Corp.Inventors: Tatsuya Morikawa, Takanori Kadokura, Kensuke Osawa
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Publication number: 20150056408Abstract: A heat-resistant member comprising a molybdenum alloy that comprises a first phase containing Mo as a main component and a second phase comprising a Mo—Si—B-based intermetallic compound particle phase, wherein the balance is an inevitable impurity and wherein the Si content is 0.05 mass % or more and 0.80 mass % or less and the B content is 0.04 mass % or more and 0.60 mass % or less. The member may be coated.Type: ApplicationFiled: November 3, 2014Publication date: February 26, 2015Inventors: Takanori KADOKURA, Hidenobu NISHINO, Ayuri TSUJI, Shigekazu YAMAZAKI, Akihiko IKEGAYA
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Publication number: 20140308536Abstract: There is provided a flat plate-like sintered tungsten alloy that can be molded into a complex shape by press working or forge processing. The flat plate-like sintered tungsten alloy contains 85% by mass or more and 98% by mass or less of W, 1.4% by mass or more and 11% by mass or less of Ni, and 0.6% by mass or more and 6% by mass or less of at least one substance selected from the group consisting of Fe, Cu and Co, wherein an elongation percentage of the flat plate-like sintered tungsten alloy in a planar direction is 20% or more.Type: ApplicationFiled: November 27, 2012Publication date: October 16, 2014Applicant: A.L.M.T. CorpInventors: Gouhei Toyoshima, Noboru Uenishi, Norihito Goma, Satoshi Umemoto, Takanori Kadokura, Tomohiro Takida, Kazunaga Sakakibara
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Publication number: 20140141281Abstract: A heat-resistant molybdenum alloy of this invention comprises a first phase containing Mo as a main component and a second phase comprising a Mo—Si—B-based intermetallic compound particle phase, wherein the balance is an inevitable impurity and wherein the Si content is 0.05 mass % or more and 0.80 mass % or less and the B content is 0.04 mass % or more and 0.60 mass % or less.Type: ApplicationFiled: March 12, 2013Publication date: May 22, 2014Inventors: Takanori Kadokura, Hidenobu Nishino, Ayuri Tsuji, Shigekazu Yamazaki, Akihiko Ikegaya
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Publication number: 20140014235Abstract: Provided is an industrially advantageous molybdenum material which is capable of causing secondary recrystallization to occur at a temperature lower than conventional and which, after the secondary recrystallization, can have a structure that comprises giant crystal grains with less grain boundaries and thus is excellent in creep resistance. The molybdenum material has, in at least a part thereof, a portion having a region where the peak intensities of the (110) and (220) diffraction planes are each less than the peak intensity of the (211) diffraction plane, as measured by X-ray diffraction, in a region at a depth of one-fifth of the entire thickness in a plate thickness direction from a surface.Type: ApplicationFiled: January 11, 2012Publication date: January 16, 2014Applicant: A.L.M.T. CORP.Inventors: Takanori Kadokura, Tomohiro Takida