Patents by Inventor Shorin O
Shorin O 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: 20230048245Abstract: Production methods for Ti—Al alloys may include: adding a flux including calcium oxide containing 35+wt. % calcium fluoride, to a melt starting material of Ti material and Al material and with 50+wt. % Al; introducing the fluxed melt starting material into a water-cooled copper crucible having a tapping port in the bottom, induction melting it inside the water-cooled copper crucible in at least a 1.33 Pa atmosphere; the flux, containing oxygen released from the melt starting material by the induction melting, is separated out by tapping the melt starting material, which was induction melted in the water-cooled copper crucible, downward from the tapping port; and when obtaining the Ti—Al alloy by casting the flux-removed melt starting material, the induction melting output is reduced to no more than 90% of that during melting and tapping is performed from the water-cooled crucible with the output in a reduced state.Type: ApplicationFiled: February 3, 2021Publication date: February 16, 2023Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Daisuke MATSUWAKA, Shorin O
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Patent number: 11293068Abstract: Disclosed herein is a reduced iron production method enabling heat to be input well into reduced-iron raw materials on a hearth covering material in a reduction-melting furnace to improve the efficiency of treatment thereof. The reduced-iron raw materials are set on the hearth covering material through their falls and reduced on the hearth covering material. The hearth covering material is constituted by carbon materials each having a particle diameter of 5 mm or less. At least 7 mass % of the carbon materials have respective particle diameters each being 0.1 mm or less. This restrains the reduced-iron raw materials from embedment into the hearth covering material.Type: GrantFiled: May 12, 2017Date of Patent: April 5, 2022Assignee: Kobe Steel, Ltd.Inventors: Taiji Hatakeyama, Shorin O, Masahiro Hotta
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Publication number: 20200291494Abstract: Disclosed herein is a reduced iron production method enabling heat to be input well into reduced-iron raw materials on a hearth covering material in a reduction-melting furnace to improve the efficiency of treatment thereof. The reduced-iron raw materials are set on the hearth covering material through their falls and reduced on the hearth covering material. The hearth covering material is constituted by carbon materials each having a particle diameter of 5 mm or less. At least 7 mass % of the carbon materials have respective particle diameters each being 0.1 mm or less. This restrains the reduced-iron raw materials from embedment into the hearth covering material.Type: ApplicationFiled: May 12, 2017Publication date: September 17, 2020Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.)Inventors: Taiji HATAKEYAMA, Shorin O, Masahiro HOTTA
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Patent number: 10571193Abstract: A method and a device for charging a plurality of reduced iron raw materials into a traveling hearth reduction-melting furnace and treating the raw materials, allowing sufficient input of heat to the reduced iron raw materials on a hearth covering material to improve treatment efficiency are provided. The reduced iron raw materials are released downward from the lower surface of a ceiling of the reduction-melting furnace to be set on a hearth covering material on a hearth and reduced on the hearth covering material. The falling reduced iron raw materials are given a horizontal velocity having a direction equal to the travel direction of the hearth and being greater than the travel speed of the hearth to enable the reduced iron raw materials to roll in the same direction as the travel direction of the hearth after landing on the hearth covering material.Type: GrantFiled: January 21, 2016Date of Patent: February 25, 2020Assignee: Kobe Steel, Ltd.Inventors: Taiji Hatakeyama, Shorin O, Tomoki Uemura
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Patent number: 10407744Abstract: This method is for producing granular metallic iron in which the relation between the mass ratio (mass %) of the volatile matter content contained in a carbonaceous reducing agent and the average gas flow rate (m/s) of the ambient gas in a heating furnace fulfills expression (1). Mass ratio of volatile matter content??4.62×average gas flow rate+46.7 . . .Type: GrantFiled: May 13, 2015Date of Patent: September 10, 2019Assignee: Kobe Steel, Ltd.Inventors: Shorin O, Shuzo Ito
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Publication number: 20180017326Abstract: A method and a device for charging a plurality of reduced iron raw materials into a traveling hearth reduction-melting furnace and treating the raw materials, allowing sufficient input of heat to the reduced iron raw materials on a hearth covering material to improve treatment efficiency are provided. The reduced iron raw materials are released downward from the lower surface of a ceiling of the reduction-melting furnace to be set on a hearth covering material on a hearth and reduced on the hearth covering material. The falling reduced iron raw materials are given a horizontal velocity having a direction equal to the travel direction of the hearth and being greater than the travel speed of the hearth to enable the reduced iron raw materials to roll in the same direction as the travel direction of the hearth after landing on the hearth covering material.Type: ApplicationFiled: January 21, 2016Publication date: January 18, 2018Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Taiji HATAKEYAMA, Shorin O, Tomoki UEMURA
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Publication number: 20170073781Abstract: This method is for producing granular metallic iron in which the relation between the mass ratio (mass %) of the volatile matter content contained in a carbonaceous reducing agent and the average gas flow rate (m/s) of the ambient gas in a heating furnace fulfills expression (1). Mass ratio of volatile matter content??4.62×average gas flow rate+46.7 . . .Type: ApplicationFiled: May 13, 2015Publication date: March 16, 2017Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Shorin O, Shuzo ITO
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Publication number: 20160237514Abstract: Provided is a method for manufacturing iron nuggets by which reduced iron obtained by heating and reducing agglomerates, or iron nuggets obtained by melting and aggregating the reduced iron can be prevented from reoxidation inside a movable hearth heating furnace and quality of the reduced iron can be improved. The method involves charging and heating agglomerates including iron oxide and a carbonaceous reducing agent on a hearth of a movable hearth heating furnace, reducing and melting the iron oxide in the agglomerates, and then discharging obtained iron nuggets to the outside of the furnace and recovering the iron nuggets. The agglomerates have a coating layer, including a fluid carbonaceous material, on the surface.Type: ApplicationFiled: August 18, 2014Publication date: August 18, 2016Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)Inventors: Shuzo ITO, Taiji HATAKEYAMA, Shorin O, Hiroshi SUGITATSU
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Publication number: 20150292055Abstract: Provided is a process for manufacturing reduced iron by heating agglomerates, said process being capable of enhancing the yield of reduced iron and thus improving the productivity thereof. A process for manufacturing reduced iron which includes a step for agglomerating a mixture that comprises an iron oxide source, a carbonaceous reducing agent and a melting point regulator and a step for heating the obtained agglomerates to reduce the iron oxide contained in the agglomerates, wherein the agglomerates contain at least 1 mass % of a silicate mineral having a solidus temperature of 1300° C. or lower.Type: ApplicationFiled: October 21, 2013Publication date: October 15, 2015Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Takashi Tsushima, Shorin O, Shingo Yoshida, Masataka Tateishi