Patents by Inventor Naoaki Shimada
Naoaki Shimada 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: 10016802Abstract: A bent product having a three-dimensionally bent portion intermittently or continuously in the lengthwise direction is manufactured by supporting a steel pipe at a first position A while feeding it in the lengthwise direction, locally heating the steel pipe being fed at a second position B, cooling the heated portion of the steel pipe at a third position C, and varying the position of a gripping means, which grips the steel pipe in a region ID downstream of the third position C, in a three-dimensional direction including the feed direction of the steel pipe in a workspace including a space on the upstream side of the third position C in the feed direction of the steel pipe to impart a bending moment to the heated portion of the steel pipe.Type: GrantFiled: October 13, 2017Date of Patent: July 10, 2018Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, NIPPON STEEL & SUMIKIN PIPE CO., LTD.Inventors: Atsushi Tomizawa, Naoaki Shimada, Saburo Inoue, Shinjiro Kuwayama
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Publication number: 20180043411Abstract: A bent product having a three-dimensionally bent portion intermittently or continuously in the lengthwise direction is manufactured by supporting a steel pipe at a first position A while feeding it in the lengthwise direction, locally heating the steel pipe being fed at a second position B, cooling the heated portion of the steel pipe at a third position C, and varying the position of a gripping means, which grips the steel pipe in a region ID downstream of the third position C, in a three-dimensional direction including the feed direction of the steel pipe in a workspace including a space on the upstream side of the third position C in the feed direction of the steel pipe to impart a bending moment to the heated portion of the steel pipe.Type: ApplicationFiled: October 13, 2017Publication date: February 15, 2018Inventors: Atsushi TOMIZAWA, Naoaki SHIMADA, Saburo INOUE, Shinjiro KAWAYAMA
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Patent number: 9821357Abstract: A bent product having a three-dimensionally bent portion intermittently or continuously in the lengthwise direction is manufactured by supporting a steel pipe at a first position A while feeding it in the lengthwise direction, locally heating the steel pipe being fed at a second position B, cooling the heated portion of the steel pipe at a third position C, and varying the position of a gripping means, which grips the steel pipe in a region D downstream of the third position C, in a three-dimensional direction including the feed direction of the steel pipe in a workspace including a space on the upstream side of the third position C in the feed direction of the steel pipe to impart a bending moment to the heated portion of the steel pipe.Type: GrantFiled: April 21, 2011Date of Patent: November 21, 2017Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, SUMITOMO PIPE & TUBE CO., LTD.Inventors: Atsushi Tomizawa, Naoaki Shimada, Saburo Inoue, Shinjiro Kuwayama
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Publication number: 20170304883Abstract: According to the present invention, there is provided a cooling apparatus for a steel material in which one portion in a longitudinal direction of an elongated steel material (10) is heated while the steel material is fed in the longitudinal direction in a state where one end portion of the steel material is gripped, and the one end portion is moved in a two-dimensional or three-dimensional direction so as to form the steel material into a predetermined shape including a bent portion and thereafter to cool a heated portion including the bent portion. The cooling apparatus includes a first cooling apparatus (22) that ejects a first cooling medium to the heated portion, and a second cooling apparatus (23) that is disposed on a downstream side from the first cooling apparatus when viewed along a feeding direction of the steel material, and that ejects a second cooling medium to the heated portion.Type: ApplicationFiled: October 5, 2015Publication date: October 26, 2017Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Yoshihiro SERIZAWA, Akihiro SAKAMOTO, Masahito TASAKA, Naoaki SHIMADA, Ryuji HAMADA, Hideki MATSUDA, Norimasa YAMASAKI
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Publication number: 20170232495Abstract: A method for manufacturing a bent member, the method includes feeding an elongated steel material in a longitudinal direction with one end portion of the steel material as a head, performing high-frequency induction heating to one portion of the steel material in the longitudinal direction by being supplied high-frequency power to form a high-temperature portion, bending the steel material by applying a bending moment in an arbitrary direction to the high-temperature portion to form a bent portion, and injecting a cooling medium to the bent portion to cool the bent portion.Type: ApplicationFiled: August 28, 2015Publication date: August 17, 2017Applicant: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Atsushi TOMIZAWA, Hiroaki KUBOTA, Naoaki SHIMADA
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Publication number: 20170174646Abstract: The present invention provides a compound of the following Formula (1) or a pharmaceutically acceptable salt thereof: wherein X is an oxygen atom and the like; Y is —CO—, —SO2— and the like; R1 is an optionally-substituted C1-6 alkyl group, an optionally-substituted C1-6 alkylcarbonyl group and the like; R2 is an optionally-substituted C1-6 alkyl group, an optionally-substituted C1-6 alkoxy group, an optionally-substituted amino group, an optionally-substituted 5- to 12-membered monocyclic or polycyclic saturated heterocyclic group and the like; R3, R4, R5, and R6 are independently a hydrogen atom and the like which exhibits excellent effects in suppressing the proliferation and sphere-forming ability of cancer cells, and can be useful as an antitumor drug or cell growth inhibitor.Type: ApplicationFiled: February 6, 2015Publication date: June 22, 2017Applicant: Boston Biomedical, Inc.Inventors: Toshihiko SONE, Wataru HIROSE, Naoaki SHIMADA, Chiang J. LI, Wei LI, David LEGGETT
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Patent number: 9604272Abstract: An induction heating coil for stably heating a steel tube which is being fed in its axial direction without rotating, the heating being uniform in the circumferential direction and in a narrow range in the axial direction has at least two 1-turn coils in the form of a first turn coil body and a second turn coil body. The inner peripheral length Ln (the non-effective coil length) where the effective number of coil turns is less than the total number of coil turns when the coil is projected in the axial direction and the inner peripheral length L0 of the projected coil bodies (the inner coil length) satisfy Ln/L0<0.05. First and second coil bodies have insulating portions on their connecting portions, and the insulating portions are present in locations separated by a central angle of 5-45° measured from the center of the coil bodies.Type: GrantFiled: July 6, 2012Date of Patent: March 28, 2017Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Nobuhiro Okada, Atsushi Tomizawa, Naoaki Shimada
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Publication number: 20170072446Abstract: A bending apparatus has (a) a first manipulator which feeds a hollow metal blank of closed cross section in its lengthwise direction, (b) a second manipulator which supports a first support means disposed at a first position and a metal blank while feeding it, a heating means disposed at a second position downstream of the first position in the blank feed direction for heating all or part of the circumference of the blank, and a cooling means disposed at a third position downstream of the second position for cooling a portion of the heated blank, and (c) a third manipulator which constitutes a second support means disposed at a fourth position downstream of the third position in the feed direction of the blank and which moves two-dimensionally or three-dimensionally while supporting at least one location of the metal blank to bend the metal blank into a desired shape.Type: ApplicationFiled: September 30, 2016Publication date: March 16, 2017Inventors: Atsushi TOMIZAWA, Naoaki Shimada, Shinjiro Kuwayama, Saburo Inoue, Manabu Okahisa, Yusuke Kinoshita, Takashi Suyama
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Patent number: 9457390Abstract: A bending apparatus has (a) a first manipulator which feeds a hollow metal blank of closed cross section in its lengthwise direction, (b) a second manipulator which supports a first support means disposed at a first position and a metal blank while feeding it, a heating means disposed at a second position downstream of the first position in the blank feed direction for heating all or part of the circumference of the blank, and a cooling means disposed at a third position downstream of the second position for cooling a portion of the heated blank, and (c) a third manipulator which constitutes a second support means disposed at a fourth position downstream of the third position in the feed direction of the blank and which moves two-dimensionally or three-dimensionally while supporting at least one location of the metal blank to bend the metal blank into a desired shape.Type: GrantFiled: December 23, 2011Date of Patent: October 4, 2016Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, SUMITOMO PIPE & TUBE CO., LTD., KABUSHIKI KAISHA YASKAWA DENKIInventors: Atsushi Tomizawa, Naoaki Shimada, Shinjiro Kuwayama, Saburo Inoue, Manabu Okahisa, Yusuke Kinoshita, Takashi Suyama
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Publication number: 20160279690Abstract: An induction heating coil for stably heating a steel tube which is being fed in its axial direction without rotating, the heating being uniform in the circumferential direction and in a narrow range in the axial direction has at least two 1-turn coils in the form of a first turn coil body and a second turn coil body. The inner peripheral length Ln (the non-effective coil length) where the effective number of coil turns is less than the total number of coil turns when the coil is projected in the axial direction and the inner peripheral length LO of the projected coil bodies (the inner coil length) satisfy Ln/LO <0.05. First and second coil bodies have insulating portions on their connecting portions, and the insulating portions are present in locations separated by a central angle of 5-45° measured from the center of the coil bodies.Type: ApplicationFiled: April 28, 2016Publication date: September 29, 2016Inventors: Nobuhiro OKADA, Atsushi TOMIZAWA, Naoaki SHIMADA
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Patent number: 9227237Abstract: A bending apparatus has (a) a first manipulator which feeds a hollow metal blank of closed cross section in its lengthwise direction, (b) a second manipulator which supports a first support means disposed at a first position and a metal blank while feeding it, a heating means disposed at a second position downstream of the first position in the blank feed direction for heating all or part of the circumference of the blank, and a cooling means disposed at a third position downstream of the second position for cooling a portion of the heated blank, and (c) a third manipulator which constitutes a second support means disposed at a fourth position downstream of the third position in the feed direction of the blank and which moves two-dimensionally or three-dimensionally while supporting at least one location of the metal blank to bend the metal blank into a desired shape.Type: GrantFiled: December 23, 2011Date of Patent: January 5, 2016Assignees: NIPPON STEEL & SUMITOMO METAL CORPORATION, SUMITOMO PIPE & TUBE CO., LTD., KABUSHIKI KAISHA YASKAWA DENKIInventors: Atsushi Tomizawa, Naoaki Shimada, Shinjiro Kuwayama, Saburo Inoue, Manabu Okahisa, Yusuke Kinoshita, Takashi Suyama
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Patent number: 9045817Abstract: A heat treated galvannealed steel material having excellent post-painting corrosion resistance and a high strength which is suitable for use as an automotive part and a method for its manufacture are provided. A galvannealed steel material having a galvannealed coating on at least one side thereof is heat treated by heating at least a portion thereof to a temperature range in which hardening is possible. The coating remaining on the surface of at least a part of the portion which underwent heat treatment has a coating weight of at least 20 g/m2 and at most 80 g/m2 per side and an Fe content of at least 15% and at most 35%, an ? phase is present in the coating, and the centerline average roughness Ra of the surface of the coating is at most 1.5 ?m.Type: GrantFiled: July 23, 2010Date of Patent: June 2, 2015Assignee: NIPPON STEEL & SUMITOMO METAL CORPORATIONInventors: Tamotsu Toki, Atsushi Tomizawa, Nobusato Kojima, Kazuya Ishii, Kazuhito Imai, Toyomitsu Nakamura, Naoaki Shimada
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Strength member for an automobile body, front side member, and side structure for an automobile body
Patent number: 8899665Abstract: A side structure for an automobile body has an A-pillar having a first portion which has a closed cross section and which is connected to a side sill and extends upwards, and a second portion which has a closed cross section and which is continuous with the first portion and extends along a slope therefrom, and a roof rail side member which has a closed cross section and which is continuous with the A-pillar and is connected to a B-pillar. The side reinforcing member having a closed cross section and a shape which is bent three-dimensionally and which is constituted by a single member in the axial direction and has undergone high frequency quenching is disposed so a to extend at least inside the second portion and inside the roof rail side member to be positioned to the rear of the connection with the B-pillar.Type: GrantFiled: May 1, 2013Date of Patent: December 2, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Michitaka Yoshida, Nobusato Kojima, Atsushi Tomizawa, Naoaki Shimada -
Patent number: 8776567Abstract: An arm material for an upper arm or a lower arm is provided which constitutes a double wishbone suspension or the like of an automobile and which has a flat, hollow, closed cross-sectional shape and enables further decreases in size, decreases in weight, and increases in strength. An arm material for an automobile suspension has a body made from a parts material made by metal. The parts material made by metal has a flat, hollow, closed cross-sectional shape having a pair of opposing long sides and is formed from a single member in its lengthwise direction. The body has at least a first bent portion which is bent in a plane roughly parallel to the pair of long sides.Type: GrantFiled: June 12, 2012Date of Patent: July 15, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Naoaki Shimada, Michitaka Yoshida
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Patent number: 8635835Abstract: A lightweight hollow member having excellent stiffness and impact properties and which is suitable for automotive parts due to having a high strength such as at least 780 MPa and a complicated shape is provided. A hollow member 11 has a hollow steel body 14. The body 14 is constituted by a single member at least in the lengthwise direction. The body 14 has a flat cross section having at least a portion with a maximum outer dimension L1 and a portion with an outer dimension L2 shorter than the maximum outer dimension L1. The body 14 has a twisted portion in a portion of its length.Type: GrantFiled: July 20, 2011Date of Patent: January 28, 2014Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Atsushi Tomizawa, Naoaki Shimada, Michitaka Yoshida
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STRENGTH MEMBER FOR AN AUTOMOBILE BODY, FRONT SIDE MEMBER, AND SIDE STRUCTURE FOR AN AUTOMOBILE BODY
Publication number: 20140008937Abstract: A side structure for an automobile body has an A-pillar having a first portion which has a closed cross section and which is connected to a side sill and extends upwards, and a second portion which has a closed cross section and which is continuous with the first portion and extends along a slope therefrom, and a roof rail side member which has a closed cross section and which is continuous with the A-pillar and is connected to a B-pillar. The side reinforcing member having a closed cross section and a shape which is bent three-dimensionally and which is constituted by a single member in the axial direction and has undergone high frequency quenching is disposed so a to extend at least inside the second portion and inside the roof rail side member to be positioned to the rear of the connection with the B-pillar.Type: ApplicationFiled: May 1, 2013Publication date: January 9, 2014Inventors: Michitaka YOSHIDA, Nobusato Kojima, Atsushi Tomizawa, Naoaki Shimada -
Patent number: 8567225Abstract: A bent member having excellent dimensional accuracy is manufactured by stably forming a high temperature portion uniformly in the circumferential direction of a steel tube and in a narrow region in the axial direction of the steel. The bent member is manufactured by supporting a steel tube at a first position while feeding it, performing induction heating of the steel tube at a second position with an induction heating coil, cooling the steel tube at a third position to form a high temperature portion which moves in the axial direction of the steel tube, and three-dimensionally varying the position of a gripping mechanism for the steel tube in a region to apply a bending moment to the high temperature portion.Type: GrantFiled: July 6, 2012Date of Patent: October 29, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Nobuhiro Okada, Atsushi Tomizawa, Naoaki Shimada
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Publication number: 20130280548Abstract: A bent metal member has a body formed from a tubular metal material and has a shape which is bent two-dimensionally or three-dimensionally. The surface of the body has a Zn-based coating which contains an ? phase and which satisfies the following condition: coating weight: at most 90 g/m2 per side, Fe content: 8-35 mass %, and a surface roughness Ra prescribed by WS B 0601: at most 2.0 ?m. The bent metal member can have a closed cross section, an open cross section, or a shaped cross section.Type: ApplicationFiled: June 19, 2013Publication date: October 24, 2013Inventors: Toyomitsu NAKAMURA, Atsushi Tomizawa, Naoaki Shimada, Nobusato Kojima, Kazuya Ishii, Kazuhito Imai, Tamotsu Toki
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Patent number: 8490457Abstract: A method of manufacturing a bent metal member comprises supporting the outer surface of a tubular metal material having a Zn-Fe alloy coating layer at two locations spaced in the axial direction of the metal material. The metal material is fed in its axial direction and heated at a position between the two locations to a temperature range of at least the Ac3 point at a heating speed such that the rate of temperature increase is at least 3.0×102° C. per second, held so that the time for which the surface of the metal material is at a temperature of 8.0×102° C. or higher is at most 2 seconds, and then rapid cooled. A bending moment is imparted to the healed portion in two or three dimensions to manufacture a bent metal member having on its surface a Zn-based layer which contains an ?, phase.Type: GrantFiled: July 19, 2011Date of Patent: July 23, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Toyomitsu Nakamura, Atsushi Tomizawa, Naoaki Shimada, Nobusato Kojima, Kazuya Ishii, Kazuhito Imai, Tamotsu Toki
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Strength member for an automobile body, front side member, and side structure for an automobile body
Patent number: 8454079Abstract: A front side member having a single body formed from a tubular body having a closed cross section has a front portion which extends in the fore and aft direction of a vehicle body, a sloping portion which is continuous with the front portion and slopes downwards along a dash panel, and a rear portion continuous with the sloping portion and extending along the bottom surface of a floor panel joined to the dash panel. A portion of the front portion is an unquenched portion which has not undergone quenching treatment and the remainder is a high frequency quenched portion which has undergone high frequency quenching. The sloping portion is a high frequency quenched portion. A portion of the rear portion is an unquenched portion which has not undergone quenching and the remainder other than that portion is a high frequency quenched portion which has undergone high frequency quenching.Type: GrantFiled: February 15, 2012Date of Patent: June 4, 2013Assignee: Nippon Steel & Sumitomo Metal CorporationInventors: Michitaka Yoshida, Nobusato Kojima, Atsushi Tomizawa, Naoaki Shimada