Patents by Inventor Yoshinori Nonaka
Yoshinori Nonaka 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: 11306597Abstract: A composite blade includes an airfoil; and a blade root including a straight section from a blade end part being a connection location with the airfoil to an inclination start part between the blade end part and a base end, and a bearing section from the inclination start part to the base end. A laminate of composite layers with reinforced fibers impregnated with resin is provided across the airfoil and the blade root. A metal body is provided on the blade root. The laminate extends along the longitudinal direction in the airfoil and in the straight section, and extends to be inclined away from a center axis in the bearing section. The metal body is provided on both surfaces of the laminate in the blade root, extends along the longitudinal direction in the straight section, and extends to be inclined away from the center axis in the bearing section.Type: GrantFiled: May 30, 2018Date of Patent: April 19, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Ryoji Okabe, Kentaro Shindo, Masami Kamiya, Yoshinori Nonaka
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Patent number: 11066939Abstract: A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin, and has a blade root and an airfoil extending from the blade root in a longitudinal direction. The composite blade includes a first laminate of the composite layers extending along the longitudinal direction in the airfoil and extending along a first inclination direction inclined toward a direction intersecting the longitudinal direction in the blade root; a second laminate of the composite layers extending along the longitudinal direction and contacting the first laminate in the airfoil, the second laminate extending along a second inclination direction inclined toward a direction opposite to the first inclination direction in the blade root and being separated from the first laminate; and a third laminate of the composite layers provided between the first and second laminates in the blade root.Type: GrantFiled: May 30, 2018Date of Patent: July 20, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Ryoji Okabe, Yoshinori Nonaka, Kentaro Shindo, Masami Kamiya
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Patent number: 10994513Abstract: A composite structure includes a stepped portion formed by laminating a plurality of plies with end surfaces thereof being shifted from each other. The composite structure includes a body portion which includes a first structure portion where a first ply is laminated on a top layer of the first structure portion, a second structure portion where a second ply is laminated on a top layer of the second structure portion, and the stepped portion disposed between the first structure portion and the second structure portion, the second ply being positioned at a distance from the first ply in a lamination direction, and a first cover ply which includes a covering portion covering the stepped portion, one end portion, and the other end portion and is formed so as to cover only a part of a surface of the first ply or a part of a surface of the second ply.Type: GrantFiled: July 3, 2018Date of Patent: May 4, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masahiro Kashiwagi, Yoshinori Nonaka, Kiyoka Takagi, Tooru Shitani, Toshio Abe
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Publication number: 20210108521Abstract: A composite blade is formed by laying up composite layers in which reinforced fibers are impregnated with resin, and has a blade root and an airfoil extending from the blade root in a longitudinal direction.Type: ApplicationFiled: May 30, 2018Publication date: April 15, 2021Inventors: Ryoji OKABE, Yoshinori NONAKA, Kentaro SHINDO, Masami KAMIYA
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Patent number: 10914176Abstract: A composite blade is formed by laying up composite material layers in which reinforcement fibers are impregnated with resin in a thickness direction of the blade. The composite blade includes a blade root on a base end side, an airfoil on a tip side, a first lay-up in which some composite material layers are laid up in the blade root so as to space parts of the composite material layers to form spacing parts and to extend from the distal toward the base end side in the thickness direction, and second lay-ups in which some composite material layers are laid up in the spacing parts so as to be lined up in the thickness direction. Among the second lay-ups, a second lay-up closer to a center side than to an outer side in the thickness direction is a larger distance from a proximal position to a top position.Type: GrantFiled: March 14, 2019Date of Patent: February 9, 2021Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masami Kamiya, Ryoji Okabe, Yoshinori Nonaka, Kentaro Shindo
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Publication number: 20200139668Abstract: A composite structure includes a stepped portion formed by laminating a plurality of plies with end surfaces thereof being shifted from each other. The composite structure includes a body portion which includes a first structure portion where a first ply is laminated on a top layer of the first structure portion, a second structure portion where a second ply is laminated on a top layer of the second structure portion, and the stepped portion disposed between the first structure portion and the second structure portion, the second ply being positioned at a distance from the first ply in a lamination direction, and a first cover ply which includes a covering portion covering the stepped portion, one end portion, and the other end portion and is formed so as to cover only a part of a surface of the first ply or a part of a surface of the second ply.Type: ApplicationFiled: July 3, 2018Publication date: May 7, 2020Inventors: Masahiro KASHIWAGI, Yoshinori NONAKA, Kiyoka TAKAGI, Tooru SHITANI, Toshio ABE
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Publication number: 20200095873Abstract: A composite blade includes an airfoil; and a blade root including a straight section from a blade end part being a connection location with the airfoil to an inclination start part between the blade end part and a base end, and a bearing section from the inclination start part to the base end. A laminate of composite layers with reinforced fibers impregnated with resin is provided across the airfoil and the blade root. A metal body is provided on the blade root. The laminate extends along the longitudinal direction in the airfoil and in the straight section, and extends to be inclined away from a center axis in the bearing section. The metal body is provided on both surfaces of the laminate in the blade root, extends along the longitudinal direction in the straight section, and extends to be inclined away from the center axis in the bearing section.Type: ApplicationFiled: May 30, 2018Publication date: March 26, 2020Inventors: Ryoji OKABE, Kentaro SHINDO, Masami KAMIYA, Yoshinori NONAKA
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Publication number: 20190301290Abstract: A composite blade formed by laying up composite material layers in which reinforced fibers are impregnated with resin in a blade thickness direction includes a blade root provided on a base side, an airfoil extending from a tip side of the blade root, a metal member provided on the blade root, and a fastener configured to fasten the blade root and the metal member. The blade root includes a main body portion, a curved portion that is curved outward in the blade thickness direction from the main body portion, and an extending portion that extends outward in the blade thickness direction from the curved portion. The metal member is fixed to the extending portion with the fastener.Type: ApplicationFiled: March 14, 2019Publication date: October 3, 2019Inventors: Masami Kamiya, Ryoji OKABE, Kentaro SHINDO, Yoshinori NONAKA
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Publication number: 20190301285Abstract: A composite blade is formed by laying up composite material layers in which reinforcement fibers are impregnated with resin in a thickness direction of the blade. The composite blade includes a blade root on a base end side, an airfoil on a tip side, a first lay-up in which some composite material layers are laid up in the blade root so as to space parts of the composite material layers to form spacing parts and to extend from the distal toward the base end side in the thickness direction, and second lay-ups in which some composite material layers are laid up in the spacing parts so as to be lined up in the thickness direction. Among the second lay-ups, a second lay-up closer to a center side than to an outer side in the thickness direction is a larger distance from a proximal position to a top position.Type: ApplicationFiled: March 14, 2019Publication date: October 3, 2019Inventors: Masami Kamiya, Ryoji OKABE, Yoshinori NONAKA, Kentaro SHINDO
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Patent number: 10137664Abstract: In a composite material structure, which is configured as a fiber-reinforced plastic composite material extending in one direction and having a plurality of holes defined at intervals in a row in the one direction and which is subjected to a tensile load and/or a compressive load in the one direction, a peripheral region around the holes comprises a first area obtained by bending composite material, which is reinforced using continuous fibers that have been made even in a longitudinal direction, so that a center line of a width of the composite material weaves between adjacent holes and zigzags in the one direction. A tensile rigidity and/or a compressive rigidity in the one direction of the peripheral region around the holes is lower than a tensile rigidity and/or a compressive rigidity in the one direction of other regions that surround the peripheral region.Type: GrantFiled: March 17, 2015Date of Patent: November 27, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masahiro Kashiwagi, Yoshinori Nonaka, Toshio Abe
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Patent number: 10094405Abstract: A joint structure (1) for a composite member made from a composite material. The joint structure includes a plate for increasing thickness (40a, 40b) adhered to at least one side of the composite member (10). The composite member (10) and a counterpart member (20) are fastened together by inserting and fixing a fastener member (30) into a through-hole (24, 26) formed through the composite member (10), the plate for increasing thickness (40a, 40b), and the counterpart member (20) to be joined to the composite member.Type: GrantFiled: December 17, 2012Date of Patent: October 9, 2018Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Nonaka, Masahiro Kashiwagi, Toshio Abe
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Publication number: 20170008250Abstract: The purpose of the present invention is to provide a lightweight composite material structure while suppressing a drop in strength. In a composite material structure, which is configured as a fiber-reinforced plastic composite material extending in one direction and having a plurality of holes (5) formed at intervals in a row in the one direction and which is subjected to a tensile load and/or a compressive load in the one direction, a peripheral region (3a) around the holes (5) comprises a first area (10) obtained by bending composite material, which is reinforced using continuous fibers that have been made even in the longitudinal direction, so that the center line of the width (W) of the composite material weaves between adjacent holes (5) and zigzags in the one direction.Type: ApplicationFiled: March 17, 2015Publication date: January 12, 2017Inventors: Masahiro KASHIWAGI, Yoshinori NONAKA, Toshio ABE
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Patent number: 9475568Abstract: A composite structure (3) formed of a composite member which extends in one direction, includes holes (5), and is made of fiber reinforced plastics. A tensile load and/or a compressive load are applied to the composite structure (3) in the one direction. Tensile stiffness and/or compression stiffness of peripheral areas (3a) of the holes (5) is lower than tensile stiffness and/or compression stiffness of the other area (3b), which surrounds the peripheral areas (3a), in the one direction, and the width of the peripheral area (3a) in a direction orthogonal to the one direction is set to 1.1 times or less of the diameter of the hole (5) in the direction orthogonal to the one direction.Type: GrantFiled: February 14, 2013Date of Patent: October 25, 2016Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masahiro Kashiwagi, Yoshinori Nonaka, Toshio Abe
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Patent number: 9157462Abstract: Joint parts of joinable plates to be joined to each other are joined by a plurality of joining bolts. The joining bolts are arranged in a direction of a tensile load F. The joint parts of the plate members have four sections T1 to T4 that vary in elastic modulus. The elastic modulus (E1 to E4) of these sections T1 to T4 have a relationship of E1(T1)>E2(T2)>E3(T3)>E4(T4).Type: GrantFiled: October 12, 2011Date of Patent: October 13, 2015Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yoshinori Nonaka, Masahiro Kashiwagi, Toshio Abe
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Publication number: 20150093185Abstract: joint structure for a composite member having a light-weight and low-cost structure, easy to manufacture, and resistible against a large shear load, is provided. A joint structure (1) for a composite member made from a composite material, comprising a plate for increasing thickness (40a, 40b) adhered to at least one side of the composite member (10); wherein the composite member (10) and a counterpart member (20) are fastened together by inserting and fixing a fastener member (30) into a through-hole (24, 26) formed through the composite member (10), the plate for increasing thickness (40a, 40b), and the counterpart member (20) to be joined to the composite member.Type: ApplicationFiled: December 17, 2012Publication date: April 2, 2015Inventors: Yoshinori Nonaka, Masahiro Kashiwagi, Toshio Abe
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Publication number: 20140377500Abstract: A composite structure (3) formed of a composite member which extends in one direction, includes holes (5), and is made of fiber reinforced plastics. A tensile load and/or a compressive load are applied to the composite structure (3) in the one direction. Tensile stiffness and/or compression stiffness of peripheral areas (3a) of the holes (5) is lower than tensile stiffness and/or compression stiffness of the other area (3b), which surrounds the peripheral areas (3a), in the one direction, and the width of the peripheral area (3a) in a direction orthogonal to the one direction is set to 1.1 times or less of the diameter of the hole (5) in the direction orthogonal to the one direction.Type: ApplicationFiled: February 14, 2013Publication date: December 25, 2014Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masahiro Kashiwagi, Yoshinori Nonaka, Toshio Abe
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Patent number: 8870231Abstract: In a fiber-reinforced resin pipe for introducing and discharging a liquid, a pipe (1) is provided with a plurality of introduction/discharge parts (2) for introducing or discharging liquid that are arranged at intervals in the axial direction from a peripheral surface of the pipe.Type: GrantFiled: April 24, 2009Date of Patent: October 28, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Arisawa Mfg. Co., Ltd.Inventors: Nozomu Kawasetsu, Yoshinori Nonaka, Kenji Tanaka, Koji Ando, Hiroshi Tanaka, Yuuichi Kawai
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Patent number: 8820361Abstract: A highly practical tube body for a pressure transducer is provided which has excellent pressure resistance, corrosion resistance, and tensile strength; which can be manufactured at low cost in comparison with cases of using stainless steel; and which makes it possible to keep inside diameter precision high. In this tube body for a pressure transducer, the pressure applied to the interior is varied periodically, and a seal layer (2) is provided to the internal peripheral surface of a tube body (1) made of a fiber-reinforced resin composed of fibers wound in layers.Type: GrantFiled: February 26, 2010Date of Patent: September 2, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Arisawa Mfg., Ltd.Inventors: Nozomu Kawasetsu, Yoshinori Nonaka, Kenji Tanaka, Takayoshi Hori, Kiichi Tokunaga, Hidemi Sawada, Hiroshi Tanaka, Yuichi Kawai, Takahiro Iiyoshi
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Publication number: 20130287490Abstract: Joint parts 14 of joinable plates 12a, 12b to be joined to each other are joined by a plurality of joining bolts 16a-16d. The joining bolts are arranged in a direction of a tensile load F. The joint parts 14 of the plate members 12a, 12b have four sections T1 to T4 that vary in elastic modulus. The elastic modulus (E1 to E4) of these sections T1 to T4 have a relationship of E1(T1)>E2(T2)>E3(T3)>E4(T4). By arranging the bolts 36a, 36d in the low-elastic sections T1, T4, the shared load of the joining bolts are equalized.Type: ApplicationFiled: October 12, 2011Publication date: October 31, 2013Inventors: Yoshinori Nonaka, Masahiro Kashiwagi, Toshio Abe
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Publication number: 20120090718Abstract: A highly practical tube body for a pressure transducer is provided which has excellent pressure resistance, corrosion resistance, and tensile strength; which can be manufactured at low cost in comparison with cases of using stainless steel; and which makes it possible to keep inside diameter precision high. In this tube body for a pressure transducer, the pressure applied to the interior is varied periodically, and a seal layer (2) is provided to the internal peripheral surface of a tube body (1) made of a fiber-reinforced resin composed of fibers wound in layers.Type: ApplicationFiled: February 26, 2010Publication date: April 19, 2012Applicants: ARISAWA MFG. CO., LTD., MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Nozomu Kawasetsu, Yoshinori Nonaka, Kenji Tanaka, Takayoshi Hori, Kiichi Tokunaga, Hidemi Sawada, Hiroshi Tanaka, Yuichi Kawai, Takahiro Iiyoshi