Patents by Inventor Shuhei Muto
Shuhei Muto 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: 10343356Abstract: To reduce a time required for repairing a honeycomb core sandwich panel. A repair method according to the present invention is a repair method, in which a repair patch 20 is disposed on a repair target portion that exists on the side of a repair surface 1A of a honeycomb core sandwich panel 1, the honeycomb core sandwich panel 1 being formed by sandwiching a honeycomb structured core 10 with a plurality of cells between skins 11 and 12, the method including: a heating step of heating the repair patch 20; and a cooling step of cooling the honeycomb core sandwich panel 1 from the side of a second surface 1B opposing the repair surface 1A of the honeycomb core sandwich panel 1.Type: GrantFiled: March 20, 2014Date of Patent: July 9, 2019Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kohei Hatano, Masayoshi Suhara, Toshikazu Shigetomi, Shuhei Muto
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Patent number: 10343761Abstract: The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes: a repairing material disposing step of disposing a repairing patch 21 including a resistance heating element 23 and a carbon fiber reinforced resin, and an adhesive 22A including a thermosetting resin before being hardened for bonding the repairing patch 21 on the repair target portion 14; and a heating-hardening step of heating and hardening the thermosetting resin of the adhesive 22A by causing the resistance heating element 23 to generate heat through supply of electricity thereto.Type: GrantFiled: August 22, 2018Date of Patent: July 9, 2019Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kiwamu Arikawa, Masayoshi Suhara, Hiroyuki Iseki, Shuhei Muto
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Patent number: 10336020Abstract: The present invention provides a device which can uniformize heat distribution by using an existing heater mat for repairing or joining members. A heat dispersion device includes a bag with a fluid sealed inside, and is disposed on a second surface of a heater mat which has a first surface to be directed toward an object to be heated and the second surface opposite to the first surface. The fluid inside the bag is preferably heated with a heat source.Type: GrantFiled: December 12, 2014Date of Patent: July 2, 2019Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Toshikazu Shigetomi, Masayoshi Suhara, Morimasa Ishida, Shuhei Muto
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Patent number: 10288584Abstract: The present invention provides a method for locating a machining position in a repair material that is arranged on a member including a machined portion formed by predetermined machining, the method including: a step of arranging a marker including a portion having a different propagation characteristic of an ultrasonic wave from that of a peripheral portion in the machined portion existing in the member before the repair material is arranged on the member; and a step of applying the ultrasonic wave to the member covered with the repair material and locating the machining position at a position of the marker captured by the ultrasonic wave after the repair material is arranged on the member.Type: GrantFiled: October 6, 2015Date of Patent: May 14, 2019Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Toshikazu Shigetomi, Masatsugu Shimizu, Ryuichi Nagase, Morimasa Ishida, Shuhei Muto
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Patent number: 10202202Abstract: The present invention provides a method for repairing a lightning protection material that is made of a metal material and is provided along a surface of a member formed by using a fiber reinforced resin includes: bonding a repair material made of a metal material over a lost region of the member where the lightning protection material is lost by using a liquid adhesive and a sheet-shaped holder that contains and holds the adhesive and is arranged at the lost region.Type: GrantFiled: October 6, 2015Date of Patent: February 12, 2019Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Toshikazu Shigetomi, Masayoshi Suhara, Morimasa Ishida, Shuhei Muto
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Publication number: 20180354604Abstract: The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes: a repairing material disposing step of disposing a repairing patch 21 including a resistance heating element 23 and a carbon fiber reinforced resin, and an adhesive 22A including a thermosetting resin before being hardened for bonding the repairing patch 21 on the repair target portion 14; and a heating-hardening step of heating and hardening the thermosetting resin of the adhesive 22A by causing the resistance heating element 23 to generate heat through supply of electricity thereto.Type: ApplicationFiled: August 22, 2018Publication date: December 13, 2018Inventors: Kiwamu Arikawa, Masayoshi Suhara, Hiroyuki Iseki, Shuhei Muto
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Patent number: 10065727Abstract: The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes: a repairing material disposing step of disposing a repairing patch 21 including a resistance heating element 23 and a carbon fiber reinforced resin, and an adhesive 22A including a thermosetting resin before being hardened for bonding the repairing patch 21 on the repair target portion 14; and a heating-hardening step of heating and hardening the thermosetting resin of the adhesive 22A by causing the resistance heating element 23 to generate heat through supply of electricity thereto.Type: GrantFiled: March 27, 2014Date of Patent: September 4, 2018Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kiwamu Arikawa, Masayoshi Suhara, Hiroyuki Iseki, Shuhei Muto
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Patent number: 9815546Abstract: A method for repairing a honeycomb core sandwich structural body according to the present invention is a method in which a damaged portion that is formed in a honeycomb core sandwich structural body where a honeycomb structured core is held between a first outer skin and a second outer skin and that reaches the core through the first outer skin is repaired, the method including: a repair material mounting step of mounting a repair material on the damaged portion, the repair material including a patch that covers an opening of the damaged portion, and one or a plurality of braces that support the patch; a patch bonding step of bonding the patch to the first outer skin; and a brace bonding step of bonding the brace to the second outer skin or the core.Type: GrantFiled: March 21, 2014Date of Patent: November 14, 2017Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kotoyo Mizuno, Toshikazu Shigetomi, Hideaki Tanaka, Morimasa Ishida, Shuhei Muto
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Patent number: 9751266Abstract: The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes a repairing material disposing step of disposing a repairing patch 20 and an adhesive 21A to the repair target portion 14; and a heating-hardening step of heating and hardening the adhesive 21A by irradiating it with electromagnetic waves.Type: GrantFiled: March 27, 2014Date of Patent: September 5, 2017Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kiwamu Arikawa, Masayoshi Suhara, Hiroyuki Iseki, Shuhei Muto
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Patent number: 9475238Abstract: The present invention relates to a repair method using a pre-cured repairing patch, and a repaired product obtained from repairing using the repairing patch, and the present invention securely bonds a repairing patch, where an out-of-plane stiffness is required, to a repair target. In order to cover a repair target portion 23 formed in an outer panel 2 with a repairing patch 30, and bond the repairing patch 30 to a repair target, repairing plates 31, 32 that are formed of fibers and thermosetting resin, and pre-cured before repairing are used as the repairing patch 30, and a laminating step S4 of laminating the repairing plates 31, 32, and a bonding step S7 of bonding the repairing plates 31, 32 to each other are performed.Type: GrantFiled: March 27, 2014Date of Patent: October 25, 2016Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Masayoshi Suhara, Toshikazu Shigetomi, Hideaki Tanaka, Morimasa Ishida, Shuhei Muto
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Patent number: 9428012Abstract: Two open sipes are formed at a tire circumferential direction central side of a block, and closed sipes are formed in the block at both tire circumferential direction sides of the two open sipes. The depth of the open sipes is set in a range of 50 to 70% times the depth of a first circumferential direction main groove, and the depth dimension of the closed sipe is set in a range of 105 to 140% times the depth dimension of the open sipes. Accordingly high performance on ice is obtained while securing block rigidity.Type: GrantFiled: January 19, 2010Date of Patent: August 30, 2016Assignee: BRIDGESTONE CORPORATIONInventor: Shuhei Muto
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Patent number: 9387636Abstract: A repair method according to the present invention is a method for repairing a honeycomb core sandwich panel, the method including: a repair patch disposing step of disposing a repair patch and an adhesive on at least one of a first surface and a second surface of the panel, the first outer skin being located on the first surface, and the second outer skin being located on the second surface; a panel restraining step of sandwiching the panel and the repair patch from both surface sides of the first surface and the second surface and thereby restraining the panel; and a heating step (thermal curing step) of heating the adhesive while the panel is restrained.Type: GrantFiled: March 27, 2014Date of Patent: July 12, 2016Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Katsumi Takagi, Masayoshi Suhara, Shuhei Muto
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Patent number: 9365282Abstract: A method of repairing a composite material is provided in which a frustum-shaped portion of a composite material is removed, and the composite material and a repair material are bonded with each other while evacuating. The repair method includes step S2 of removing a damaged part 11 from the front side so as to pass through in the thickness direction while leaving a support wall protruding inward in the radial direction from the periphery of the top face of the frustum-shaped portion; step S3 of sealing the back side by placing a sealing plate, which is inserted from the front side into a through hole formed by the removing step, on the support wall; step S5 of placing the repair material through an adhesive on the composite material where the frustum-shaped portion has been removed; and step S6 of evacuating in a state in which the front side is sealed.Type: GrantFiled: November 14, 2013Date of Patent: June 14, 2016Assignee: MITSUBISHI AIRCRAFT CORPORATIONInventors: Toshikazu Shigetomi, Masayoshi Suhara, Morimasa Ishida, Shuhei Muto
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Publication number: 20160137310Abstract: The present invention provides a method for repairing a lightning protection material that is made of a metal material and is provided along a surface of a member formed by using a fiber reinforced resin includes: bonding a repair material made of a metal material over a lost region of the member where the lightning protection material is lost by using a liquid adhesive and a sheet-shaped holder that contains and holds the adhesive and is arranged at the lost region.Type: ApplicationFiled: October 6, 2015Publication date: May 19, 2016Inventors: Toshikazu SHIGETOMI, Masayoshi SUHARA, Morimasa ISHIDA, Shuhei MUTO
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Publication number: 20160137316Abstract: The present invention provides a method for locating a machining position in a repair material that is arranged on a member including a machined portion formed by predetermined machining, the method including: a step of arranging a marker including a portion having a different propagation characteristic of an ultrasonic wave from that of a peripheral portion in the machined portion existing in the member before the repair material is arranged on the member; and a step of applying the ultrasonic wave to the member covered with the repair material and locating the machining position at a position of the marker captured by the ultrasonic wave after the repair material is arranged on the member.Type: ApplicationFiled: October 6, 2015Publication date: May 19, 2016Inventors: Toshikazu SHIGETOMI, Masatsugu SHIMIZU, Ryuichi NAGASE, Morimasa ISHIDA, Shuhei MUTO
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Publication number: 20150217523Abstract: The present invention provides a device which can uniformize heat distribution by using an existing heater mat for repairing or joining members. A heat dispersion device includes a bag with a fluid sealed inside, and is disposed on a second surface of a heater mat which has a first surface to be directed toward an object to be heated and the second surface opposite to the first surface. The fluid inside the bag is preferably heated with a heat source.Type: ApplicationFiled: December 12, 2014Publication date: August 6, 2015Inventors: Toshikazu SHIGETOMI, Masayoshi SUHARA, Morimasa ISHIDA, Shuhei MUTO
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Publication number: 20140295123Abstract: A method for repairing a honeycomb core sandwich structural body according to the present invention is a method in which a damaged portion that is formed in a honeycomb core sandwich structural body where a honeycomb structured core is held between a first outer skin and a second outer skin and that reaches the core through the first outer skin is repaired, the method including: a repair material mounting step of mounting a repair material on the damaged portion, the repair material including a patch that covers an opening of the damaged portion, and one or a plurality of braces that support the patch; a patch bonding step of bonding the patch to the first outer skin; and a brace bonding step of bonding the brace to the second outer skin or the core.Type: ApplicationFiled: March 21, 2014Publication date: October 2, 2014Applicant: Mitsubishi Aircraft CorporationInventors: Kotoyo MIZUNO, Toshikazu SHIGETOMI, Hideaki TANAKA, Morimasa ISHIDA, Shuhei MUTO
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Publication number: 20140290831Abstract: To reduce a time required for repairing a honeycomb core sandwich panel. A repair method according to the present invention is a repair method, in which a repair patch 20 is disposed on a repair target portion that exists on the side of a repair surface 1A of a honeycomb core sandwich panel 1, the honeycomb core sandwich panel 1 being formed by sandwiching a honeycomb structured core 10 with a plurality of cells between skins 11 and 12, the method including: a heating step of heating the repair patch 20; and a cooling step of cooling the honeycomb core sandwich panel 1 from the side of a second surface 1B opposing the repair surface 1A of the honeycomb core sandwich panel 1.Type: ApplicationFiled: March 20, 2014Publication date: October 2, 2014Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kohei HATANO, Masayoshi SUHARA, Toshikazu SHIGETOMI, Shuhei MUTO
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Publication number: 20140295125Abstract: The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes: a repairing material disposing step of disposing a repairing patch 21 including a resistance heating element 23 and a carbon fiber reinforced resin, and an adhesive 22A including a thermosetting resin before being hardened for bonding the repairing patch 21 on the repair target portion 14; and a heating-hardening step of heating and hardening the thermosetting resin of the adhesive 22A by causing the resistance heating element 23 to generate heat through supply of electricity thereto.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kiwamu ARIKAWA, Masayoshi SUHARA, Hiroyuki ISEKI, Shuhei MUTO
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Publication number: 20140290832Abstract: The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1, includes a repairing material disposing step of disposing a repairing patch 20 and an adhesive 21A to the repair target portion 14; and a heating-hardening step of heating and hardening the adhesive 21A by irradiating it with electromagnetic waves.Type: ApplicationFiled: March 27, 2014Publication date: October 2, 2014Applicant: MITSUBISHI AIRCRAFT CORPORATIONInventors: Kiwamu ARIKAWA, Masayoshi SUHARA, Hiroyuki ISEKI, Shuhei MUTO