Patents by Inventor Hiromichi Akiyama
Hiromichi Akiyama 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: 20240399883Abstract: The disclosed vehicle drive device (10) includes: motor housings (11,12), a gearbox housing (13), an inverter case (14), and a PN line (9). The motor housings (11,12) form respective exteriors of a left motor (1) and a right motor (2) that drive left and right wheels of a vehicle with electric power of a battery. The gearbox housing (13) incorporates therein a gearbox (3) that amplifies torque of the left and right motors and that transmits the amplified torque to the left and right wheels, is sandwiched between the left and right motor housings (11,12), and is offset in a front-rear direction from the left and right motor housings (11,12). The inverter case (14) incorporates therein a pair of semiconductor modules (6,7) and is arranged above the left and right motor housings (11,12). The PN line (9) connects the battery to the semiconductor modules (6,7) from a lower surface side of the inverter case (14) so as to pass through a first space (41).Type: ApplicationFiled: September 28, 2022Publication date: December 5, 2024Applicants: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MEIDENSHA CORPORATIONInventors: Tsuyoshi TAKAHASHI, Kiminobu TERAO, Yosuke MORIMOTO, Takuya OGASAWARA, Hiromichi AKIYAMA, Dai OONO
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Publication number: 20240399882Abstract: The disclosed vehicle drive device (10) includes: left and right motors (1,2) that drive left and right wheels of the vehicle; a gearbox (3) that is sandwiched between the left and right motors (1,2); and an inverter (4) that is arranged in a mounting space (S) over the left and right motors (1,2) and the gearbox (3). The gearbox (3) forms, in conjunction with respective motor housings (11,12) of the left and right motors (1,2), a depressed portion (8) depressed downward. The inverter (4) includes a cover (15) that is in a flat-plate shape, is attached to a tray unit (16), and covers the capacitor (5) and a semiconductor module (6) from above the capacitor (5) and the semiconductor module (6). The capacitor (5) is attached to a lower surface of the cover (15) and is arranged in the depressed portion (8). The semiconductor module (6) is attached to the lower surface of the cover (15) and is displaced from each of the capacitor (5) and the rotating shafts (C) of the motors (1,2) when seen from above.Type: ApplicationFiled: September 28, 2022Publication date: December 5, 2024Applicants: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MEIDENSHA CORPORATIONInventors: Tsuyoshi TAKAHASHI, Kiminobu TERAO, Yosuke MORIMOTO, Takuya OGASAWARA, Hiromichi AKIYAMA, Dai OONO
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Publication number: 20240397679Abstract: A vehicle drive device (10) includes: a motor unit (1) that includes a motor for driving mounted on a vehicle and a gear mechanism that transmits torque of the motor to each of left and right wheels of the vehicle; and an inverter (4) that is arranged over the motor unit (1) and that includes a capacitor (5) smoothing electricity and a semiconductor module (6) including a plurality of switching elements, wherein the inverter (4) includes a tray unit (16) that accommodates the capacitor (5) and the semiconductor module (6), and a cover (15) that is in a flat-plate shape, is attached to the tray unit (16), and covers the capacitor (5) and the semiconductor module (6) from above the capacitor (5) and the semiconductor module (6), the cover(15) is integrated with a cooling unit (20) through which a coolant for cooling the inverter (4) flows, and the capacitor (5) and the semiconductor module (6) are attached to a lower surface (17) of the cover (15).Type: ApplicationFiled: September 28, 2022Publication date: November 28, 2024Applicants: MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA, MEIDENSHA CORPORATIONInventors: Tsuyoshi TAKAHASHI, Kiminobu TERAO, Yosuke MORIMOTO, Takuya OGASAWARA, Hiromichi AKIYAMA, Dai OONO
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Patent number: 11945179Abstract: The preset invention is to mold a laminate at a high accuracy by appropriately generating slippage between fiber sheets of the laminate at bending. A method for molding a laminate includes a step in which a plurality of gripping parts, which are arranged apart from each other, grip an area, wherein slippage between fiber sheets is prevented, in a plate-shaped laminate including a plurality of fiber sheets laminated each other; a step in which the plurality of gripping parts grip the area wherein slippage between the fiber sheets is prevented, while maintaining the state wherein relative moving of the area of the laminate and the gripping parts is prevented; and a step in which the gripping parts move so as to subject the laminate to bending.Type: GrantFiled: December 26, 2019Date of Patent: April 2, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Toshiki Kitazawa, Homare Yamato, Masahiko Shimizu, Hiromichi Akiyama, Akihiro Terasaka
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Patent number: 11926131Abstract: A composite material is capable of suppressing decrease in the strength, which is caused by bending of fibers of a skin material during the time when the composite material is cured. A composite material is provided with a honeycomb core, a first skin material, a second skin material, a thunder-resistant mesh and a resin material; and the resin material is not arranged in a neighborhood portion which is the region corresponding to the region at the front end of the honeycomb core. A first film adhesive is arranged between the first skin material and the honeycomb core; a second film adhesive is arranged between the second skin material and the honeycomb core; and a fourth film adhesive is arranged in the neighborhood portion of the resin material in a weight per square meter, which is lower than those of the first film adhesive and the second film adhesive.Type: GrantFiled: February 26, 2019Date of Patent: March 12, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazuki Noma, Hiromichi Akiyama, Toshio Kozasa, Masayuki Kanemasu, Shunichi Morishima
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Patent number: 11897638Abstract: A pressurized structure panel for forming a pressurized space pressurized inside includes a panel structure having a panel body to receive the pressure, a rib provided in the panel body, and a hollow part formed by the panel body and the rib, a radiation shielding material provided in the hollow part, and a debris bumper provided outside the panel structure and provided spaced apart from the panel structure by a certain spacing. The radiation shielding material includes a material containing hydrogen atoms in molecules.Type: GrantFiled: July 11, 2022Date of Patent: February 13, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiromichi Akiyama, Naoto Azusawa, Yutaka Terada
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Patent number: 11872779Abstract: A method of the invention produces a composite material conjugate in which a first composite material and a second composite material are adhered without using an adhesive, wherein a first prepreg laminate to which a release member is attached is cured to form the first composite material, the release member being made of a material that does not transfer silicone and fluorine to the first prepreg laminate, after detaching the release member from the first composite material, surface treatment that imparts polar functional groups to the surface of the first composite material to which the release member was bonded is carried out to activate the surface, a second prepreg laminate is placed directly on the activated surface of the first composite material, and the second prepreg laminate is cured to form a second composite material adhered to the first composite material.Type: GrantFiled: May 26, 2020Date of Patent: January 16, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiromichi Akiyama, Kiyoka Takagi
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Patent number: 11804750Abstract: The motor includes a sealing material (dry body of a liquid gasket 41) interposed between a joint surface 3b of a motor housing 3 and a joint surface of an inverter housing, and an O-ring 39. The O-ring 39 is interposed between the motor housing 3 and the inverter housing and disposed so as to surround the communication port 3a1 of the refrigerant flow path 3a. The motor housing 3 includes a groove 3d disposed between the sealing material and the O-ring 39 on the joint surface 3b in a surface direction of the joint surface 3b.Type: GrantFiled: March 9, 2021Date of Patent: October 31, 2023Assignee: MEIDENSHA CORPORATIONInventor: Hiromichi Akiyama
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Publication number: 20230312850Abstract: A method for producing a prepreg in which a reinforcing fiber base material is impregnated with a resin to produce a prepreg, wherein said method comprises: a step for preparing a first resin, which is the resin containing a filler, and a second resin, which is the resin not containing a filler; a step for arranging the second resin adjacent to the reinforcing fiber base material; a step for arranging the first resin adjacent to the reinforcing fiber base material and/or the second resin; and a step for impregnating the reinforcing fiber base material with the resin of the first resin and the second resin.Type: ApplicationFiled: September 10, 2021Publication date: October 5, 2023Inventors: Kiichi NISHIGUCHI, Hiromichi AKIYAMA
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Publication number: 20230294128Abstract: The purpose of the present disclosure is to provide a pre-coating processing method and a pre-coating processing system (1) for fiber-reinforced thermoplastic member, which can achieve the coating adherence required in the field of aircraft. In a pre-coating processing method according to the present disclosure, a to-be-coated surface of a fiber-reinforced thermoplastic plastic member (2) is subjected to an activation treatment: in which the to-be-coated surface is activated under a condition such that the surface free energy of the to-be-coated surface immediately after the activation treatment reaches at least 70 mJ/m2; and in which the to-be-coated surface is heated to a temperature at which the modulus of elasticity of the to-be-coated surface becomes lower than that at normal temperature.Type: ApplicationFiled: January 21, 2021Publication date: September 21, 2023Inventors: Hiromichi AKIYAMA, Akihisa OKUDA
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Publication number: 20230271375Abstract: A shaping device which forms a fiber sheet into a shape having a shape change section, said shaping device comprising: a shaping mold which is provided to one side of the fiber sheet and serves as a mold for shaping the fiber sheet; a supporting member which has greater rigidity than the fiber sheet and is provided to the other side of the fiber sheet and to an area in which the shape change section is formed; a covering member that covers the fiber sheet; and a pressing device that presses the fiber sheet onto the shaping mold by means of the covering member. The pressing device is a suction device that suctions the atmosphere from between the shaping mold and the covering member.Type: ApplicationFiled: September 1, 2020Publication date: August 31, 2023Inventors: Yusei KONDO, Masayuki KANEMASU, Hiromichi AKIYAMA, Kazuki NOMA, Toshio KOZASA
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Patent number: 11673351Abstract: A method is for manufacturing a honeycomb structure including a core material in which a hole is formed to penetrate in a thickness direction and is arranged in a plane direction, and a skin material that is stacked on a surface of the core material. The skin material includes a thermosetting resin. The method includes half-curing the thermosetting resin by placing the skin material in a bag and heating the skin material in a state where an inside of the bag is evacuated and an outside of the bag is under an atmospheric pressure; stacking the skin material in which the thermosetting resin is half-cured onto a side of the surface of the core material; and bonding and integrating the core material and the skin material with each other by pressurizing and heating the stacked core material and skin material with the use of a sealing pressurizing heating facility.Type: GrantFiled: May 10, 2018Date of Patent: June 13, 2023Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazuki Noma, Masayuki Yamashita, Masayuki Kanemasu, Mikoto Omori, Hiromichi Akiyama, Toshio Kozasa, Shunichi Morishima
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Publication number: 20230131087Abstract: The motor includes a sealing material (dry body of a liquid gasket 41) interposed between a joint surface 3b of a motor housing 3 and a joint surface of an inverter housing, and an O-ring 39. The O-ring 39 is interposed between the motor housing 3 and the inverter housing and disposed so as to surround the communication port 3a1 of the refrigerant flow path 3a. The motor housing 3 includes a groove 3d disposed between the sealing material and the O-ring 39 on the joint surface 3b in a surface direction of the joint surface 3b.Type: ApplicationFiled: March 19, 2020Publication date: April 27, 2023Applicant: MEIDENSHA CORPORATIONInventor: Hiromichi AKIYAMA
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Publication number: 20230020582Abstract: A pressurized structure panel for forming a pressurized space pressurized inside includes a panel structure having a panel body to receive the pressure, a rib provided in the panel body, and a hollow part formed by the panel body and the rib, a radiation shielding material provided in the hollow part, and a debris bumper provided outside the panel structure and provided spaced apart from the panel structure by a certain spacing. The radiation shielding material includes a material containing hydrogen atoms in molecules.Type: ApplicationFiled: July 11, 2022Publication date: January 19, 2023Inventors: Hiromichi AKIYAMA, Naoto AZUSAWA, Yutaka TERADA
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Publication number: 20220411338Abstract: In a processing method for a ceramic-based composite material in which the ceramic-based composite material is molded by layering sheets obtained by impregnating reinforced fibers with a slurry containing ceramic powder and calcining the sheets after curing, the processing method includes a step of layering the sheets in a layering direction to form a laminate, and a step of covering the laminate with a vacuum bag and evacuating the inside of the vacuum bag to mold a cured laminate. In the step of molding the cured laminate, a slurry-removing material configured to absorb excess slurry is disposed with respect to the laminate, and a degassing circuit member provided on at least one side of the laminate and configured to discharge air bubbles generated inside the laminate is disposed with respect to the laminate.Type: ApplicationFiled: June 23, 2022Publication date: December 29, 2022Inventors: Hiromichi AKIYAMA, Yasuhiko TSURU
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Publication number: 20220380264Abstract: A method of forming a ceramic matrix composite with being impregnated with molten metal includes: stacking a plurality of fiber layers that are layers of reinforced fibers impregnated with base resin to form a laminate in which a matrix layer containing fibers extending in a direction of impregnation with the molten metal is disposed between the fiber layers; forming an impregnation path in the matrix layer entirely in an in-plane direction perpendicular to a direction of the stacking in the laminate by carbonizing the formed laminate; and impregnating, with the molten metal, the laminate in which the impregnation path has been formed.Type: ApplicationFiled: May 25, 2022Publication date: December 1, 2022Inventors: Hiromichi AKIYAMA, Kiichi NISHIGUCHI, Takahiro SEKIGAWA, Akira FUKUSHIMA, Takeshi YOSHIKAWA, Hisao ESAKA
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Patent number: 11498290Abstract: The present invention addresses the problem of providing a method for molding, using a honeycomb core, a composite material structure that is high-quality, low cost, and leaves less voids. The present disclosure addresses the problem of providing a method for molding, using a honeycomb core, a composite material structure with which it is possible to reduce dimples in a composite material skin at low cost. According to a method for molding a composite material structure of the present disclosure, an uncured composite material honeycomb sandwich panel in which prepreg is laminated on upper and lower surfaces of a honeycomb core via an adhesive is covered with a vacuum bag and placed in an autoclave. After that, the vacuum bag is evacuated and, while the evacuation is being continued, is heated and pressurized by the autoclave to cure a matrix resin of the prepreg and achieve adhesion to the honeycomb core.Type: GrantFiled: February 26, 2019Date of Patent: November 15, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Kazuki Noma, Hiromichi Akiyama, Toshio Kozasa, Masayuki Kanemasu, Shunichi Morishima
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Patent number: 11458720Abstract: The embodiment includes: a planar graphite heater; a clamp device that moves the graphite heater, which is arranged between a first bonding surface W1a of a first composite material member and a second bonding surface of a second composite material member facing the first bonding surface, in a traveling direction with the graphite heater being in contact with the first bonding surface and the second bonding surface; and a control unit that controls the graphite heater to heat the first bonding surface and the second bonding surface while the graphite heater is in contact with the first bonding surface and the second bonding surface.Type: GrantFiled: July 29, 2021Date of Patent: October 4, 2022Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Akihisa Okuda, Hiromichi Akiyama
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Publication number: 20220258433Abstract: An object is to provide a composite pre-bonding treatment method that stabilizes quality of a bonded part. The present disclosure provides a composite pre-bonding treatment method performed when bonding a composite material to a member. The method includes: (S2) attaching an absorber adapted to absorb a contaminant to a surface of a prepreg laminate that is a precursor of the composite material; (S3) covering the prepreg laminate with a packaging material from above the absorber; (S4) vacuuming the packaging material and heating the prepreg laminate at a temperature lower than a curing temperature of a prepreg; (S5) then removing the packaging material; (S6) peeling off the absorber; (S7) attaching, to a surface of the prepreg laminate with the absorber peeled off, a release member that does not transfer silicone or fluorine to a resin, and then (S9) curing the prepreg laminate to mold the composite material; and (S11) peeling off the release member from the composite material before bonding the member.Type: ApplicationFiled: June 3, 2020Publication date: August 18, 2022Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hiromichi AKIYAMA, Kiyoka TAKAGI
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Patent number: D1009937Type: GrantFiled: June 9, 2021Date of Patent: January 2, 2024Assignees: MEIDENSHA CORPORATION, NISSAN MOTOR CO., LTD.Inventors: Takahiro Shimekake, Hiromichi Akiyama, Joji Matsubara, Shinsuke Horibe, Daiji Nakagawa, Sakae Ishida