Patents by Inventor Ryota Tanabe
Ryota Tanabe 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: 10135356Abstract: A power conversion apparatus includes a capacitor and a heat dissipation member for cooling the capacitor. The capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged. The capacitor includes a capacitor element which includes a dielectric body and a metal layer formed on a surface of the dielectric body, an electrode part connected to the metal layer and a bus bar connected to the electrode part. Part of the bus bar is interposed in the arranging direction between the heat dissipation member and the capacitor element.Type: GrantFiled: July 20, 2017Date of Patent: November 20, 2018Assignee: DENSO CORPORATIONInventors: Kazuya Takeuchi, Tetsuya Matsuoka, Ryota Tanabe
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Publication number: 20180332732Abstract: A power conversion apparatus includes a semiconductor module, an electronic component, a cooling member, a casing and a pressurizing member. The electronic component includes a load application part that receives a load caused by pressurizing force on a surface in a pressurizing member side with respect to the lamination direction; a load supporting part that comes into contact with a contact part of the casing on a surface opposite to the pressurizing member side with respect to the lamination direction; and a fastening part fastened to a casing fastening part. The load supporting part is disposed between the load application part and the fastening part; moment of force around the load supporting part is produced in the electronic component by the load applied to the load application part; and the moment causes the electronic component to be pressed towards a pressed part of the casing.Type: ApplicationFiled: May 14, 2018Publication date: November 15, 2018Applicant: DENSO CORPORATIONInventors: Naoki HIRASAWA, Ryota TANABE, Taijiro MOMOSE, Hiromi ICHIJO
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Patent number: 10070564Abstract: An electric power converter performing power conversion includes a plurality of semiconductor modules with built-in semiconductor elements, a plurality of cooling tubes stacked together with the plurality of semiconductor modules, and a pressure member made of metal. The pressure member has a pressing surface for pressing an outer cooling tube in order to press-contact the plurality of cooling tubes and the plurality of semiconductor modules in a stacking direction, and a heat receiving surface that receives heat generated from a capacitor that is an electronic component which is different from the plurality of semiconductor modules, by thermal conduction.Type: GrantFiled: November 16, 2016Date of Patent: September 4, 2018Assignee: DENSO CORPORATIONInventors: Kazuya Takeuchi, Tetsuya Matsuoka, Ryota Tanabe
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Publication number: 20180109253Abstract: An electric power conversion apparatus includes at least one semiconductor module, a capacitor, a pair of positive and negative busbars and an insulator. The positive busbar includes a positive busbar base protruding from the capacitor in a Y direction and at least one positive busbar terminal extending perpendicular to an X direction. The negative busbar includes a negative busbar base protruding from the capacitor in the Y direction and at least one negative busbar terminal extending perpendicular to the X direction. The positive and negative busbar bases are arranged to have their major surfaces facing each other in a Z direction. The positive and negative busbar terminals at least partially overlap each other in the X direction with the insulator interposed therebetween. The at least one semiconductor module has a pair of positive and negative power terminals connected respectively to the positive and negative busbar terminals.Type: ApplicationFiled: October 16, 2017Publication date: April 19, 2018Applicant: DENSO CORPORATIONInventors: Ryota TANABE, Kazuya TAKEUCHI
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Publication number: 20180070480Abstract: A power conversion apparatus includes: a semiconductor module, an electronic component, a plurality of cooling pipes and a casing that accommodates the semiconductor module, the electronic component and the cooling pipes. An abutting surface is provided at a part of the casing, in which the electronic component comes into contact with the abutting surface. A pressurizing member pressurizes the semiconductor module in a first direction extending from the semiconductor module to the electronic component. The electronic component includes a part body and a wing portion and the wing portion protrudes from the part body at least either one side of both sides thereof with respect to a second direction perpendicular to the first direction, and comes into contact with the abutting surface from a semiconductor module side with respect to the first direction.Type: ApplicationFiled: September 5, 2017Publication date: March 8, 2018Applicants: DENSO CORPORATION, TOKIN CORPORATIONInventors: Naoki HIRASAWA, Ryota TANABE, Takashi KAWASHIMA, Takashi YANBE, Masahiro KONDOU
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Publication number: 20170317605Abstract: A power conversion apparatus includes a capacitor and a heat dissipation member for cooling the capacitor. The capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged. The capacitor includes a capacitor element which includes a dielectric body and a metal layer formed on a surface of the dielectric body, an electrode part connected to the metal layer and a bus bar connected to the electrode part. Part of the bus bar is interposed in the arranging direction between the heat dissipation member and the capacitor element.Type: ApplicationFiled: July 20, 2017Publication date: November 2, 2017Applicant: DENSO CORPORATIONInventors: Kazuya TAKEUCHI, Tetsuya MATSUOKA, Ryota TANABE
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Patent number: 9773759Abstract: An electric power converter includes a semiconductor module, an electronic component, a plurality of cooling tubes, a case, a main pressure member for pressing a stacked semiconductor section in a stacking direction, and a sub-pressure member for pressing a stacked component section in the stacking direction. The stacked semiconductor section and the stacked component section are stacked in line. A pressing force of the main pressure member is greater than a pressure pressing force of the sub-pressure member. The main pressure member is disposed at an end portion of the stacked component section far from the stacked semiconductor section. A supporting portion that supports the stacked semiconductor section from the stacked component section side is disposed in the case so as to prevent the pressing force of the main pressure member from acting on the stacked component section.Type: GrantFiled: November 16, 2016Date of Patent: September 26, 2017Assignee: DENSO CORPORATIONInventors: Naoki Hirasawa, Ryota Tanabe, Hiromi Ichijo, Takashi Kawashima
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Patent number: 9735700Abstract: A power conversion apparatus includes a capacitor and a heat dissipation member for cooling the capacitor. The capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged. The capacitor includes a capacitor element which includes a dielectric body and a metal layer formed on a surface of the dielectric body, an electrode part connected to the metal layer and a bus bar connected to the electrode part. Part of the bus bar is interposed in the arranging direction between the heat dissipation member and the capacitor element.Type: GrantFiled: February 2, 2016Date of Patent: August 15, 2017Assignee: DENSO CORPORATIONInventors: Kazuya Takeuchi, Tetsuya Matsuoka, Ryota Tanabe
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Patent number: 9713293Abstract: An electric power converter includes a semiconductor module constituting a power conversion circuit, a capacitor electrically connected to the semiconductor module, and a cooling member for cooling the capacitor. The capacitor includes an element body provided with internal electrode, and a pair of end-face-electrodes provided on both end faces of the element body and connected to the internal electrode. The pair of end-face-electrodes are connected with a pair of bus bars, respectively, in a manner of surface contact. The capacitor is disposed in a state where one of the pair of end-face-electrodes is facing the cooling member. The end-face-electrode facing the cooling member is in contact with the cooling member via the bus bar.Type: GrantFiled: October 21, 2015Date of Patent: July 18, 2017Assignee: DENSO CORPORATIONInventors: Kazuya Takeuchi, Makoto Okamura, Yuuichi Handa, Naoki Hirasawa, Hiromi Ichijo, Ryota Tanabe, Tetsuya Matsuoka
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Publication number: 20170142860Abstract: An electric power converter performing power conversion includes a plurality of semiconductor modules with built-in semiconductor elements, a plurality of cooling tubes stacked together with the plurality of semiconductor modules, and a pressure member made of metal. The pressure member has a pressing surface for pressing an outer cooling tube in order to press-contact the plurality of cooling tubes and the plurality of semiconductor modules in a stacking direction, and a heat receiving surface that receives heat generated from a capacitor that is an electronic component which is different from the plurality of semiconductor modules, by thermal conduction.Type: ApplicationFiled: November 16, 2016Publication date: May 18, 2017Applicant: DENSO CORPORATIONInventors: Kazuya TAKEUCHI, Tetsuya MATSUOKA, Ryota TANABE
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Publication number: 20170141082Abstract: An electric power converter includes a semiconductor module, an electronic component, a plurality of cooling tubes, a case, a main pressure member for pressing a stacked semiconductor section in a stacking direction, and a sub-pressure member for pressing a stacked component section in the stacking direction. The stacked semiconductor section and the stacked component section are stacked in line. A pressing force of the main pressure member is greater than a pressure pressing force of the sub-pressure member. The main pressure member is disposed at an end portion of the stacked component section far from the stacked semiconductor section. A supporting portion that supports the stacked semiconductor section from the stacked component section side is disposed in the case so as to prevent the pressing force of the main pressure member from acting on the stacked component section.Type: ApplicationFiled: November 16, 2016Publication date: May 18, 2017Applicant: DENSO CORPORATIONInventors: Naoki HIRASAWA, Ryota TANABE, Hiromi ICHIJO, Takashi KAWASHIMA
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Publication number: 20160241155Abstract: A power conversion apparatus includes a capacitor and a heat dissipation member for cooling the capacitor. The capacitor and the heat dissipation member are pressed in an arranging direction in which the capacitor and the heat dissipation member are arranged. The capacitor includes a capacitor element which includes a dielectric body and a metal layer formed on a surface of the dielectric body, an electrode part connected to the metal layer and a bus bar connected to the electrode part. Part of the bus bar is interposed in the arranging direction between the heat dissipation member and the capacitor element.Type: ApplicationFiled: February 2, 2016Publication date: August 18, 2016Applicant: DENSO CORPORATIONInventors: Kazuya TAKEUCHI, Tetsuya MATSUOKA, Ryota TANABE
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Publication number: 20160227677Abstract: An electric power converter includes a semiconductor module, a reactor having a coil and a core, and a cooler for cooling the semiconductor module and the reactor. The cooler has a coolant passage member having a coolant flow path. The coil of the reactor has an exposed coil portion exposed from the core. The exposed coil portion is in contact with the coolant passage member. The core has a core end face disposed flush with the exposed coil portion, and both the exposed coil portion and the core end face are in surface contact with the coolant passage member.Type: ApplicationFiled: January 29, 2016Publication date: August 4, 2016Applicant: DENSO CORPORATIONInventors: Naoki HIRASAWA, Ryota TANABE, Tetsuya MATSUOKA, Kazuya TAKEUCHI, Akira SAKAMOTO
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Publication number: 20160157381Abstract: An electric power converter includes a semiconductor module constituting a power conversion circuit, a capacitor electrically connected to the semiconductor module, and a cooling member for cooling the capacitor. The capacitor includes an element body provided with internal electrode, and a pair of end-face-electrodes provided on both end faces of the element body and connected to the internal electrode. The pair of end-face-electrodes are connected with a pair of bus bars, respectively, in a manner of surface contact. The capacitor is disposed in a state where one of the pair of end-face-electrodes is facing the cooling member. The end-face-electrode facing the cooling member is in contact with the cooling member via the bus bar.Type: ApplicationFiled: October 21, 2015Publication date: June 2, 2016Inventors: Kazuya TAKEUCHI, Makoto OKAMURA, Yuuichi HANDA, Naoki HIRASAWA, Hiromi ICHIJO, Ryota TANABE, Tetsuya MATSUOKA
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Patent number: 8888151Abstract: A collision load is appropriately absorbed even in a case that the collision load is intersectionally input from the oblique rear with respect to the vehicle longitudinal direction. Plural first to sixth corner portions provided at the rear end of an extension are arranged such as to be located at respective different positions along the vehicle longitudinal direction, wherein the first corner portion located at the vehicle transverse inner upper end is located the rearmost, and wherein the first to sixth corner portions and first to sixth edge lines, which form the rear end of the extension, are provided such as to be located at the rear in a spiral form from the first corner portion toward the vehicle front in order.Type: GrantFiled: May 20, 2013Date of Patent: November 18, 2014Assignee: Honda Motor Co., Ltd.Inventors: Masakazu Kashiwagi, Norikazu Matsuura, Hiroyoshi Watanabe, Ryota Tanabe
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Patent number: 8816809Abstract: A reactor is disclosed. The reactor is comprised of a housing, a solenoid coil, a center columnar member, and a core. The center columnar member provides first surfaces contacting with sandwich portions of the housing, and the core is comprised of resin including magnetic powder. The coil and the center columnar member are fixed in the core. A surface roughness (Rz2) of a second surface which contacts to the core is larger than a surface roughness (Rz1) of the first surfaces. The center columnar member further provides a basis surface of which roughness (Rz3) is smaller than the Rz2 and larger than the Rz1.Type: GrantFiled: July 27, 2012Date of Patent: August 26, 2014Assignees: Denso Corporation, Nec Tokin CorporationInventors: Kazuhiro Kosaka, Ryota Tanabe, Souichi Yoshinaga, Masahiko Yamashita, Seigo Satou, Mitsutoshi Kameda, Tsugio Takeda
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Publication number: 20130313840Abstract: A collision load is appropriately absorbed even in a case that the collision load is intersectionally input from the oblique rear with respect to the vehicle longitudinal direction. Plural first to sixth corner portions provided at the rear end of an extension are arranged such as to be located at respective different positions along the vehicle longitudinal direction, wherein the first corner portion located at the vehicle transverse inner upper end is located the rearmost, and wherein the first to sixth corner portions and first to sixth edge lines, which form the rear end of the extension, are provided such as to be located at the rear in a spiral form from the first corner portion toward the vehicle front in order.Type: ApplicationFiled: May 20, 2013Publication date: November 28, 2013Applicant: HONDA MOTOR CO., LTD.Inventors: Masakazu Kashiwagi, Norikazu Matsuura, Hiroyoshi Watanabe, Ryota Tanabe
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Publication number: 20130027163Abstract: A reactor is disclosed. The reactor is comprised of a housing, a solenoid coil, a center columnar member, and a core. The center columnar member provides first surfaces contacting with sandwich portions of the housing, and the core is comprised of resin including magnetic powder. The coil and the center columnar member are fixed in the core. A surface roughness (Rz2) of a second surface which contacts to the core is larger than a surface roughness (Rz1) of the first surfaces. The center columnar member further provides a basis surface of which roughness (Rz3) is smaller than the Rz2 and larger than the Rz1.Type: ApplicationFiled: July 27, 2012Publication date: January 31, 2013Applicants: NEC TOKIN CORPORATION, DENSO CORPORATIONInventors: Kazuhiro KOSAKA, Ryota Tanabe, Souichi Yoshinaga, Masahiko Yamashita, Seigo Satou, Mitsutoshi Kameda, Tsugio Takeda