Patents by Inventor Hirohito Matsui
Hirohito Matsui 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: 11199457Abstract: An measuring instrument for a physiological heat quantity emitted from a human body includes a heat flux sensor, and a calculator. The heat flux sensor includes a sensor main body portion and a moisture absorbing member. The sensor main body portion has multiple through holes penetrating through the sensor main body portion from a first surface to a second surface. The sensor main body portion is disposed on a human body such that the first surface is adjacent to the human body when in use, and outputs a sensor signal according to a heat flux passing through the sensor main body portion from the first surface toward the second surface. The moisture absorbing member is stacked on the second surface of the sensor main body portion. The calculator calculates the physiological heat quantity based on the sensor signal.Type: GrantFiled: July 17, 2019Date of Patent: December 14, 2021Assignees: DENSO CORPORATION, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hirohito Matsui, Toshikazu Harada, Norihito Higo
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Patent number: 10481008Abstract: In a radiant heat sensor, first and second thermoelectric members are alternately arrayed one by one in a direction along a first surface of a plate-shaped member so as to be separated from each other, and each of the first and second thermoelectric members configure a portion of the first surface. First conductor patterns extend the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure hot contact portions between the first and second thermoelectric members. Second conductor patterns extend along the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure cold contact portions between the first and second thermoelectric members.Type: GrantFiled: July 5, 2016Date of Patent: November 19, 2019Assignee: DENSO CORPORATIONInventors: Keita Saitou, Atusi Sakaida, Toshikazu Harada, Hirohito Matsui, Yukikatsu Ozaki
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Publication number: 20190339138Abstract: An measuring instrument for a physiological heat quantity emitted from a human body includes a heat flux sensor, and a calculator. The heat flux sensor includes a sensor main body portion and a moisture absorbing member. The sensor main body portion has multiple through holes penetrating through the sensor main body portion from a first surface to a second surface. The sensor main body portion is disposed on a human body such that the first surface is adjacent to the human body when in use, and outputs a sensor signal according to a heat flux passing through the sensor main body portion from the first surface toward the second surface. The moisture absorbing member is stacked on the second surface of the sensor main body portion. The calculator calculates the physiological heat quantity based on the sensor signal.Type: ApplicationFiled: July 17, 2019Publication date: November 7, 2019Inventors: Hirohito MATSUI, Toshikazu HARADA, Norihito HIGO
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Patent number: 10458825Abstract: A thermal flow-rate sensor includes: a first temperature sensor that detects the temperature at a specified location of the outer-wall surface of a pipe; a heat-transfer element that is arranged on the outer-wall surface of the pipe in a state separated from the first temperature sensor, and that exchanges heat with a measurement medium by heating or cooling the outer-wall surface of the pipe; a second temperature sensor that detects the temperature of a portion of the outer-wall surface of the pipe that is heated or cooled by the heat-transfer element; and a control unit that performs specified processing.Type: GrantFiled: February 8, 2016Date of Patent: October 29, 2019Assignee: DENSO CORPORATIONInventors: Yukikatsu Ozaki, Hirohito Matsui, Toshikazu Harada
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Patent number: 10122246Abstract: In a multi-gap rotating electric machine, a side stator coil is received in a side space formed in a housing to connect radially inner and radially outer stator coils across a rotor. A cooling oil flow adjustment member is provided to adjust flow of cooling oil in the side space. The adjustment member has cooling oil guide channels formed on an uneven surface thereof facing the side stator coil. When viewed along a central axis of a rotating shaft: on an upper apart of the uneven surface which is located above the central axis, the cooling oil guide channels spread from a reference line to both sides of the reference line while extending downward; and on a lower part of the uneven surface which is located below the central axis, the cooling oil guide channels converge on the reference line from both sides of the reference line while extending downward.Type: GrantFiled: March 16, 2016Date of Patent: November 6, 2018Assignee: DENSO CORPORATIONInventors: Takafumi Matsumoto, Hirohito Matsui, Koji Asagara, Takeo Maekawa, Keiji Kondou
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Publication number: 20180313725Abstract: An abnormality diagnostic apparatus includes: a heat flux sensor that detects heat flux generated by a measurement target continuously from the start of operation of the measurement target or at predetermined time intervals; and a control device that determines whether there is an abnormality based on the result of the detection by the heat flux sensor. In the event of an abnormality in a facility, heat flux generated from the facility by at least one of current, voltage, sound, vibration, and friction changes. Therefore, the use of the heat flux sensor makes it possible to determine the presence or absence of an abnormality in the measurement target without using a plurality of kinds of sensors to measure current, voltage, sound, vibration, and friction.Type: ApplicationFiled: September 16, 2016Publication date: November 1, 2018Inventors: Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Yoshihiko SHIRAISHI, Yasuhiro TANAKA, Keita SAITOU, Hirohito MATSUI
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Publication number: 20180306611Abstract: A composite sensor includes a first sensor configured to detect a first physical quantity; a second sensor as a sensor of a different type from the first sensor, the second sensor being configured to detect a second physical quantity identical to or correlating with the first physical quantity; and an internal control unit configured to perform failure diagnosis for at least one of the first sensor or the second sensor by comparison between a detection result of the first sensor and a detection result of the second sensor.Type: ApplicationFiled: October 13, 2016Publication date: October 25, 2018Inventors: Keita SAITOU, Yoshitaro YAZAKI, Motoki SHIMIZU, Toshikazu HARADA, Atusi SAKAIDA, Toshihisa TANIGUCHI, Norio GOUKO, Hirohito MATSUI
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Publication number: 20180231420Abstract: In a radiant heat sensor, first and second thermoelectric members are alternately arrayed one by one in a direction along a first surface of a plate-shaped member so as to be separated from each other, and each of the first and second thermoelectric members configure a portion of the first surface. First conductor patterns extend the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure hot contact portions between the first and second thermoelectric members. Second conductor patterns extend along the first surface, disposed on the first surface so as to span a single first thermoelectric member and a single second thermoelectric member that are adjacent to each other, and configure cold contact portions between the first and second thermoelectric members.Type: ApplicationFiled: July 5, 2016Publication date: August 16, 2018Inventors: Keita SAITOU, Atusi SAKAIDA, Toshikazu HARADA, Hirohito MATSUI, Yukikatsu OZAKI
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Publication number: 20180038722Abstract: A thermal flow-rate sensor includes: a first temperature sensor that detects the temperature at a specified location of the outer-wall surface of a pipe; a heat-transfer element that is arranged on the outer-wall surface of the pipe in a state separated from the first temperature sensor, and that exchanges heat with a measurement medium by heating or cooling the outer-wall surface of the pipe; a second temperature sensor that detects the temperature of a portion of the outer-wall surface of the pipe that is heated or cooled by the heat-transfer element; and a control unit that performs specified processing.Type: ApplicationFiled: February 8, 2016Publication date: February 8, 2018Inventors: Yukikatsu OZAKI, Hirohito MATSUI, Toshikazu HARADA
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Patent number: 9583820Abstract: A vehicle-mounted antenna device includes a base, a board, a circuit section, and a housing. The base is mountable on a roof of a vehicle. The board has an antenna element section and is stood on the base. The circuit section is implemented on the board and serves as at least part of a wireless communication circuit electrically connected to the antenna element section. The housing is made of a resin material and forms a projection of an outer shape of the vehicle. The board and the circuit section are located in space formed by the base and the housing. A heat transfer path having a thermal conductivity higher than that of air is formed between the circuit section and the housing without passing the base.Type: GrantFiled: June 20, 2013Date of Patent: February 28, 2017Assignee: DENSO CORPORATIONInventors: Yuji Sugimoto, Hirohito Matsui, Tadao Suzuki, Ryohei Kataoka
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Patent number: 9523541Abstract: A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins (71) arranged in a zigzag form in a coolant passage (80). Each of the pin fins (71) has a circular portion (72) having a circular cross-section, and irregularly shaped portions (73) provided contiguously on the upstream and downstream sides of the circular portion (72) as viewed in a direction of flow of the coolant. The irregularly shaped portions (73) have an outer peripheral surface (75) that is formed along a circumference (130) having a center at a center point (101) of the circular portion (72) of a pin fin (71, 71B) that is located adjacent to the pin fin (71, 71A) having the irregularly shaped portions (73), in an oblique direction relative to the direction of flow of the coolant.Type: GrantFiled: April 12, 2012Date of Patent: December 20, 2016Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NIPPON SOKEN, INC.Inventors: Masanori Kawaura, Hirohito Matsui, Tadafumi Yoshida
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Publication number: 20160276904Abstract: In a multi-gap rotating electric machine, a side stator coil is received in a side space formed in a housing to connect radially inner and radially outer stator coils across a rotor. A cooling oil flow adjustment member is provided to adjust flow of cooling oil in the side space. The adjustment member has cooling oil guide channels formed on an uneven surface thereof facing the side stator coil. When viewed along a central axis of a rotating shaft: on an upper apart of the uneven surface which is located above the central axis, the cooling oil guide channels spread from a reference line to both sides of the reference line while extending downward; and on a lower part of the uneven surface which is located below the central axis, the cooling oil guide channels converge on the reference line from both sides of the reference line while extending downward.Type: ApplicationFiled: March 16, 2016Publication date: September 22, 2016Applicant: DENSO CORPORATIONInventors: Takafumi MATSUMOTO, Hirohito MATSUI, Koji ASAGARA, Takeo MAEKAWA, Keiji KONDOU
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Patent number: 9419499Abstract: A rotating electric machine includes a rotor, a stator, a cooling device and a pair of cooling liquid collection tanks. The stator includes an annular stator core and a stator coil. The stator core is disposed radially outside the rotor so as to surround the rotor. The stator coil is mounted on the stator core so that a pair of coil ends of the stator coil protrude axially outward respectively from opposite axial end faces of the stator core. The cooling device is configured to supply cooling liquid to vertically upper parts of the coil ends of the stator coil. Each of the cooling liquid collection tanks is arranged to surround a vertically lower part of a corresponding one of the coil ends so as to collect and temporarily reserve therein the cooling liquid moved from the upper part to the lower part of the corresponding coil end.Type: GrantFiled: May 22, 2014Date of Patent: August 16, 2016Assignee: DENSO CORPORATIONInventors: Hirohito Matsui, Koji Asagara, Atsuo Ishizuka
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Publication number: 20150229020Abstract: A vehicle-mounted antenna device includes a base, a board, a circuit section, and a housing. The base is mountable on a roof of a vehicle. The board has an antenna element section and is stood on the base. The circuit section is implemented on the board and serves as at least part of a wireless communication circuit electrically connected to the antenna element section. The housing is made of a resin material and forms a projection of an outer shape of the vehicle. The board and the circuit section are located in space formed by the base and the housing. A heat transfer path having a thermal conductivity higher than that of air is formed between the circuit section and the housing without passing the base.Type: ApplicationFiled: June 20, 2013Publication date: August 13, 2015Applicant: DENSO CORPORATIONInventors: Yuji Sugimoto, Hirohito Matsui, Tadao Suzuki, Ryohei Kataoka
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Publication number: 20140346905Abstract: A rotating electric machine includes a rotor, a stator, a cooling device and a pair of cooling liquid collection tanks. The stator includes an annular stator core and a stator coil. The stator core is disposed radially outside the rotor so as to surround the rotor. The stator coil is mounted on the stator core so that a pair of coil ends of the stator coil protrude axially outward respectively from opposite axial end faces of the stator core. The cooling device is configured to supply cooling liquid to vertically upper parts of the coil ends of the stator coil. Each of the cooling liquid collection tanks is arranged to surround a vertically lower part of a corresponding one of the coil ends so as to collect and temporarily reserve therein the cooling liquid moved from the upper part to the lower part of the corresponding coil end.Type: ApplicationFiled: May 22, 2014Publication date: November 27, 2014Applicant: DENSO CORPORATIONInventors: Hirohito MATSUI, Koji ASAGARA, Atsuo ISHIZUKA
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Publication number: 20140138063Abstract: A cooling fin structure used in a cooler for an electric device includes a plurality of pin fins (71) arranged in a zigzag form in a coolant passage (80). Each of the pin fins (71) has a circular portion (72) having a circular cross-section, and irregularly shaped portions (73) provided contiguously on the upstream and downstream sides of the circular portion (72) as viewed in a direction of flow of the coolant. The irregularly shaped portions (73) have an outer peripheral surface (75) that is formed along a circumference (130) having a center at a center point (101) of the circular portion (72) of a pin fin (71, 71B) that is located adjacent to the pin fin (71, 71A) having the irregularly shaped portions (73), in an oblique direction relative to the direction of flow of the coolant.Type: ApplicationFiled: April 12, 2012Publication date: May 22, 2014Applicants: NIPPON SOKEN, INC, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Masanori Kawaura, Hirohito Matsui, Tadafumi Yoshida
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Patent number: 8629586Abstract: An electric rotating machine includes a rotor, a stator in which a coil is so wound as to have an coil end, and a coolant supply pipe. The coolant supply pipe lies with a length thereof extending substantially parallel to an axis of rotation of the rotor and is disposed above the stator in a direction of gravitational force. The coolant supply pipe has a first and a second coolant outlet through which coolant is to be emitted to the coil end. The first and the second coolant outlets are so oriented as to direct streams of the coolant to a first area and a second area of the coil end which are different in location from each other. This enables the coolant to be emitted to almost the whole of the coil end even when the electric rotating machine is titled in a direction in which the rotor turns.Type: GrantFiled: December 22, 2010Date of Patent: January 14, 2014Assignees: Nippon Soken, Inc., Denso Corporation, Toyota Jidosha Kabushiki KaishaInventors: Akitoshi Minemura, Hirohito Matsui, Naoki Hakamada, Kazuya Onuki, Shinji Kouda, Takashi Matsumoto
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Patent number: 8552603Abstract: An electric rotating machine is provided which includes a stator in which a coil is so wound as to have an coil end and a coolant channel. The coolant channel has defined therein a flow path through which coolant flows and a flow separator disposed in the flow path and a first and a second coolant outlet. The flow separator works to separate a flow of the coolant into at least a first and a second coolant streams. The first coolant outlet communicates with the first coolant stream, while the second coolant outlet communicates with the second coolant stream. The first and second coolant outlets drain the coolant to different portions of the coil end, thereby cooling almost the whole of the coil end even when the electric rotating machine is tilted undesirably.Type: GrantFiled: December 22, 2010Date of Patent: October 8, 2013Assignees: Nippon Soken, Inc., Denso Corporation, Toyota Jidosha Kabushiki KaishaInventors: Akitoshi Minemura, Hirohito Matsui, Naoki Hakamada, Kazuya Onuki, Shinji Kouda, Takashi Matsumoto
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Patent number: 8331092Abstract: A semiconductor element cooling apparatus includes: a first member whose first surface on which a semiconductor element is mounted, and whose second surface has fins that define coolant flow paths, and that extend in a first direction, and that stand from the second surface to a predetermined height, and that are spaced from each other by predetermined intervals; and a second member that defines the coolant flow paths that extend in the first direction. The fins have grooves which extend in a second direction that intersects the first direction, and which have a depth that extends from the distal end side of the fins toward the second surface. The depth of the grooves is smaller than the height of the fins. A protrusion-forming member is disposed in the grooves, and extends across adjacent fins, and forms protrusions in the coolant flow paths defined by the adjacent fins.Type: GrantFiled: November 10, 2010Date of Patent: December 11, 2012Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, IncInventors: Masanori Kawaura, Hirohito Matsui, Tadafumi Yoshida
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Patent number: 8247934Abstract: The electric rotating machine includes a rotor relatable around a rotating shaft disposed horizontally, a stator core formed with slots, and a stator coil constituted of in-slot portions each of which is accommodated in a corresponding one of the slots, and turn portions each of which connects corresponding adjacent two of the in-slot portions at a position outside the stator core. The turn portions form a coil end projecting axially outward from an end surface of the stator core at each of both axial end sides of the stator core. The coil end is formed in a cylindrical shape including an axial end surface of a flat shape, and inner and outer peripheral surfaces of a circular shape. The electric rotating machine further includes a coolant supply section to supply coolant to an upper part of the outer peripheral surface of the coil end.Type: GrantFiled: April 21, 2010Date of Patent: August 21, 2012Assignees: Nippon Soken, Inc., Denso Corporation, Toyota Jidosha Kabushiki KaishaInventors: Hirohito Matsui, Sadahisa Onimaru, Shinji Kouda, Ryosake Utaka, Munehiro Kamiya, Hiroshi Kaneiwa