Patents by Inventor Tatsuya Kitamura
Tatsuya Kitamura 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).
-
Patent number: 11976583Abstract: The present invention relates to a reservoir tank for coolant that stores the coolant for cooling an internal combustion engine. The reservoir tank includes: a tank chamber that stores the coolant; an opening, which is disposed in an upper part of the tank chamber, through which the coolant flows in and flows out, and in a circumferential wall of which a breathing hole is formed; and a first communication passage, a second communication passage, and a third communication passage that respectively communicate with the opening and the tank chamber.Type: GrantFiled: August 29, 2023Date of Patent: May 7, 2024Assignee: HONDA MOTOR CO., LTD.Inventors: Miyo Kitamura, Shinji Shimoyama, Keijiro Koide, Masahiro Kato, Tatsuya Kurimoto, Tatsuki Tanaka, Koji Sato, Takumi Tokinoya
-
Publication number: 20240087433Abstract: A lighting system includes a plurality of lighting devices and a control device. The plurality of lighting devices are installed in a facility. The control device controls the plurality of lighting devices. The control device controls lighting light projected by at least one lighting device, belonging to the plurality of lighting devices, into colored lighting light, of which a color is different from a color white, to give, upon acquiring information about an event in question, a sign depending on the event in question.Type: ApplicationFiled: January 22, 2022Publication date: March 14, 2024Inventors: Takanori AKETA, Kenichiro TANAKA, Jin YOSHIZAWA, Shingo NAGATOMO, Kazuki KITAMURA, Tatsuya TAKAHASHI, Tatsuo KOGA, Tomonori YAMADA, Kazuto URA
-
Publication number: 20240077015Abstract: The present invention relates to a reservoir tank for coolant that stores the coolant for cooling an internal combustion engine. The reservoir tank includes: a tank chamber that stores the coolant; an opening, which is disposed in an upper part of the tank chamber, through which the coolant flows in and flows out, and in a circumferential wall of which a breathing hole is formed; and a first communication passage, a second communication passage, and a third communication passage that respectively communicate with the opening and the tank chamber.Type: ApplicationFiled: August 29, 2023Publication date: March 7, 2024Inventors: Miyo KITAMURA, Shinji SHIMOYAMA, Keijiro KOIDE, Masahiro KATO, Tatsuya KURIMOTO, Tatsuki TANAKA, Koji SATO, Takumi TOKINOYA
-
Publication number: 20230238860Abstract: The rotation angle detection device includes: a magnet; a magnetic detection element disposed on the one side in the axial direction relative to the magnet with a gap interposed between the magnetic detection element and the magnet; and a shield. The shield is disposed at a location in the axial direction between a location in the axial direction of a wire member allowing current to flow therethrough and a location in the axial direction of the magnetic detection element, is disposed radially outward of the magnet as seen in the axial direction, and has a portion that overlaps with the wire member as seen in the axial direction. The wire member is disposed at a location in the axial direction that is closer to the magnet than the magnetic detection element is, and is disposed radially outward of the magnet as seen in the axial direction.Type: ApplicationFiled: July 22, 2022Publication date: July 27, 2023Applicant: Mitsubishi Electric CorporationInventors: Tatsuya KITAMURA, Yosuke UNO
-
Publication number: 20230109290Abstract: A semiconductor composite device includes active elements and passive elements constituting a voltage regulator and disposed in association with a plurality of channels, a load to be supplied with a direct-current voltage regulated by the voltage regulator, and a wiring board electrically connected to the active elements, the passive elements, and the load. A plurality of capacitors disposed in the channels include an integrally formed capacitor array including a plurality of capacitor portions disposed in a plane. The capacitor array includes a plurality of through hole conductors extending through the capacitor array in a direction perpendicular to a mounting surface of the wiring board. At least a part of the capacitor array is positioned to overlap the load when viewed from the mounting surface of the wiring board.Type: ApplicationFiled: December 12, 2022Publication date: April 6, 2023Inventors: Tatsuya KITAMURA, Koshi HIMEDA, Takeshi FURUKAWA
-
Publication number: 20230071172Abstract: A noise filter includes a plurality of stages of LC filters composed of a plurality of inductors and a plurality of capacitors. Each inductor has a bus bar, and a core member made from a magnetic body and having a tubular shape surrounding the bus bar. A power conversion device includes a power conversion main circuit, and the noise filter. The plurality of inductors are composed of: a specific bus bar, which is a first bus bar having a plate shape on a positive side and connecting an external power supply and the power conversion main circuit, or a second bus bar having a plate shape on a negative side and connecting the external power supply and the power conversion main circuit; and a plurality of core members surrounding the specific bus bar. The plurality of capacitors are provided between the first bus bar and the second bus bar.Type: ApplicationFiled: June 8, 2020Publication date: March 9, 2023Applicant: Mitsubishi Electric CorporationInventors: Hiroki FUJIWARA, Tatsuya KITAMURA
-
Patent number: 11552020Abstract: A semiconductor composite device is provided that includes a voltage regulator, a package board, and a load, and converts an input DC voltage into a different DC voltage to supply the converted DC voltage to the load. The VR includes a semiconductor active element. The package board includes a C layer in which a capacitor is formed, and an L layer in which an inductor is formed. A plurality of through holes penetrate the C layer and the L layer in a direction perpendicular to the mounting face in the package board. The capacitor is connected to the load through the through hole. The inductor is connected to the load through the through hole and to the VR through the through hole.Type: GrantFiled: August 10, 2021Date of Patent: January 10, 2023Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Koshi Himeda, Tatsuya Kitamura, Chiharu Sakaki, Shinya Kiyono, Sho Fujita, Atsushi Yamamoto, Takeshi Furukawa, Kenji Nishiyama, Tatsuya Funaki, Kinya Aoki
-
Publication number: 20220278035Abstract: A module is used in a semiconductor composite device that supplies a direct-current voltage adjusted by a voltage regulator including a semiconductor active element to a load. The module includes a capacitor layer including at least one capacitor portion forming a capacitor, a connection terminal used for electrical connection with at least one of the voltage regulator and the load, and a through-hole conductor formed to penetrate the capacitor portion in a thickness direction of the capacitor layer. The capacitor is electrically connected to at least one of the load and the voltage regulator with the through-hole conductor interposed between the load and the voltage regulator.Type: ApplicationFiled: May 20, 2022Publication date: September 1, 2022Inventors: Shinji OTANI, Akitomo TAKAHASHI, Takaaki SAKAI, Takeshi FURUKAWA, Tatsuya KITAMURA
-
Publication number: 20210375841Abstract: A semiconductor composite device is provided that includes a voltage regulator, a package board, and a load, and converts an input DC voltage into a different DC voltage to supply the converted DC voltage to the load. The VR includes a semiconductor active element. The package board includes a C layer in which a capacitor is formed, and an L layer in which an inductor is formed. A plurality of through holes penetrate the C layer and the L layer in a direction perpendicular to the mounting face in the package board. The capacitor is connected to the load through the through hole. The inductor is connected to the load through the through hole and to the VR through the through hole.Type: ApplicationFiled: August 10, 2021Publication date: December 2, 2021Inventors: Koshi Himeda, Tatsuya Kitamura, Chiharu Sakaki, Shinya Kiyono, Sho Fujita, Atsushi Yamamoto, Takeshi Furukawa, Kenji Nishiyama, Tatsuya Funaki, Kinya Aoki
-
Patent number: 11121123Abstract: A semiconductor composite device is provided that includes a voltage regulator, a package board, and a load, and converts an input DC voltage into a different DC voltage to supply the converted DC voltage to the load. The VR includes a semiconductor active element. The package board includes a C layer in which a capacitor is formed, and an L layer in which an inductor is formed. A plurality of through holes penetrate the C layer and the L layer in a direction perpendicular to the mounting face in the package board. The capacitor is connected to the load through the through hole. The inductor is connected to the load through the through hole and to the VR through the through hole.Type: GrantFiled: June 22, 2020Date of Patent: September 14, 2021Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Koshi Himeda, Tatsuya Kitamura, Chiharu Sakaki, Shinya Kiyono, Sho Fujita, Atsushi Yamamoto, Takeshi Furukawa, Kenji Nishiyama, Tatsuya Funaki, Kinya Aoki
-
Publication number: 20200321323Abstract: A semiconductor composite device is provided that includes a voltage regulator, a package board, and a load, and converts an input DC voltage into a different DC voltage to supply the converted DC voltage to the load. The VR includes a semiconductor active element. The package board includes a C layer in which a capacitor is formed, and an L layer in which an inductor is formed. A plurality of through holes penetrate the C layer and the L layer in a direction perpendicular to the mounting face in the package board. The capacitor is connected to the load through the through hole. The inductor is connected to the load through the through hole and to the VR through the through hole.Type: ApplicationFiled: June 22, 2020Publication date: October 8, 2020Inventors: Koshi Himeda, Tatsuya Kitamura, Chiharu Sakaki, Shinya Kiyono, Sho Fujita, Atsushi Yamamoto, Takeshi Furukawa, Kenji Nishiyama, Tatsuya Funaki, Kinya Aoki
-
Patent number: 10794695Abstract: A range sensor includes a light source, a light receiver, a controller, and a range information generator. The light source repeatedly emits illumination light onto a target. The light receiver receives light from the start of a time period during which the illumination light is emitted. The controller controls the light source and the light receiver so that each of the amounts of light received by the light receiver is cumulated in synchronization with emission of the illumination light. The range information generator generates range information indicating the range to the target based on the cumulative amounts of received light. The controller changes the cumulative number that is the number of cumulating operations in which the light receiver cumulates each of the amounts of received light, in accordance with the magnitudes of the cumulative amounts of received light.Type: GrantFiled: October 16, 2017Date of Patent: October 6, 2020Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Tatsuya Kitamura, Hironari Yamamoto
-
Patent number: 10693392Abstract: A power conversion device includes a first switching unit connected between a DC power supply and an inverter circuit, a resonant circuit connected to the input of the inverter circuit and formed by connecting a capacitor, a reactor, and a second switching unit, and a control unit, wherein, during a resonant operation period in which the first switching unit is controlled to be off and the second switching unit is controlled to be on, the control unit controls the inverter circuit to shift from a mode in which current flows back through one of upper and lower arms of the inverter circuit to a mode in which current flows back through the other arm, and provides a period in which the upper and lower arms for every phase of the inverter circuit are turned on simultaneously.Type: GrantFiled: November 21, 2016Date of Patent: June 23, 2020Assignee: Mitsubishi Electric CorporationInventors: Kohei Onda, Yoshihiro Takeshima, Tatsuya Kitamura, Hiroyasu Iwabuki, Hideyuki Sotome, Takaya Muto
-
Patent number: 10644633Abstract: Provided is a drive control device including: a DC voltage source; an inverter configured to switch a switching element, to thereby apply a drive voltage to a rotary electric machine to cause a drive current to flow through the rotary electric machine; and a control unit configured to: control an output voltage of the DC voltage source; and perform control of causing, based on a torque command value for the rotary electric machine, a drive current to flow through the switching element in a first control mode, in which a drive current having a value equal to or smaller than a first current limit value is caused to flow, and a second control mode, in which a drive current having a value larger than the first current limit value is caused to flow.Type: GrantFiled: September 12, 2017Date of Patent: May 5, 2020Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Taiga Komatsu, Tatsuya Kitamura
-
Publication number: 20200112268Abstract: A power conversion device includes a first switching unit connected between a DC power supply and an inverter circuit, a resonant circuit connected to the input of the inverter circuit and formed by connecting a capacitor, a reactor, and a second switching unit, and a control unit, wherein, during a resonant operation period in which the first switching unit is controlled to be off and the second switching unit is controlled to be on, the control unit controls the inverter circuit to shift from a mode in which current flows back through one of upper and lower arms of the inverter circuit to a mode in which current flows back through the other arm, and provides a period in which the upper and lower arms for every phase of the inverter circuit are turned on simultaneously.Type: ApplicationFiled: November 21, 2016Publication date: April 9, 2020Applicant: Mitsubishi Electric CorporationInventors: Kohei ONDA, Yoshihiro TAKESHIMA, Tatsuya KITAMURA, Hiroyasu IWABUKI, Hideyuki SOTOME, Takaya MUTO
-
Publication number: 20190386598Abstract: Provided is a drive control device including: a DC voltage source; an inverter configured to switch a switching element, to thereby apply a drive voltage to a rotary electric machine to cause a drive current to flow through the rotary electric machine; and a control unit configured to: control an output voltage of the DC voltage source; and perform control of causing, based on a torque command value for the rotary electric machine, a drive current to flow through the switching element in a first control mode, in which a drive current having a value equal to or smaller than a first current limit value is caused to flow, and a second control mode, in which a drive current having a value larger than the first current limit value is caused to flow.Type: ApplicationFiled: September 12, 2017Publication date: December 19, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Taiga KOMATSU, Tatsuya KITAMURA
-
Patent number: 10454385Abstract: A power conversion device that supplies power to a load using a module incorporating a semiconductor element is such that a sealing wall that holds a sealing resin is provided on a metal case that cools the module, a feedback current channel, which is one wiring member forming a current channel that passes into and out of the semiconductor element, is the metal case, and another wiring member is disposed in proximity to and parallel with the sealing wall of the metal case.Type: GrantFiled: February 17, 2017Date of Patent: October 22, 2019Assignee: Mitsubishi Electric CorporationInventors: Tatsuya Kitamura, Kohei Onda
-
Publication number: 20190131883Abstract: A power conversion device that supplies power to a load using a module incorporating a semiconductor element is such that a sealing wall that holds a sealing resin is provided on a metal case that cools the module, a feedback current channel, which is one wiring member forming a current channel that passes into and out of the semiconductor element, is the metal case, and another wiring member is disposed in proximity to and parallel with the sealing wall of the metal case.Type: ApplicationFiled: February 17, 2017Publication date: May 2, 2019Applicant: Mitsubishi Electric CorporationInventors: Tatsuya KITAMURA, Kohei ONDA
-
Patent number: 10038224Abstract: A plurality of required DC voltages are outputted. A power supply device includes: a first switch circuit corresponding to the plurality of battery devices, and that includes a switch for connecting a negative pole terminal, by which negative pole terminals of the battery devices are connected, and a first switch for connecting a positive pole terminal, by which positive pole terminals of the battery devices are connected, and a switch for bypassing, by which the battery devices are bypassed; and a second switch circuit corresponding to the plurality of battery devices, and that includes a second switch for connecting a positive pole terminal, by which positive pole terminals of the battery devices are connected, and a switch for connecting, by which the negative pole terminals of the battery devices are connected to a positive pole terminal of the other battery device.Type: GrantFiled: January 21, 2016Date of Patent: July 31, 2018Assignee: Mitsubishi Electric CorporationInventors: Yohei Tan, Tatsuya Kitamura, Takahiko Yamamuro
-
Publication number: 20180045513Abstract: A range sensor includes a light source, a light receiver, a controller, and a range information generator. The light source repeatedly emits illumination light onto a target. The light receiver receives light from the start of a time period during which the illumination light is emitted. The controller controls the light source and the light receiver so that each of the amounts of light received by the light receiver is cumulated in synchronization with emission of the illumination light. The range information generator generates range information indicating the range to the target based on the cumulative amounts of received light. The controller changes the cumulative number that is the number of cumulating operations in which the light receiver cumulates each of the amounts of received light, in accordance with the magnitudes of the cumulative amounts of received light.Type: ApplicationFiled: October 16, 2017Publication date: February 15, 2018Inventors: Tatsuya KITAMURA, Hironari YAMAMOTO