Patents by Inventor Kosuke Yamaguchi

Kosuke Yamaguchi 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).

  • Publication number: 20200303237
    Abstract: A method for manufacturing a semiconductor device according to the present invention includes the steps of (a) preparing a lead frame including a power chip die pad to which two terminals are connected, a control element die pad to which one terminal is connected, and tie bar portions connecting between a plurality of terminals including the two terminals, (b) placing a power chip and a free wheel diode on the power chip die pad and placing ICs on the control element die pad, (c) encapsulating in a mold resin to allow the tie bar portions to be exposed outside and a plurality of terminals including the two terminals and the one terminal to protrude outward, and (d) removing the tie bar portions other than the tie bar portions connecting the two terminals.
    Type: Application
    Filed: December 16, 2019
    Publication date: September 24, 2020
    Applicant: Mitsubishi Electric Corporation
    Inventors: Shuhei YOKOYAMA, Seiya SUGIMACHI, Maki HASEGAWA, Kosuke YAMAGUCHI, Shogo SHIBATA
  • Publication number: 20200166486
    Abstract: A liquid delivery device includes a liquid delivery pump that sucks a mobile phase, which is liquid, from a mobile phase container containing the mobile phase through a suction pipe whose end is immersed in the mobile phase in the mobile phase container, and feeds the mobile phase, and at least one dissolved substance removal filter that is provided at a position upstream of the liquid delivery pump on a path through which the mobile phase flows and is filled with a filler having the property of adsorbing a dissolved substance in the mobile phase.
    Type: Application
    Filed: July 4, 2017
    Publication date: May 28, 2020
    Inventors: Tadayuki YAMAGUCHI, Naoki ASAKAWA, Yuki SATO, Kosuke FUKUZAWA, Motoaki MURAKOSHI
  • Patent number: 10607874
    Abstract: According to one embodiment, an electrostatic chuck includes a ceramic dielectric substrate, a base plate, and a heater plate. The ceramic dielectric substrate has a surface where a processing object is placed. The base plate supports the ceramic dielectric substrate. The heater plate is provided between the ceramic dielectric substrate and the base plate. The heater plate includes a first support plate including a metal, a second support plate including a metal, a heater element, a first resin layer, and a second resin layer. The heater element is provided between the first support plate and the second support plate. The heater element emits heat due to a current flowing. The first resin layer is provided between the first support plate and the heater element. The second resin layer is provided between the second support plate and the heater element.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: March 31, 2020
    Assignee: Toto Ltd.
    Inventors: Kengo Maehata, Shumpei Kondo, Hitoshi Sasaki, Kosuke Yamaguchi, Yuichi Yoshii
  • Patent number: 10556593
    Abstract: A series hybrid vehicle is equipped with an engine, a first motor generator, and a second motor generator. The vehicle has a reduction gear that is a first power transmission mechanism for engaging the engine with the first motor generator, a reduction gear that is a second power transmission mechanism for engaging the first motor generator with a vehicle drive shaft, and a clutch that is capable of engaging the first motor generator with one of the two reduction gears in a switching manner. The vehicle further has a transmission that switches between transmission gear ratios and engages the second motor generator with the vehicle drive shaft.
    Type: Grant
    Filed: December 4, 2018
    Date of Patent: February 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki Ito, Kosuke Aiki, Kisaburo Hayakawa, Hiroyuki Yamaguchi, Hideto Inagaki, Masaki Okamura
  • Patent number: 10497600
    Abstract: According to the embodiment, the first invention relates to an electrostatic chuck. The electrostatic chuck includes a ceramic dielectric substrate having a first major surface placing a suction object and a second major surface on an opposite side to the first major surface, a base plate supporting the ceramic dielectric substrate and including a gas introduction path, and a first porous part provided at a position between the base plate and the first major surface and being opposite to the gas introduction path. The first porous part includes sparse portions including pores and a dense portion having a density higher than a density of the sparse portions. Each of the sparse portions extends from the base plate toward the ceramic dielectric substrate. The dense portion is positioned between the sparse portions. The sparse portions include a wall portion provided between the pores and the pores.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: December 3, 2019
    Assignee: Toto Ltd.
    Inventors: Kosuke Yamaguchi, Jun Shiraishi, Ikuo Itakura, Yutaka Momiyama, Shuichiro Saigan
  • Publication number: 20190287839
    Abstract: According to the embodiment, the electrostatic chuck includes a ceramic dielectric substrate having a first major surface and a second major surface on an opposite side to the first major surface, a base plate supporting the ceramic dielectric substrate and including a gas introduction path, and a first porous part provided at a position between the base plate and the first major surface and being opposite to the gas introduction path. The ceramic dielectric substrate includes a first hole part positioned between the first major surface and the first porous part. At least one of the ceramic dielectric substrate or the first porous part includes a second hole part positioned between the first hole part and the first porous part, and a dimension of the second hole part is smaller than a dimension of the first porous part and larger than a dimension of the first hole part.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Inventors: Kosuke YAMAGUCHI, Jun SHIRAISHI, Ikuo ITAKURA, Yutaka MOMIYAMA, Shuichiro SAIGAN
  • Publication number: 20190287838
    Abstract: According to the embodiment, the first invention relates to an electrostatic chuck. The electrostatic chuck includes a ceramic dielectric substrate having a first major surface placing a suction object and a second major surface on an opposite side to the first major surface, a base plate supporting the ceramic dielectric substrate and including a gas introduction path, and a first porous part provided at a position between the base plate and the first major surface and being opposite to the gas introduction path. The first porous part includes sparse portions including pores and a dense portion having a density higher than a density of the sparse portions. Each of the sparse portions extends from the base plate toward the ceramic dielectric substrate. The dense portion is positioned between the sparse portions. The sparse portions include a wall portion provided between the pores and the pores.
    Type: Application
    Filed: March 13, 2019
    Publication date: September 19, 2019
    Inventors: Kosuke YAMAGUCHI, Jun SHIRAISHI, Ikuo ITAKURA, Yutaka MOMIYAMA, Shuichiro SAIGAN
  • Publication number: 20190287840
    Abstract: According to the embodiment, an electrostatic chuck includes a ceramic dielectric substrate having a first major surface placing a suction object, a second major surface on an opposite side to the first major surface, a base plate supporting the ceramic dielectric substrate and including a gas introduction path, and a first porous part provided at a position between the base plate and the first major surface of the ceramic dielectric substrate and being opposite to the gas introduction path. The first porous part includes a first region positioned on the ceramic dielectric substrate side. The ceramic dielectric substrate includes a first substrate region positioned on the first region side. The first region and the first substrate region are provided in contact with each other, and an average particle diameter in the first region is different from an average particle diameter in the first substrate region.
    Type: Application
    Filed: March 14, 2019
    Publication date: September 19, 2019
    Inventors: Takara KATAYAMA, Kosuke YAMAGUCHI, Ikuo ITAKURA, Yutaka MOMIYAMA, Jun SHIRAISHI, Shuichiro SAIGAN
  • Patent number: 10415496
    Abstract: An engine-driven working machine includes a controller, which varies a control value of a solenoid valve so as to decrease or increase an opening degree of the solenoid valve when a rotating speed of an engine is within a predetermined high rotating speed range and the rotating speed of the engine is lower or higher than a predetermined rotating speed, respectively. When the control value of the solenoid valve is varied so as to decrease the opening degree of the solenoid valve and corresponds to a predetermined opening degree larger than a fully-closed state, the control value is set to a limitation value.
    Type: Grant
    Filed: April 20, 2016
    Date of Patent: September 17, 2019
    Assignees: YAMABIKO CORPORATION, IIDA DENKI KOGYO CO., LTD.
    Inventors: Shiro Yamaguchi, Takamasa Otsuji, Kosuke Matsumoto, Hiroyuki Miyaki, Akira Yamazaki
  • Patent number: 10373854
    Abstract: According to one embodiment, an electrostatic chuck includes a ceramic dielectric substrate, an electrode layer, a base plate, and a heater plate. The ceramic dielectric substrate has a first major surface where a processing object is placed. The electrode layer is provided in the ceramic dielectric substrate. The base plate supports the ceramic dielectric substrate. The heater plate is provided between the base plate and the first major surface. The heater plate includes a first heater element and a second heater element. The first heater element emits heat due to a current flowing. The second heater element emits heat due to a current flowing. When viewed along a direction perpendicular to the first major surface, bends of the first heater element is more than bends of the second heater element, and the first heater element includes a portion positioned at a gap of the second heater element.
    Type: Grant
    Filed: March 27, 2018
    Date of Patent: August 6, 2019
    Assignee: Toto Ltd.
    Inventors: Jumpei Uefuji, Hitoshi Sasaki, Kosuke Yamaguchi, Kengo Maehata, Yuichi Yoshii, Tetsuro Itoyama
  • Publication number: 20190217853
    Abstract: A hybrid vehicle includes a first gear mechanism which transmits the power of the internal combustion engine to the motor generator side, while accelerating the power between the internal combustion engine and the motor generator; a second gear mechanism which transmits the power of the motor generator side to a vehicle drive shaft, while decelerating the power between the motor generator and the vehicle drive shaft; a third gear mechanism which transmits the power of the drive motor side to the vehicle drive shaft, while decelerating the power between the drive motor and the vehicle drive shaft; a clutch mechanism which switches connection and disconnection between the drive shaft of the motor generator and the first gear mechanism or the second gear mechanism; and a control device which controls the clutch mechanism. The motor generator is not connected to both the vehicle drive shaft and the internal combustion engine at the same time at the time of normal traveling.
    Type: Application
    Filed: January 17, 2019
    Publication date: July 18, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kosuke AIKI, Kisaburo HAYAKAWA, Yoshiaki ITO, Hiroyuki YAMAGUCHI, Hideto INAGAKI, Masaki OKAMURA
  • Patent number: 10348179
    Abstract: An inverter-control element operates with a power-supply potential supplied to an inverter-control-system power-supply terminal to output a signal for controlling an inverter switching element. A brake control element operates with a power-supply potential supplied to a brake-control-system power-supply terminal to output a signal for controlling a brake switching element. A first metal component includes a plurality of protrusions protruding from a sealing resin, is supported by the sealing resin with a portion embedded in the sealing resin, and is electrically connected to each of the inverter-control-system power-supply terminal and the brake-control-system power-supply terminal.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: July 9, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kosuke Yamaguchi, Tomofumi Tanaka
  • Publication number: 20190168761
    Abstract: A series hybrid vehicle is equipped with an engine, a first motor generator, and a second motor generator. The vehicle has a reduction gear that is a first power transmission mechanism for engaging the engine with the first motor generator, a reduction gear that is a second power transmission mechanism for engaging the first motor generator with a vehicle drive shaft, and a clutch that is capable of engaging the first motor generator with one of the two reduction gears in a switching manner. The vehicle further has a transmission that switches between transmission gear ratios and engages the second motor generator with the vehicle drive shaft.
    Type: Application
    Filed: December 4, 2018
    Publication date: June 6, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshiaki ITO, Kosuke AIKI, Kisaburo HAYAKAWA, Hiroyuki YAMAGUCHI, Hideto INAGAKI, Masaki OKAMURA
  • Publication number: 20190148206
    Abstract: According to an aspect of the invention, an electrostatic chuck includes: a ceramic dielectric substrate having a first major surface, and a second major surface on a side opposite to the first major surface; a base plate supporting the ceramic dielectric substrate and being provided at a position separated from the ceramic dielectric substrate; and a heater plate provided between the ceramic dielectric substrate and the base plate, the heater plate including a first support plate including a metal, a heater element emitting heat due to a current flowing, and a first resin layer provided between the first support plate and the heater element, the heater element having a first surface and a second surface, the first surface opposing the first resin layer, the second surface facing a side opposite to the first surface, a width of the first surface being different from a width of the second surface.
    Type: Application
    Filed: January 16, 2019
    Publication date: May 16, 2019
    Inventors: Kosuke YAMAGUCHI, Hitoshi SASAKI, Kengo MAEHATA, Shumpei KONDO, Yuichi YOSHII
  • Publication number: 20190148204
    Abstract: According to an aspect of the invention, an electrostatic chuck comprises: a ceramic dielectric substrate; a base plate; and a heater plate. The heater plate includes a first and a second support plates including a metal, a heater element provided between the first and the second support plates, a first resin layer provided between the first support plate and the heater element, and a second resin layer provided between the second support plate and the heater element. A surface of the first support plate on the second support plate side includes a first region and a second region, the first region overlapping the heater element when viewed along the stacking direction, the second region not overlapping the heater element when viewed along the stacking direction. In a cross section parallel to the stacking direction, the second region protrudes toward the second support plate side compared to the first region.
    Type: Application
    Filed: January 9, 2019
    Publication date: May 16, 2019
    Inventors: Kosuke YAMAGUCHI, Hitoshi SASAKI, Kengo MAEHATA, Shumpei KONDO, Yuichi YOSHII
  • Patent number: 10186978
    Abstract: Converter output terminals of a converter are located adjacent to each other on a first side and an external terminal for external connection of a composite module is located adjacent to the converter output terminal. AC input terminals of the converter are located on a second side. Each of the distances between the converter output terminals and between the converter output terminal and the external terminal is set to a first formation pitch. Each of the distances between the AC input terminals is set to a second formation pitch. The first formation pitch is set to be equal to the second formation pitch.
    Type: Grant
    Filed: April 20, 2015
    Date of Patent: January 22, 2019
    Assignee: Mitsubishi Electric Corporation
    Inventors: Kosuke Yamaguchi, Tomofumi Tanaka, Shinya Nakagawa, Toru Iwagami
  • Publication number: 20190019715
    Abstract: An electrostatic chuck includes a ceramic dielectric substrate, a base plate, and a heater plate. The heater plate is provided between the ceramic dielectric substrate and the base plate. The heater plate includes first and second support plates, first and second resin layers, and a heater element. Each of the first and second resin layers is provided between the first support plate and the second support plate. The heater element includes first and second electrically conductive portions. The first electrically conductive portion is provided between the first resin layer and the second resin layer. The second electrically conductive portion is separated from the first electrically conductive portion in an in-plane direction. The first resin layer contacts the second resin layer between the first electrically conductive portion and the second electrically conductive portion.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 17, 2019
    Inventors: Jumpei UEFUJI, Hitoshi SASAKI, Kosuke YAMAGUCHI, Kengo MAEHATA, Yuichi YOSHII
  • Publication number: 20190013231
    Abstract: According to one embodiment, an electrostatic chuck includes a ceramic dielectric substrate having a first major surface placing an object to be processed and a second major surface on an opposite side of the first major surface, and a base plate provided on a side of the second major surface and supporting the ceramic dielectric substrate. The base plate includes a first communicating passage passing a medium which adjusts a temperature of the object to be processed. The first communicating passage has an upper surface, a side surface, and a lower surface. A ratio of variation of a maximum height Sz in the upper surface to a height of the first communicating passage is not more than 1%.
    Type: Application
    Filed: September 14, 2018
    Publication date: January 10, 2019
    Inventors: Kosuke YAMAGUCHI, Yuichi YOSHII, Hitoshi SASAKI, Kengo MAEHATA
  • Publication number: 20180286732
    Abstract: According to one embodiment, an electrostatic chuck includes a ceramic dielectric substrate, an electrode layer, a base plate, and a heater plate. The ceramic dielectric substrate has a first major surface where a processing object is placed. The electrode layer is provided in the ceramic dielectric substrate. The base plate supports the ceramic dielectric substrate. The heater plate is provided between the base plate and the first major surface. The heater plate includes a first heater element and a second heater element. The first heater element emits heat due to a current flowing. The second heater element emits heat due to a current flowing. When viewed along a direction perpendicular to the first major surface, bends of the first heater element is more than bends of the second heater element, and the first heater element includes a portion positioned at a gap of the second heater element.
    Type: Application
    Filed: March 27, 2018
    Publication date: October 4, 2018
    Inventors: Jumpei UEFUJI, Hitoshi SASAKI, Kosuke YAMAGUCHI, Kengo MAEHATA, Yuichi YOSHII, Tetsuro ITOYAMA
  • Publication number: 20180131262
    Abstract: An inverter-control element operates with a power-supply potential supplied to an inverter-control-system power-supply terminal to output a signal for controlling an inverter switching element. A brake control element operates with a power-supply potential supplied to a brake-control-system power-supply terminal to output a signal for controlling a brake switching element. A first metal component includes a plurality of protrusions protruding from a sealing resin, is supported by the sealing resin with a portion embedded in the sealing resin, and is electrically connected to each of the inverter-control-system power-supply terminal and the brake-control-system power-supply terminal.
    Type: Application
    Filed: August 20, 2015
    Publication date: May 10, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Kosuke YAMAGUCHI, Tomofumi TANAKA