Patents by Inventor Yuji Sasaki

Yuji Sasaki 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: 20210115925
    Abstract: An example rotary machine includes a motor including a rotor and a stator, and a cooling jacket disposed around the stator. The cooling jacket includes an inner body part being cylindrical and in contact with the stator, an outer body part being cylindrical and surrounding the inner body part, and a groove through which a cooling medium passes, the groove circling helically around an outer circumference of the inner body part at least once. The groove has a pair of side surfaces opposed in a direction of an axis of rotation of the rotor, and a bottom surface connected to each of the pair of side surfaces. Each of the pair of side surfaces is formed having a draft angle inclined away from each other, the draft angle inclined relative to a release direction orthogonal to the axis of rotation.
    Type: Application
    Filed: December 24, 2020
    Publication date: April 22, 2021
    Inventors: Kuniaki IIZUKA, Yuji SASAKI, Tatsumi INOMATA, Ryosuke YUMOTO, Kai IIJIMA, Tatsuya FUKUI, Hikaru SUGIURA, Yoshihito KATSU
  • Patent number: 10982680
    Abstract: A turbocharger impeller includes: a cylindrical boss portion disposed around a rotary axis; a hub portion connected to the boss portion and extends in a radial direction of the rotary axis; and a blade portion protruding from the boss portion and the hub portion toward a tip end side in the direction of the rotary axis and the radial direction. At least a part of an outer peripheral part of the hub portion in the radial direction or a part of the blade portion is provided with a resin second section and the second section is bonded to an aluminum first section. The turbocharger impeller includes the aluminum first section and the resin second section.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: April 20, 2021
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Takashi Yoshida, Yuji Sasaki, Tatsumi Inomata, Takuya Ozasa, Tomohisa Okada, Ryosuke Yumoto, Kouta Kimachi
  • Publication number: 20210102551
    Abstract: This electric compressor includes a rotation shaft including a first end and a second end, a compressor impeller which is mounted on the first end of the rotation shaft and includes a back surface facing the second end, a motor disposed between the first end and the second end of the rotation shaft, a wall portion which separates an impeller space and a motor space from each other and includes a reference wall surface having a shape along the back surface of the compressor impeller, and a bypass hole which is formed in the wall portion to connect the impeller space to the motor space and includes a first opening which opens to the impeller space. In the wall portion, a recessed portion which is disposed around the first opening of the bypass hole and recessed from the reference wall surface is formed.
    Type: Application
    Filed: December 17, 2020
    Publication date: April 8, 2021
    Inventors: Kuniaki IIZUKA, Yuji SASAKI, Tatsumi INOMATA, Ryosuke YUMOTO, Kai IIJIMA, Tatsuya FUKUI, Hikaru SUGIURA, Yoshihito KATSU, Takashi YOSHIDA, Takashi MORI
  • Patent number: 10941788
    Abstract: An electric compressor includes a rotation shaft, a compressor impeller, a rotor portion, a stator portion, and a motor housing. The motor housing includes an inner housing which includes a first cylindrical portion surrounding and holding the stator portion and an outer housing which includes a second cylindrical portion surrounding and holding the first cylindrical portion of the inner housing. An outer peripheral surface of the stator portion is in contact with an inner peripheral surface of the first cylindrical portion of the inner housing. An outer peripheral surface of the first cylindrical portion is provided with a first groove portion disposed to turn around an axis of the rotation shaft by one turn or more and the first groove portion includes a spiral groove portion.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: March 9, 2021
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Takashi Yoshida, Yuji Sasaki, Tatsumi Inomata, Takuya Ozasa, Ryosuke Yumoto, Takashi Mori
  • Publication number: 20210054851
    Abstract: A turbocharger impeller includes: a cylindrical boss portion disposed around a rotary axis; a hub portion connected to the boss portion and extends in a radial direction of the rotary axis; and a blade portion protruding from the boss portion and the hub portion toward a tip end side in the direction of the rotary axis and the radial direction. At least a part of an outer peripheral part of the hub portion in the radial direction or a part of the blade portion is provided with a resin second section and the second section is bonded to an aluminum first section. The turbocharger impeller includes the aluminum first section and the resin second section.
    Type: Application
    Filed: July 27, 2017
    Publication date: February 25, 2021
    Applicant: IHI Corporation
    Inventors: Kuniaki IIZUKA, Takashi YOSHIDA, Yuji SASAKI, Tatsumi INOMATA, Takuya OZASA, Tomohisa OKADA, Ryosuke YUMOTO, Kouta KIMACHI
  • Patent number: 10865687
    Abstract: An exhaust gas energy recovery device includes a power generation device driven by a turbine configured to rotate by an exhaust gas, a switching element connected to the power generation device, a first terminal connected to the power generation device via the switching element and for being connected to a first power storage device, and a second terminal connected to the power generation device and for being connected to a second power storage device, in which a terminal voltage of the first power storage device is lower than a terminal voltage of the second power storage device, and the switching element switches a destination to be charged by the power generation device to either the first power storage device or the second power storage device on the basis of magnitude of a direct current voltage output from the power generation device.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: December 15, 2020
    Assignee: IHI Corporation
    Inventors: Yuji Sasaki, Takashi Yoshida, Tatsumi Inomata, Kuniaki Iizuka, Takuya Ozasa, Ryosuke Yumoto
  • Publication number: 20200390000
    Abstract: An inverter unit includes a circuit board that has a power device and a capacitor configuring an inverter circuit and provided on a front surface and an exposure region provided on a rear surface, a lower case that is provided with an exposure opening for exposing the exposure region and supports a surrounding area of the exposure region, and an upper case that is provided with a rib structure pressed against the front surface of the circuit board and pressurizing the circuit board toward the lower case and has the lower case attached thereto. The circuit board is sandwiched between the lower case and the upper case.
    Type: Application
    Filed: November 6, 2018
    Publication date: December 10, 2020
    Applicant: IHI Corporation
    Inventors: Yuji SASAKI, Hirofumi HORIUCHI, Jun TAKIZAWA, Eiji TAKAMURA, Teruyuki WADA
  • Publication number: 20200384453
    Abstract: A plugged honeycomb segment includes a honeycomb segment having a quadrangular prism shape which includes porous partition walls arranged to surround a plurality of cells and an outermost circumferential wall, and a plugging portion, wherein a porosity of the partition walls is 30 to 70%, in a cross section orthogonal to the cell extending direction, an inflow cell surrounded by the partition walls is a hexagon, and an outflow cell is a square, one outflow cell is surrounded by four inflow cells, the cell located at the outermost circumference includes a complete cell and an incomplete cell, and a thickness of the outermost circumferential wall in contact with the incomplete cell (T1), a thickness of the outermost circumferential wall in contact with the complete cell (T2), and a thickness of the partition walls (WT), satisfy 0.200 mm<T1<T2?(½×WT) and T2?0.700 mm.
    Type: Application
    Filed: August 10, 2020
    Publication date: December 10, 2020
    Applicant: NGK Insulators, Ltd.
    Inventor: Yuji SASAKI
  • Publication number: 20200306741
    Abstract: A honeycomb structure includes a pillar-shaped honeycomb structure body having a porous partition wall defining a plurality of cells serving as fluid through channel extending from an inflow end face to an outflow end face; and a circumferential wall surrounding the partition wall, wherein in a plane orthogonal to cell extending direction, the honeycomb structure body has a circumferential cell structure, a center cell structure having a cell structure different from the circumferential cell structure, and a boundary wall, the honeycomb structure body has intersection parts of the partition wall, including basic intersection parts and thick intersection parts having a thickness larger than that of the basic intersection parts, the thick intersection parts include at least one of: first thick intersection parts and second thick intersection parts, and in the circumferential cell structure, the intersection parts at least include the circumferential basic intersection parts.
    Type: Application
    Filed: March 12, 2020
    Publication date: October 1, 2020
    Applicant: NGK Insulators, Ltd.
    Inventors: Yuji SasakI, Akifumi Kawakami, Takashi Kinoshita, Mitsuhiro Ito
  • Publication number: 20200242529
    Abstract: A server includes a unit obtaining a position of a registered vehicle, a unit obtaining a vehicle dispatch position, a unit determining a candidate vehicle based on the vehicle dispatch position and the position of the registered vehicle, a unit transmitting information regarding an autonomous driving function of the candidate vehicle to a user device, a unit receiving information for identifying a dispatch vehicle, and a unit transmitting a vehicle dispatch position to the dispatch vehicle. The user device includes a unit receiving the information regarding the autonomous driving function of the candidate vehicle, a unit displaying the information regarding the autonomous driving function of the candidate vehicle, an unit accepting a user operation for selecting the dispatch vehicle, and a unit transmitting the information for identifying the dispatch vehicle to the server.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 30, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junya WATANABE, Yuji SASAKI, Seiji ARAKAWA, Naotoshi KADOTANI, Masafumi HAYAKAWA, Takashi HAYASHI
  • Patent number: 10724426
    Abstract: An electric turbocharger includes an electric motor which rotationally drives a rotating blade, a motor housing which accommodates the electric motor therein, a controller which is disposed outside the motor housing and controls the driving of the electric motor, and a power supply mechanism which supplies a current from the controller to the electric motor through a through-hole communicating the inside and the outside of the motor housing, in which the power supply mechanism includes a rod which is hermetically sealed while being inserted through the through-hole, a connector which is connected to at least one end of the rod, and a busbar which is connected to the connector, and in which the connector absorbs a relative positional displacement of the rod with respect to the connector.
    Type: Grant
    Filed: May 16, 2017
    Date of Patent: July 28, 2020
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Takashi Yoshida, Yuji Sasaki, Tatsumi Inomata, Takuya Ozasa, Tomohisa Okada, Ryosuke Yumoto, Kouta Kimachi
  • Patent number: 10662963
    Abstract: A rotary machine is provided with: a bearing that supports a rotary shaft of an impeller; a bearing support part that supports an outer circumference of the bearing; a key groove that is formed in the bearing and the bearing support part and extends along a rotary shaft line direction of the rotary shaft; and a key member that is inserted into the key groove. The bearing support part is provided with an outer regulating part that can contact one end part of the key member inside the key groove. An outer ring of the bearing is provided with an inner regulating part that can contact another end part of the key member inside the key groove. A distance between the outer regulating part and the inner regulating part is longer than a length of the key member in the rotary shaft line direction.
    Type: Grant
    Filed: August 25, 2017
    Date of Patent: May 26, 2020
    Assignee: IHI Corporation
    Inventors: Kuniaki Iizuka, Takashi Yoshida, Yuji Sasaki, Tatsumi Inomata, Takuya Ozasa, Ryosuke Yumoto, Takashi Mori
  • Patent number: 10632647
    Abstract: A honeycomb structure has a pillar-shaped honeycomb structure body having porous partition walls which defines cells which forms a passage of liquid extended from an inflow end face toward an outflow end face, a circumferential wall arranged to surround a circumference of the partition walls. The honeycomb structure body has an outermost circumference cell structure including a complete cell arranged at the outermost circumference of the honeycomb structure body, a center cell structure formed by the cells arranged at a center part at an inner side to the outermost circumference cell structure, and a boundary wall arranged at a boundary part between the outermost circumference cell structure and the center cell structure. The outermost circumference cell structure and the center cell structure are formed as different structures to each other, and a thickness of the boundary wall is set to be thicker than a thickness of the circumferential wall.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: April 28, 2020
    Assignee: NGK Insulators, Ltd.
    Inventors: Akifumi Kawakami, Yuji Sasaki, Mitsuhiro Ito, Yukiharu Morita
  • Patent number: 10634043
    Abstract: An electric device includes a partition wall configured to partition between a motor chamber having a relatively high pressure and an inverter chamber having a relatively low pressure; an inverter, which is provided in the inverter chamber, and is configured to supply power; a motor, which is provided in the motor chamber, and is configured to operate with supply of power from the inverter; and a bus-bar device, which is mounted to the partition wall by being inserted into a partition wall through hole formed in the partition wall, and is configured to connect the inverter and the motor to each other. The bus-bar device includes a bus bar configured to connect the inverter and the motor to each other; a plate portion into which the bus bar is inserted; and a resin portion.
    Type: Grant
    Filed: July 10, 2018
    Date of Patent: April 28, 2020
    Assignee: IHI Corporation
    Inventors: Yuji Sasaki, Takashi Yoshida, Tatsumi Inomata, Kuniaki Iizuka
  • Publication number: 20200109719
    Abstract: A centrifugal compressor includes: an impeller; a main flow passage which receives the impeller and extends in a rotation axis direction of the impeller; an auxiliary flow passage which includes an upstream communication portion communicating to the main flow passage and a downstream communication portion communicating to the main flow passage at closer to the impeller than the upstream communication portion, and extends in a rotation direction of the impeller; a plurality of opening/closing portions which each have an opening portion and are arranged in the auxiliary flow passage; and a drive unit configured to move at least one of the plurality of opening/closing portions in the rotation direction.
    Type: Application
    Filed: December 5, 2019
    Publication date: April 9, 2020
    Applicant: IHI Corporation
    Inventors: Takashi FUJIWARA, Ryusuke NUMAKURA, Kengo MATSUO, Kensuke HIRATA, Yuji SASAKI
  • Publication number: 20200083078
    Abstract: A substrate processing apparatus includes: a carrier storage rack configured to place and store a carrier that accommodates a substrate; a gas supply configured to supply an inert gas into the carrier placed on the carrier storage rack; and a controller configured to control whether to supply the inert gas into the carrier based on at least one of carrier information and substrate information.
    Type: Application
    Filed: August 23, 2019
    Publication date: March 12, 2020
    Inventors: Moriyoshi Kinoshita, Yuji Sasaki, Junichi Sato, Takashi Asakawa
  • Publication number: 20200047268
    Abstract: A gear machining apparatus creates a gear on a workpiece W by moving a gear cutting tool relatively with respect to the workpiece along the direction of the rotation axis of the workpiece W while synchronously rotating the gear cutting tool and the workpiece. One of a workpiece rotation speed controlling portion and a tool rotation speed controlling portion varies the rotation speed of one of the workpiece and the gear cutting tool and the other one of the workpiece rotation speed controlling portion and the tool rotation speed controlling portion synchronizes the rotation speed of the other one of the workpiece and the gear cutting tool with one of the rotation speed of the workpiece and the gear cutting tool.
    Type: Application
    Filed: October 11, 2017
    Publication date: February 13, 2020
    Applicant: JTEKT CORPORATION
    Inventors: Daichi KANDA, Takaaki HASHIMOTO, Yuji SASAKI, Yoshihiko YAMADA, Hisashi OTANI, Yoshitaro OHSAKI
  • Publication number: 20200040903
    Abstract: A bearing structure of the present disclosure includes a rotation shaft, a bearing that is attached in a housing to support the rotation shaft with respect to the housing and includes an inner race through which the rotation shaft is inserted and an outer race which includes an annular groove portion formed on an outer peripheral surface facing an inner wall surface of the housing, and an O-ring which is disposed on the groove portion of the outer race of the bearing, protrudes outward in a radial direction in relation to the outer peripheral surface, and comes into contact with the inner wall surface of the housing. A clearance is formed between the inner wall surface of the housing and the outer peripheral surface of the bearing. The clearance is larger than a radial displacement amount of the O-ring.
    Type: Application
    Filed: March 26, 2018
    Publication date: February 6, 2020
    Applicant: IHI Corporation
    Inventors: Kuniaki IIZUKA, Takashi YOSHIDA, Tatsumi INOMATA, Takuya OZASA, Kai llJIMA, Ryosuke YUMOTO, Takashi MORI, Yuji SASAKI
  • Publication number: 20200037712
    Abstract: A fastener tape includes a mounting part for mounting a fastener element and a sewing part for sewing a fabric. The mutually adjoining sides of the mounting part and sewing part are integrally connected to each other. Another side of the mounting part which is spaced distantly from the sewing part provides a fastener element mounting side for mounting the fastener element. The sewing part is constituted of a plain weave texture.
    Type: Application
    Filed: October 15, 2019
    Publication date: February 6, 2020
    Inventors: Go Takani, Yuji Sasaki
  • Patent number: 10537966
    Abstract: A machining apparatus that need not exchange a processing nozzle when changing a shaping condition, and increases the use efficiency of a material. The processing nozzle that performs processing by ejecting a processing material towards a molten pool formed on a process surface by an energy line includes a cylindrical inner housing that incorporates a path through which the energy line passes, and ejects the energy line from one end. The processing nozzle also includes a cylindrical outer housing that incorporates the inner housing, and has an inner surface tapered in the ejection direction of the energy line ejected from the inner housing. The processing nozzle also includes a slide mechanism that changes, along the energy line, the relative position of the outer housing with respect to the inner housing.
    Type: Grant
    Filed: March 4, 2015
    Date of Patent: January 21, 2020
    Assignee: TECHNOLOGY RESEARCH ASSOCIATION FOR FUTURE ADDITIVE MANUFACTURING
    Inventors: Yuji Sasaki, Hiroshi Ohno, Mitsuo Sasaki, Takashi Obara, Kazuyuki Masukawa