Patents by Inventor Yasushi Takagi

Yasushi Takagi 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: 12090448
    Abstract: The present disclosure provides a carbon material including a carbon-containing layer having opening parts; and a solid body provided so as to cover the opening parts of the carbon-containing layer, in which the solid body has hole parts communicating with the opening parts.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: September 17, 2024
    Assignees: TAKAGI Co., Ltd., Shinshu University
    Inventors: Katsumi Kaneko, Toshio Takagi, Yasushi Shimizu, Stevic Dragana, Katsuyuki Murata
  • Publication number: 20240244795
    Abstract: Slits includes a plurality of first slits arranged to be straight on a base and a plurality of second slits arranged to be straight on the base and intersecting the first slits, each pin fin includes a pin-fin lower portion being continuous with and standing on the base and a pin-fin upper portion being continuous with and extending from the pin-fin lower portion, and slit widths of the first slits and the second slits, the slit widths corresponding to the pin-fin upper portions, are greater than slit widths of the first slits and the second slits, the slit widths corresponding to the pin-fin lower portion.
    Type: Application
    Filed: March 14, 2022
    Publication date: July 18, 2024
    Applicant: NIPPON LIGHT METAL COMPANY, LTD.
    Inventors: Takumi NAKAMURA, Kazuhiro KUWAHARA, Yasushi TAKAGI, Hitoshi IISAKA
  • Publication number: 20240109433
    Abstract: A vehicle includes a high-voltage battery, a motor generator, a high-voltage system wire configured to electrically couple the high-voltage battery and the motor generator, a system main relay configured to turn ON or OFF electric coupling between the high-voltage battery and the motor generator on the high-voltage system wire, an atmospheric pressure sensor configured to detect an atmospheric pressure at a position of the vehicle, and a control device. The control device includes one or more processors, and one or more memories coupled to the one or more processors. The one or more processors are configured to execute a process including performing SMR-OFF control for controlling the system main relay to turn OFF when the system main relay is ON and the atmospheric pressure detected by the atmospheric pressure sensor is lower than a first atmospheric pressure threshold.
    Type: Application
    Filed: September 15, 2023
    Publication date: April 4, 2024
    Inventors: Yasushi TAKAGI, Hayata MIMATSU
  • Publication number: 20240113353
    Abstract: A battery temperature control apparatus includes: a high voltage battery installed in a vehicle; a low voltage battery installed in the vehicle; a first temperature control system configured to adjust a temperature of the low voltage battery using air supplied from outside the vehicle; and a second temperature control system that is different from the first temperature control system and configured to adjust a temperature of the high voltage battery using a heat medium circulating within the vehicle. The second temperature control system includes: a first heat exchanger configured to exchange heat between the high voltage battery and the heat medium; and a second heat exchanger configured to exchange heat between the low voltage battery and the heat medium. The temperature of the low voltage battery is adjustable using the heat medium supplied to the second heat exchanger.
    Type: Application
    Filed: September 7, 2023
    Publication date: April 4, 2024
    Inventor: Yasushi TAKAGI
  • Publication number: 20240092216
    Abstract: A charging prediction system includes vehicles, a charging station, and a control device including one or more processors and one or more memories. The one or more processors are configured to execute a process. The process includes accumulating, in a storage device, record data that is actual data on a charged vehicle ratio for a first remaining traveling distance of each of the vehicles traveling along a specific traveling road. The process includes deriving, based on the record data, a predicted value of the charged vehicle ratio for each vehicle in a predetermined group including ones of the vehicles currently traveling along the specific traveling road. The process includes deriving a predicted waiting period that is a predicted value of a waiting period to a start of charging at the charging station based on the predicted values of the charged vehicle ratios.
    Type: Application
    Filed: August 25, 2023
    Publication date: March 21, 2024
    Inventors: Satoshi INOUE, Hayata MIMATSU, Yasushi TAKAGI
  • Patent number: 11919360
    Abstract: A vehicle heat management system includes a refrigerant circuit, a heating circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit is configured to circulate a refrigerant to regulate a temperature inside a passenger compartment therethrough. The heating circuit is configured to circulate a liquid that exchanges heat with the refrigerant therethrough. The heating circuit is capable of regulating the temperature inside the passenger compartment. The battery temperature regulation circuit is configured to regulate a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit is couplable to the battery temperature regulation circuit and configured to circulate a liquid able to cool an electric part for driving a vehicle therethrough.
    Type: Grant
    Filed: August 1, 2019
    Date of Patent: March 5, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Yasushi Takagi, Shinya Kurasawa
  • Patent number: 11897309
    Abstract: A vehicle heat management system includes a refrigerant circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit circulates a liquid cooled by a radiator circulates through the electric part cooling circuit, and is capable of cooling a first and second pieces for driving a vehicle. In a first mode, the liquid cooled by the radiator cools the first piece of equipment, the refrigerant of the refrigerant circuit cools the second piece of equipment, and the liquid which has exchanged heat with the refrigerant is introduced in parallel to the battery and the second piece of equipment.
    Type: Grant
    Filed: April 22, 2022
    Date of Patent: February 13, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Yasushi Takagi, Yoshiyuki Jin
  • Publication number: 20240034160
    Abstract: A vehicle charging system to be applied to an electric vehicle includes a rectifier, an inverter, first and second relays, and a control processor. The rectifier is disposed on a charging path. The inverter is disposed on a first power feeding path. The first and second relays are respectively disposed on the charging path and a second power feeding path. The control processor performs control that allows for: contactless charging via the charging path from external equipment; and first power feeding to an external device via the charging path and the first power feeding path from the external equipment, or second power feeding to the external device via the second power feeding path from the external equipment. The control processor controls operation states of the relays in accordance with power being supplied from the external equipment, power requested at a battery, and power necessary at the external device.
    Type: Application
    Filed: July 20, 2023
    Publication date: February 1, 2024
    Applicant: SUBARU CORPORATION
    Inventors: Yasufumi TANAKA, Hayata MIMATSU, Yasushi TAKAGI
  • Patent number: 11824180
    Abstract: A vehicle includes a battery pack, an air conditioning system, a communication member, a pack humidity detector, an outside air humidity detector, and a controller. The battery pack contains a battery module. The air conditioning system is configured to regulate humidity of air and send the air. The communication member fluidly connects a blowing port of the air conditioning system and an inside of the battery pack. The pack humidity detector is configured to detect humidity in the inside of the battery pack. The outside air humidity detector is configured to detect humidity of an outside air. The controller is configured to control the air conditioning system so that the humidity in the battery pack is equal to or lower than the humidity of the outside air.
    Type: Grant
    Filed: July 28, 2021
    Date of Patent: November 21, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Yasushi Takagi, Toshiaki Naruke
  • Publication number: 20220242194
    Abstract: A vehicle heat management system includes a refrigerant circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit circulates a liquid cooled by a radiator circulates through the electric part cooling circuit, and is capable of cooling a first and second pieces for driving a vehicle. In a first mode, the liquid cooled by the radiator cools the first piece of equipment, the refrigerant of the refrigerant circuit cools the second piece of equipment, and the liquid which has exchanged heat with the refrigerant is introduced in parallel to the battery and the second piece of equipment.
    Type: Application
    Filed: April 22, 2022
    Publication date: August 4, 2022
    Applicant: SUBARU CORPORATION
    Inventors: Yasushi TAKAGI, Yoshiyuki JIN
  • Publication number: 20220059887
    Abstract: A vehicle includes a battery pack, an air conditioning system, a communication member, a pack humidity detector, an outside air humidity detector, and a controller. The battery pack contains a battery module. The air conditioning system is configured to regulate humidity of air and send the air. The communication member fluidly connects a blowing port of the air conditioning system and an inside of the battery pack. The pack humidity detector is configured to detect humidity in the inside of the battery pack. The outside air humidity detector is configured to detect humidity of an outside air. The controller is configured to control the air conditioning system so that the humidity in the battery pack is equal to or lower than the humidity of the outside air.
    Type: Application
    Filed: July 28, 2021
    Publication date: February 24, 2022
    Applicant: SUBARU CORPORATION
    Inventors: Yasushi TAKAGI, Toshiaki NARUKE
  • Publication number: 20200101810
    Abstract: A vehicle heat management system includes a refrigerant circuit, a heating circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit is configured to circulate a refrigerant to regulate a temperature inside a passenger compartment therethrough. The heating circuit is configured to circulate a liquid that exchanges heat with the refrigerant therethrough. The heating circuit is capable of regulating the temperature inside the passenger compartment. The battery temperature regulation circuit is configured to regulate a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit is couplable to the battery temperature regulation circuit and configured to circulate a liquid able to cool an electric part for driving a vehicle therethrough.
    Type: Application
    Filed: August 1, 2019
    Publication date: April 2, 2020
    Applicant: SUBARU CORPORATION
    Inventors: Yasushi TAKAGI, Shinya KURASAWA
  • Publication number: 20200101816
    Abstract: A vehicle heat management system includes a refrigerant circuit and an electric part cooling circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The electric part cooling circuit circulates a liquid cooled by a radiator through the electric part cooling circuit. The electric part cooling circuit is capable of cooling a first piece of equipment and a second piece of equipment for driving a vehicle. In a predetermined mode, the liquid cooled by the radiator cools the first piece of equipment, the refrigerant of the refrigerant circuit cools the second piece of equipment, and the liquid that has exchanged heat with the refrigerant is introduced in parallel to the battery and the second piece of equipment.
    Type: Application
    Filed: July 11, 2019
    Publication date: April 2, 2020
    Applicant: SUBARU CORPORATION
    Inventor: Yasushi TAKAGI
  • Publication number: 20200101814
    Abstract: A vehicle heat management system includes a refrigerant circuit, a battery temperature regulation circuit, and an electric part cooling circuit. The refrigerant circuit circulates a refrigerant to regulate a temperature inside a passenger compartment through the refrigerant circuit. The battery temperature regulation circuit regulates a temperature of a battery by introducing a liquid that exchanges heat with the refrigerant to the battery. The electric part cooling circuit circulates a liquid cooled by a radiator circulates through the electric part cooling circuit, and is capable of cooling a first and second pieces for driving a vehicle. In a first mode, the liquid cooled by the radiator cools the first piece of equipment, the refrigerant of the refrigerant circuit cools the second piece of equipment, and the liquid which has exchanged heat with the refrigerant is introduced in parallel to the battery and the second piece of equipment.
    Type: Application
    Filed: July 3, 2019
    Publication date: April 2, 2020
    Applicant: SUBARU CORPORATION
    Inventors: Yasushi TAKAGI, Yoshiyuki JIN
  • Patent number: 8835785
    Abstract: A key switch structure capable of reducing the height of a key switch, reducing the number of components, and reducing manufacturing costs. The key switch structure includes: a key top; first and second linking mechanisms and adapted to support the key top; a membrane sheet having a contact point portion; a back plate disposed below the membrane sheet and having a function to guide light; and an LED sheet having an LED as a light emitting element disposed thereon, wherein the LED is disposed to be adjacent to the back plate.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: September 16, 2014
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shigeru Yamada, Yasushi Takagi
  • Patent number: 8569640
    Abstract: A key switch structure is provided whose waterproofing property is improved without affecting a contact of a membrane sheet. The upper surfaces of the membrane sheet, the embossed part and the circumferential bend part of a back plate are formed on one and the same plane, and a thermal sheet is welded to those upper surfaces. The thermal sheet comprises a thermally meltable, adhesive sheet, which will be heated and pressed with heat rollers to be welded to the upper surfaces. The back plate has an air vent hole formed in its bottom portion.
    Type: Grant
    Filed: May 28, 2009
    Date of Patent: October 29, 2013
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shigeru Yamada, Yasushi Takagi
  • Patent number: 8481874
    Abstract: Provided is a key switch structure wherein a membrane sheet (7) having a movable contact point (7e) and a stationary contact point (7d) is provided between a housing (5), which supports a key top (1) so as to allow the key top to be pushed downward and a base plate (8). The movable contact point (7e) is brought into contact with the stationary contact point (7d) by a downward push to the key top (1), so that a switch is closed. In the key switch structure, the inside of a device's main body is completely shielded from outside air, and water is completely prevented from entering the inside of the device's main body. A plate (6) provided with a plurality of attachment holes (6g) corresponding to fixing pins (5f) of the housing (5) is provided on the membrane sheet (7), so that the fixing pins (5f) are secured in the attachment holes (6g) of the plate (6).
    Type: Grant
    Filed: June 4, 2010
    Date of Patent: July 9, 2013
    Assignee: Oki Electric Industry Co., Ltd.
    Inventor: Yasushi Takagi
  • Patent number: 8022322
    Abstract: A key switch arrangement is able to prevent liquid such as water from entering a membrane sheet and staying therein. The key switch arrangement includes a waterproof sheet arranged above the membrane sheet, a first fixing member arranged in above the waterproof sheet and having a first projection protruding on the side of the waterproof sheet, and a second fixing member arranged below the membrane sheet and having a second projection protruding on the side of the membrane sheet. In the waterproof sheet and the second projection, holes are formed to which the first projection enters, while in the membrane sheet, a hole is formed to which the second projection enters so as to adhere the waterproof sheet closely to the second projection.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: September 20, 2011
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Shigeru Yamada, Yasushi Takagi
  • Publication number: 20110162948
    Abstract: Provided is a key switch structure wherein a membrane sheet (7) having a movable contact point (7e) and a stationary contact point (7d) is provided between a housing (5), which supports a key top (1) so as to allow the key top to be pushed downward and a base plate (8). The movable contact point (7e) is brought into contact with the stationary contact point (7d) by a downward push to the key top (1), so that a switch is closed. In the key switch structure, the inside of a device's main body is completely shielded from outside air, and water is completely prevented from entering the inside of the device's main body. A plate (6) provided with a plurality of attachment holes (6g) corresponding to fixing pins (5f) of the housing (5) is provided on the membrane sheet (7), so that the fixing pins (5f) are secured in the attachment holes (6g) of the plate (6).
    Type: Application
    Filed: June 4, 2010
    Publication date: July 7, 2011
    Applicant: OKI ELECTRIC INDUSTRY CO., LTD.
    Inventor: Yasushi Takagi
  • Publication number: 20110108401
    Abstract: A key switch structure is provided whose waterproofing property is improved without affecting a contact of a membrane sheet. The upper surfaces of the membrane sheet, the embossed part and the circumferential bend part of a back plate are formed on one and the same plane, and a thermal sheet is welded to those upper surfaces. The thermal sheet comprises a thermally meltable, adhesive sheet, which will be heated and pressed with heat rollers to be welded to the upper surfaces. The back plate has an air vent hole formed in its bottom portion.
    Type: Application
    Filed: May 28, 2009
    Publication date: May 12, 2011
    Inventors: Shigeru Yamada, Yasushi Takagi