Patents by Inventor Daisuke Murai

Daisuke Murai 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: 11677294
    Abstract: A power unit structure for a vehicle includes a motor disposed in a power unit room of the vehicle and configured to transmit a driving force to drive wheels of the vehicle, an electric power converter disposed in the power unit room of the vehicle, and an electric power distributor disposed in the power unit room of the vehicle. The electric power converter is configured to convert supplied electric power into electric power to be supplied to the motor and is disposed on an upper side of the motor. The electric power distributor is configured to distribute electric power supplied from a power supply to the electric power converter and is disposed at a position where at least a part of the electric power distributor overlaps the electric power converter in an up-down direction of the vehicle when viewed from a vehicle front-rear direction or a vehicle width direction.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: June 13, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Murai
  • Patent number: 11548557
    Abstract: There is provided a power unit mounting structure including: a power unit mounted at an upper side in a vehicle vertical direction relative to a pair of side members, the side members being spaced apart in a vehicle width direction at a vehicle front side or a vehicle rear side relative to a passenger compartment; a pair of upper side vehicle body structural members of which at least portions are disposed at outer sides in the vehicle width direction at the upper side in the vehicle vertical direction relative to the side members; and a brace that spans between the pair of upper side vehicle body structural members at the upper side in the vehicle vertical direction relative to the side members, the brace supporting a bottom portion of the power unit at the side thereof that is further from the passenger compartment in the vehicle front-and-rear direction.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: January 10, 2023
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Murai
  • Patent number: 11524561
    Abstract: A vehicle power unit room structure is provided including a motor that is disposed inside a power unit room and that is configured to transmit drive force to a drive wheel, a compressor that is disposed adjacent to the motor in a vehicle width direction so as to overlap with the motor as viewed along the vehicle width direction, and a power supply section that is configured to supply power supplied from a power source to the motor and the compressor, and that is disposed at a vehicle upper side of the compressor so as to overlap with the compressor as viewed along a vehicle vertical direction.
    Type: Grant
    Filed: January 8, 2021
    Date of Patent: December 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Murai
  • Patent number: 11518440
    Abstract: A vehicle front portion structure includes a motor, a stabilizer having an extending portion disposed at a vehicle front side of the motor and that extends further in a vehicle width direction than a length of the motor, and having an arm portion that extends toward a vehicle rear side from each end of the extending portion, a plurality of motor fixing portions, a part of the motor fixing portions being disposed at respective outer sides in the vehicle width direction relative to the motor and at a position between the motor and the extending portion, and a plurality of stabilizer support portions that support respective end parts of the extending portion, the stabilizer support portions being disposed further toward a front side than the motor fixing portions, and at least a part of the stabilizer support portions being aligned with the motor fixing portions in the vehicle front-rear direction.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: December 6, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Murai
  • Patent number: 11247574
    Abstract: A vehicle lower section structure includes, a suspension member; a contactless charging module attached to the suspension member and configured to receive power from a power supply module without contact; and an electrically conductive under-cover disposed adjacent to the contactless charging module in a vehicle front-rear direction at a vehicle lower side of the suspension member, and covering the suspension member from the vehicle lower side.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: February 15, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Murai, Yoshiki Terada
  • Patent number: 11136068
    Abstract: There is provided a vehicle front portion structure, including: a pair of front side members, each front side member including a main body portion, an upper flange portion and a lower flange portion, the main body portion forming a chamber when viewed in the vehicle front-rear direction, and the upper flange portion and lower flange portion extending in a vehicle vertical direction from the main body portion; a motor disposed fixed to the vehicle body; an air compressor that, when viewed from the vehicle front-rear direction, is disposed between one of the front side members and the motor, in the vehicle width direction; and a connection portion that is provided at the air compressor and that, when viewed from the vehicle front-rear direction, is disposed at the vehicle upper side or vehicle lower side relative to the main body portions, wiring being connected to the connection portion.
    Type: Grant
    Filed: January 28, 2020
    Date of Patent: October 5, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Murai
  • Patent number: 11095190
    Abstract: A power unit structure for a vehicle includes a motor disposed in a power unit room of the vehicle and configured to transmit a driving force to drive wheels of the vehicle, an electric power converter disposed in the power unit room of the vehicle, and an electric power distributor disposed in the power unit room of the vehicle. The electric power converter is configured to convert supplied electric power into electric power to be supplied to the motor and is disposed on an upper side of the motor. The electric power distributor is configured to distribute electric power supplied from a power supply to the electric power converter and is disposed at a position where at least a part of the electric power distributor overlaps the electric power converter in an up-down direction of the vehicle when viewed from a vehicle front-rear direction or a vehicle width direction.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: August 17, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Daisuke Murai
  • Publication number: 20210194318
    Abstract: A power unit structure for a vehicle includes a motor disposed in a power unit room of the vehicle and configured to transmit a driving force to drive wheels of the vehicle, an electric power converter disposed in the power unit room of the vehicle, and an electric power distributor disposed in the power unit room of the vehicle. The electric power converter is configured to convert supplied electric power into electric power to be supplied to the motor and is disposed on an upper side of the motor. The electric power distributor is configured to distribute electric power supplied from a power supply to the electric power converter and is disposed at a position where at least a part of the electric power distributor overlaps the electric power converter in an up-down direction of the vehicle when viewed from a vehicle front-rear direction or a vehicle width direction.
    Type: Application
    Filed: March 10, 2021
    Publication date: June 24, 2021
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Daisuke Murai
  • Patent number: 11034228
    Abstract: A vehicle power unit room structure is provided including a motor that is disposed inside a power unit room and that is configured to transmit drive force to a drive wheel, a compressor that is disposed adjacent to the motor in a vehicle width direction so as to overlap with the motor as viewed along the vehicle width direction, and a power supply section that is configured to supply power supplied from a power source to the motor and the compressor, and that is disposed at a vehicle upper side of the compressor so as to overlap with the compressor as viewed along a vehicle vertical direction.
    Type: Grant
    Filed: July 10, 2019
    Date of Patent: June 15, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Daisuke Murai
  • Publication number: 20210129652
    Abstract: A vehicle power unit room structure is provided including a motor that is disposed inside a power unit room and that is configured to transmit drive force to a drive wheel, a compressor that is disposed adjacent to the motor in a vehicle width direction so as to overlap with the motor as viewed along the vehicle width direction, and a power supply section that is configured to supply power supplied from a power source to the motor and the compressor, and that is disposed at a vehicle upper side of the compressor so as to overlap with the compressor as viewed along a vehicle vertical direction.
    Type: Application
    Filed: January 8, 2021
    Publication date: May 6, 2021
    Inventor: Daisuke MURAI
  • Publication number: 20200298715
    Abstract: A vehicle lower section structure includes, a suspension member; a contactless charging module attached to the suspension member and configured to receive power from a power supply module without contact; and an electrically conductive under-cover disposed adjacent to the contactless charging module in a vehicle front-rear direction at a vehicle lower side of the suspension member, and covering the suspension member from the vehicle lower side.
    Type: Application
    Filed: February 10, 2020
    Publication date: September 24, 2020
    Inventors: Daisuke MURAI, Yoshiki TERADA
  • Publication number: 20200283071
    Abstract: There is provided a vehicle front portion structure, including: a pair of front side members, each front side member including a main body portion, an upper flange portion and a lower flange portion, the main body portion forming a chamber when viewed in the vehicle front-rear direction, and the upper flange portion and lower flange portion extending in a vehicle vertical direction from the main body portion; a motor disposed fixed to the vehicle body; an air compressor that, when viewed from the vehicle front-rear direction, is disposed between one of the front side members and the motor, in the vehicle width direction; and a connection portion that is provided at the air compressor and that, when viewed from the vehicle front-rear direction, is disposed at the vehicle upper side or vehicle lower side relative to the main body portions, wiring being connected to the connection portion.
    Type: Application
    Filed: January 28, 2020
    Publication date: September 10, 2020
    Inventor: Daisuke MURAI
  • Publication number: 20200283068
    Abstract: There is provided a power unit mounting structure including: a power unit mounted at an upper side in a vehicle vertical direction relative to a pair of side members, the side members being spaced apart in a vehicle width direction at a vehicle front side or a vehicle rear side relative to a passenger compartment; a pair of upper side vehicle body structural members of which at least portions are disposed at outer sides in the vehicle width direction at the upper side in the vehicle vertical direction relative to the side members; and a brace that spans between the pair of upper side vehicle body structural members at the upper side in the vehicle vertical direction relative to the side members, the brace supporting a bottom portion of the power unit at the side thereof that is further from the passenger compartment in the vehicle front-and-rear direction.
    Type: Application
    Filed: January 24, 2020
    Publication date: September 10, 2020
    Inventor: Daisuke MURAI
  • Publication number: 20200262483
    Abstract: A vehicle front portion structure includes a motor, a stabilizer having an extending portion disposed at a vehicle front side of the motor and that extends further in a vehicle width direction than a length of the motor, and having an arm portion that extends toward a vehicle rear side from each end of the extending portion, a plurality of motor fixing portions, a part of the motor fixing portions being disposed at respective outer sides in the vehicle width direction relative to the motor and at a position between the motor and the extending portion, and a plurality of stabilizer support portions that support respective end parts of the extending portion, the stabilizer support portions being disposed further toward a front side than the motor fixing portions, and at least a part of the stabilizer support portions being aligned with the motor fixing portions in the vehicle front-rear direction.
    Type: Application
    Filed: January 20, 2020
    Publication date: August 20, 2020
    Inventor: Daisuke Murai
  • Publication number: 20200070640
    Abstract: A vehicle power unit room structure is provided including a motor that is disposed inside a power unit room and that is configured to transmit drive force to a drive wheel, a compressor that is disposed adjacent to the motor in a vehicle width direction so as to overlap with the motor as viewed along the vehicle width direction, and a power supply section that is configured to supply power supplied from a power source to the motor and the compressor, and that is disposed at a vehicle upper side of the compressor so as to overlap with the compressor as viewed along a vehicle vertical direction.
    Type: Application
    Filed: July 10, 2019
    Publication date: March 5, 2020
    Inventor: Daisuke MURAI
  • Publication number: 20200076270
    Abstract: A power unit structure for a vehicle includes a motor disposed in a power unit room of the vehicle and configured to transmit a driving force to drive wheels of the vehicle, an electric power converter disposed in the power unit room of the vehicle, and an electric power distributor disposed in the power unit room of the vehicle. The electric power converter is configured to convert supplied electric power into electric power to be supplied to the motor and is disposed on an upper side of the motor. The electric power distributor is configured to distribute electric power supplied from a power supply to the electric power converter and is disposed at a position where at least a part of the electric power distributor overlaps the electric power converter in an up-down direction of the vehicle when viewed from a vehicle front-rear direction or a vehicle width direction.
    Type: Application
    Filed: July 22, 2019
    Publication date: March 5, 2020
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Daisuke Murai
  • Patent number: 9941496
    Abstract: An on-board power source device comprises power storage modules. In the power storage modules, a plurality of power storage elements are arranged. The power storage module is stacked one upon another. An outlet of a discharge path is provided for discharging gas generated in the respective power storage elements. A frame member extends along the end portion of the power storage modules for fixing the respective upper and lower power storage modules. A bracket locates at the end portion of the power storage modules so as to cover the outlets, for fixing the upper power storage modules to the frame member. The frame member has a discharge space for discharging the gas to the outside of the vehicle. The bracket is provide with a passage part for communicating the outlet of the upper power storage module with the discharge space of the frame member.
    Type: Grant
    Filed: September 29, 2015
    Date of Patent: April 10, 2018
    Assignees: Toyota Jidosha Kabushiki Kaisha, Kabushiki Kaisha Toyota Jidoshaokki
    Inventors: Daisuke Murai, Ikkei Ohgitani
  • Patent number: 9899647
    Abstract: An onboard power supply apparatus includes: power storage modules each including power storage devices; a pair of brackets configured to come into contact with respective ends of the power storage modules vertically stacked so as to fix at least an upper power storage module to a vehicle; and an insertion portion that is disposed between at least one of the pair of brackets and an end of one of the power storage modules located between terminal portions of the vertically stacked power storage modules, a connecting member used for connecting the terminal portions of the vertically stacked power storage modules being inserted in the insertion portion.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: February 20, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Daisuke Murai, Nobuyoshi Fujiwara, Ikkei Ohgitani
  • Patent number: 9765008
    Abstract: A perfluorovinyloxy polyether carboxylic acid alkali metal salt represented by the general formula is provided: CF2?CF[OCF2CF(CF3)]bO(CF2)aO[CF(CF3)CF2O]cCF(CF3)COOM??[I], wherein M is alkali metal, preferably sodium or potassium, a is an integer of 1 to 6, preferably 2, and b+c is an integer of 0 to 6, preferably 0 or 1. This perfluorovinyloxy polyether carboxylic acid alkali metal salt is produced by subjecting a perfluorovinyloxy polyether carboxylic acid alkyl ester represented by the general formula: CF2?CF[OCF2CF(CF3)]bO(CF2)aO[CF(CF3)CF2O]cCF(CF3)COOR??[II], wherein R is an alkyl group having 1 to 12 carbon atoms, a is an integer of 1 to 6, and b+c is an integer of 0 to 6; to hydrolysis or solvolysis in the presence of an alkali metal hydroxide.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: September 19, 2017
    Assignee: Unimatec Co., Ltd.
    Inventors: Keisuke Kokin, Mitsuru Maeda, Daisuke Murai
  • Publication number: 20170222200
    Abstract: An onboard power supply apparatus includes: power storage modules each including power storage devices; a pair of brackets configured to come into contact with respective ends of the power storage modules vertically stacked so as to fix at least an upper power storage module to a vehicle; and an insertion portion that is disposed between at least one of the pair of brackets and an end of one of the power storage modules located between terminal portions of the vertically stacked power storage modules, a connecting member used for connecting the terminal portions of the vertically stacked power storage modules being inserted in the insertion portion.
    Type: Application
    Filed: October 13, 2015
    Publication date: August 3, 2017
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Daisuke MURAI, Nobuyoshi FUJIWARA, Ikkei OHGITANI