Patents by Inventor Takuya SAGAWA

Takuya SAGAWA 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).

  • Electric compressor
    Patent number: 11611265
    Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: March 21, 2023
    Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kouki Yamamoto, Mikio Yoshida, Kenji Hayakawa, Takuya Sagawa, Yusuke Kinoshita, Shunsuke Ambo, Junya Kaida
  • ELECTRIC COMPRESSOR
    Publication number: 20210320566
    Abstract: An electric compressor includes a compression part, an electric motor, an inverter device, and a housing. The inverter device includes an inverter circuit, a noise reduction unit, and a circuit board. The noise reduction unit includes a common mode choke coil and a smoothing capacitor. The common mode choke coil includes an annular core, a pair of winding wires, and an annular electrical conductor. The electrical conductor is split into a first metal plate and a second metal plate in a circumferential direction. The first metal plate is thermally coupled to the housing. The second metal plate is electrically connected to the first metal plate. An electrical resistance value of the first metal plate is larger than that of the second metal plate.
    Type: Application
    Filed: April 6, 2021
    Publication date: October 14, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Kouki YAMAMOTO, Mikio YOSHIDA, Kenji HAYAKAWA, Takuya SAGAWA, Yusuke KINOSHITA, Shunsuke AMBO, Junya KAIDA
  • VEHICLE ELECTRIC COMPRESSOR
    Publication number: 20210301803
    Abstract: A vehicle electric compressor includes a compression part, an electric motor, and an inverter device. The inverter device includes a noise reduction unit that includes a common mode choke coil. The common mode choke coil includes a core, a first winding wire, a second winding wire, and an electrical conductor that covers the core. The electrical conductor has a first insulation layer and a second insulation layer. The first insulation layer, the electrical conductor, and the second insulation layer form a laminated body including a loop-shaped portion that covers the core and a joint portion.
    Type: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Shunsuke AMBO, Yoshiki NAGATA, Takashi KAWASHIMA, Hiroshi FUKASAKU, Kaida JUNYA, Takeshi HARASAWA, Kenji HAYAKAWA, Takuya SAGAWA, Fumihiro KAGAWA, Mikio YOSHIDA, Kouki YAMAMOTO