Patents by Inventor Yuuhei Kunikata

Yuuhei Kunikata 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).

  • Exhaust heat exchanger
    Patent number: 8925624
    Abstract: An exhaust heat exchanger includes a water tank accommodating tubes and having an outside space defined outside of the tubes, a gas tank having an exhaust passage and an outside space defined outside of the exhaust passage, a dividing portion to separate the outside space of the water tank from the exhaust passage of the gas tank, and a communication portion. The outside space of the gas tank and the outside space of the water tank communicate with each other through the communication portion.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: January 6, 2015
    Assignee: Denso Corporation
    Inventors: Isao Kuroyanagi, Takayuki Hayashi, Yasutoshi Yamanaka, Yuuhei Kunikata, Takeshi Iguchi, Ryoichi Sanada, Kenji Yamada, Takao Ikeda
  • Exhaust heat exchanger
    Publication number: 20110247318
    Abstract: An exhaust heat exchanger includes a water tank accommodating tubes and having an outside space defined outside of the tubes, a gas tank having an exhaust passage and an outside space defined outside of the exhaust passage, a dividing portion to separate the outside space of the water tank from the exhaust passage of the gas tank, and a communication portion. The outside space of the gas tank and the outside space of the water tank communicate with each other through the communication portion.
    Type: Application
    Filed: April 4, 2011
    Publication date: October 13, 2011
    Applicant: DENSO CORPORATION
    Inventors: Isao Kuroyanagi, Takayuki Hayashi, Yasutoshi Yamanaka, Yuuhei Kunikata, Takeshi Iguchi, Ryoichi Sanada, Kenji Yamada, Takao Ikeda