Patents by Inventor Koichi NAMBU

Koichi NAMBU 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).

  • Power conversion device
    Patent number: 10608548
    Abstract: A power conversion device that can prevent decrease in sealing properties between a case and a fixed member. The power conversion device has a case, a fixed member, and a seal member. The case has a metallic case body. The fixed member is fixed to the case from the outside of the case. The seal member adheres closely to both the case and the fixed member to ensure water-tightness between the case and the fixed member. The case is partly formed with a corrosion-resistant portion that is less likely to suffer corrosion than the case body. The fixed member is attached to the corrosion-resistant portion via the seal member.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: March 31, 2020
    Assignee: DENSO CORPORATION
    Inventors: Daisuke Harada, Koichi Nambu, Norihiro Tanaka
  • POWER CONVERSION DEVICE
    Publication number: 20190089265
    Abstract: A power conversion device that can prevent decrease in sealing properties between a case and a fixed member. The power conversion device has a case, a fixed member, and a seal member. The case has a metallic case body. The fixed member is fixed to the case from the outside of the case. The seal member adheres closely to both the case and the fixed member to ensure water-tightness between the case and the fixed member. The case is partly formed with a corrosion-resistant portion that is less likely to suffer corrosion than the case body. The fixed member is attached to the corrosion-resistant portion via the seal member.
    Type: Application
    Filed: January 18, 2017
    Publication date: March 21, 2019
    Applicant: DENSO CORPORATION
    Inventors: Daisuke HARADA, Koichi NAMBU, Norihiro TANAKA