Patents by Inventor Koichi TOKUBO

Koichi TOKUBO 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: 11462504
    Abstract: A semiconductor apparatus includes: a metal plate; a semiconductor device mounted on the metal plate; an external terminal electrically connected to the semiconductor device or the metal plate; a metal wire wire-bonded to the semiconductor device, the metal plate or the external terminal; and a package covering and resin-sealing the semiconductor device, the metal plate and the metal wire, wherein the metal wire is bonded to a top-layer electrode of the semiconductor device at a first bond and a second bond, and the metal wire includes a low loop that is positioned between the first bond and the second bond, is adjacent to at least one of the first bond and the second bond and is not in contact with the top-layer electrode.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: October 4, 2022
    Assignee: Mitsubishi Electric Corporation
    Inventor: Koichi Tokubo
  • Publication number: 20210280554
    Abstract: A semiconductor apparatus includes: a metal plate; a semiconductor device mounted on the metal plate; an external terminal electrically connected to the semiconductor device or the metal plate; a metal wire wire-bonded to the semiconductor device, the metal plate or the external terminal; and a package covering and resin-sealing the semiconductor device, the metal plate and the metal wire, wherein the metal wire is bonded to a top-layer electrode of the semiconductor device at a first bond and a second bond, and the metal wire includes a low loop that is positioned between the first bond and the second bond, is adjacent to at least one of the first bond and the second bond and is not in contact with the top-layer electrode.
    Type: Application
    Filed: October 7, 2020
    Publication date: September 9, 2021
    Applicant: Mitsubishi Electric Corporation
    Inventor: Koichi TOKUBO
  • Publication number: 20150270240
    Abstract: A power semiconductor element includes an electrode layer made of a conductor. A first wiring portion is made of a conductor and is apart from the power semiconductor element. At least one main bonding wire has one end on the electrode layer and the other end on the first wiring portion. At least one sub-bonding wire supports the main bonding wire and has both ends on one of the electrode layer and the first wiring portion.
    Type: Application
    Filed: December 16, 2014
    Publication date: September 24, 2015
    Applicant: Mitsubishi Electric Corporation
    Inventor: Koichi TOKUBO