Patents by Inventor Tomoaki MITSUNAGA

Tomoaki MITSUNAGA 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).

  • Publication number: 20220223544
    Abstract: In a semiconductor device, a semiconductor element has a front electrode and a back electrode. The back electrode is connected to a wiring member through a bonding member. Wire pieces are disposed in the bonding member, and bonded to a bonding surface of the wiring member to protrude toward the semiconductor element. The bonding member has, in a plan view, a central region that overlaps with a central portion of the semiconductor element including an element center, and an outer peripheral region that includes a portion overlapping with an outer peripheral portion of the semiconductor element surrounding the central portion and surrounds the central region. At least four wire pieces are disposed in the outer peripheral region at positions corresponding to at least four respective corners of the semiconductor element. At least one wire piece is disposed to extend toward the element center in the plan view.
    Type: Application
    Filed: March 30, 2022
    Publication date: July 14, 2022
    Inventors: Daisuke FUKUOKA, Tomomi OKUMURA, Yuuji OOTANI, Wataru KOBAYASHI, Takumi NOMURA, Tomoaki MITSUNAGA, Takahiro HIRANO, Takamichi SAKAI, Kengo OKA
  • Patent number: 8604608
    Abstract: A semiconductor module is disclosed that includes a semiconductor element, a capacitor configured to be electrically connected to the semiconductor element and a heat sink, wherein the semiconductor and the capacitor are stacked with each other via the heat sink, and wherein the semiconductor element is disposed in a position overlapping with the capacitor as viewed from a stack direction.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: December 10, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Jiro Tsuchiya, Torahiko Sasaki, Makoto Imai, Hideki Tojima, Tadakazu Harada, Tomoaki Mitsunaga
  • Publication number: 20130009168
    Abstract: A semiconductor module is disclosed that includes a semiconductor element, a capacitor configured to be electrically connected to the semiconductor element and a heat sink, wherein the semiconductor and the capacitor are stacked with each other via the heat sink, and wherein the semiconductor element is disposed in a position overlapping with the capacitor as viewed from a stack direction.
    Type: Application
    Filed: April 17, 2012
    Publication date: January 10, 2013
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jiro TSUCHIYA, Torahiko SASAKI, Makoto IMAI, Hideki TOJIMA, Tadakazu HARADA, Tomoaki MITSUNAGA