Patents by Inventor Yoichi Makimoto

Yoichi Makimoto 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: 11935820
    Abstract: An object is to suppress a lift of an external terminal when an external force is applied, thereby improving the reliability of a semiconductor device. A heat radiating plate 10 having on one main surface a circuit area 54 in which a semiconductor element 50 is arranged, a pair of terminals 31 and 32 connected to the semiconductor element 50, a resin housing 20 that covers the circuit area 54 of the heat radiating plate 10 to seal the semiconductor element 50, and has a terminal surface 22 formed on an upper surface, a pair of side surfaces in the longitudinal direction, and a pair of front and rear surfaces in the lateral direction, are included. The resin housing 20 has a pair of bending contact portions 22e and 23e that come into respectively contact with the pair of terminals 31 and 32 to define bending positions of the terminals 31 and 32. The pair of bending contact portions 22e and 23e are formed to have different heights.
    Type: Grant
    Filed: November 20, 2020
    Date of Patent: March 19, 2024
    Assignee: SANSHA ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Tomohiro Yamanaka, Yoichi Makimoto
  • Publication number: 20220278008
    Abstract: A semiconductor module includes a case accommodating a semiconductor element inside and being entirely molded by a resin, a first terminal placed on a top portion of the case and being a terminal to which a bus bar being a flat and elongated metal conductor is to be attached, a second terminal provided on the top portion of the case and being adjacent to the first terminal, and a rib provided between the first terminal and the second terminal. The rib includes a protrusion protruding toward the bus bar.
    Type: Application
    Filed: December 24, 2019
    Publication date: September 1, 2022
    Inventors: Shohei MAEDA, Yoichi MAKIMOTO
  • Publication number: 20220181226
    Abstract: An object is to suppress a lift of an external terminal when an external force is applied, thereby improving the reliability of a semiconductor device. A heat radiating plate 10 having on one main surface a circuit area 54 in which a semiconductor element 50 is arranged, a pair of terminals 31 and 32 connected to the semiconductor element 50, a resin housing 20 that covers the circuit area 54 of the heat radiating plate 10 to seal the semiconductor element 50, and has a terminal surface 22 formed on an upper surface, a pair of side surfaces in the longitudinal direction, and a pair of front and rear surfaces in the lateral direction, are included. The resin housing 20 has a pair of bending contact portions 22e and 23e that come into respectively contact with the pair of terminals 31 and 32 to define bending positions of the terminals 31 and 32. The pair of bending contact portions 22e and 23e are formed to have different heights.
    Type: Application
    Filed: November 20, 2020
    Publication date: June 9, 2022
    Applicant: Sansha Electric Manufacturing Co., Ltd.
    Inventors: Tomohiro YAMANAKA, Yoichi MAKIMOTO
  • Patent number: D916039
    Type: Grant
    Filed: March 20, 2020
    Date of Patent: April 13, 2021
    Assignee: SANSHA ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Tomohiro Yamanaka, Yoichi Makimoto