Patents by Inventor Mitsufumi OKADA

Mitsufumi OKADA 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).

  • Forming apparatus and forming method using forming apparatus
    Patent number: 11833564
    Abstract: An upper die of a forming apparatus includes a first curved portion and a second curved portion between a second concave section and an upper holding surface. The first curved portion is curved in a direction away from the upper die. The second curved portion is curved toward the upper die. A blank holding surface of a blank holder holds a blank between the blank holding surface and the upper holding surface of the upper die. The blank holding surface faces the second curved portion. The blank holding surface includes a blank curved surface recessed along the second curved portion.
    Type: Grant
    Filed: August 14, 2022
    Date of Patent: December 5, 2023
    Assignee: Honda Motor Co., Ltd.
    Inventors: Yoshimitsu Ishihara, Kenichi Chida, Hiroki Sato, Mitsufumi Okada, Naoharu Wakida, Yuta Rokugawa
  • FORMING APPARATUS AND FORMING METHOD USING FORMING APPARATUS
    Publication number: 20230060061
    Abstract: An upper die of a forming apparatus includes a first curved portion and a second curved portion between a second concave section and an upper holding surface. The first curved portion is curved in a direction away from the upper die. The second curved portion is curved toward the upper die. A blank holding surface of a blank holder holds a blank between the blank holding surface and the upper holding surface of the upper die. The blank holding surface faces the second curved portion. The blank holding surface includes a blank curved surface recessed along the second curved portion.
    Type: Application
    Filed: August 14, 2022
    Publication date: February 23, 2023
    Inventors: Yoshimitsu ISHIHARA, Kenichi CHIDA, Hiroki SATO, Mitsufumi OKADA, Naoharu WAKIDA, Yuta ROKUGAWA