Patents by Inventor Fumito ODASHIMA

Fumito ODASHIMA 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).

  • Laser keyhole welding structure of aluminum material and laser keyhole welding method
    Patent number: 11338388
    Abstract: Disclosed is a laser keyhole welding structure and a keyhole welding method of an aluminum material which stably suppress the generation of sputtering to ensure a reliable electrical connection and obtain a mechanically strong connection. To achieve this, a laser keyhole welding structure of an aluminum material is formed by welding an aluminum material element constituting an electronic component by irradiating a laser beam to the electronic component, in which a tapered portion spread angle (?) of an upper portion of a welding nugget to be formed is 45° or less. Also disclosed is a laser keyhole welding structure of an aluminum material.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: May 24, 2022
    Assignee: NIPPON CHEMI-CON CORPORATION
    Inventors: Kazuhide Hayakawa, Fumito Odashima, Tatsuo Kubouchi
  • LASER KEYHOLE WELDING STRUCTURE OF ALUMINUM MATERIAL AND LASER KEYHOLE WELDING METHOD
    Publication number: 20200047282
    Abstract: Disclosed is a laser keyhole welding structure and a keyhole welding method of an aluminum material which stably suppress the generation of sputtering to ensure a reliable electrical connection and obtain a mechanically strong connection. To achieve this, a laser keyhole welding structure of an aluminum material is formed by welding an aluminum material element constituting an electronic component by irradiating a laser beam to the electronic component, in which a tapered portion spread angle (?) of an upper portion of a welding nugget to be formed is 45° or less. Also disclosed is a laser keyhole welding structure of an aluminum material.
    Type: Application
    Filed: March 29, 2018
    Publication date: February 13, 2020
    Inventors: Kazuhide HAYAKAWA, Fumito ODASHIMA, Tatsuo KUBOUCHI