Patents by Inventor Tsunetaka Araki

Tsunetaka Araki 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).

  • Self-ballasted compact fluorescent lamp
    Patent number: D346456
    Type: Grant
    Filed: March 31, 1993
    Date of Patent: April 26, 1994
    Assignee: Matsushita Electronics Corporation
    Inventors: Takeshi Matsumura, Tsunetaka Araki