Patents by Inventor Yukihiro Oba

Yukihiro Oba 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).

  • Capacitor microphone and portable telephone using the capacitor microphone
    Patent number: 6748091
    Abstract: To provide a capacitor microphone without molds or dies formed with a high accuracy for the manufacturing of spring terminals of the capacitor microphone, this invention provides a capacitor microphone including spring terminals attached to an insulator so as to make the spring terminals contact and conductive with contact points provided at the inside and the outside of a capacitor microphone main body. The spring terminals are provided with leg portions each formed by a pair of wire rods having elasticity which protrude in directions separating to each other toward the outside. The spring terminals can be manufactured in a short time and at a low cost and realize a stable electrical connection.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: June 8, 2004
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayoshi Hohjyo, Yukihiro Oba
  • Capacitor microphone and portable telephone using the capacitor microphone
    Publication number: 20030081801
    Abstract: To provide a capacitor microphone without molds or dies formed with a high accuracy for the manufacturing of spring terminals of the capacitor microphone, this invention provides a capacitor microphone including spring terminals attached to an insulator so as to make the spring terminals contact and conductive with contact points provided at the inside and the outside of a capacitor microphone main body. The spring terminals are provided with leg portions each formed by a pair of wire rods having elasticity which protrude in directions separating to each other toward the outside. The spring terminals can be manufactured in a short time and at a low cost and realize a stable electrical connection.
    Type: Application
    Filed: October 24, 2002
    Publication date: May 1, 2003
    Applicant: Matsushita Electric Industrial Co., Ltd.
    Inventors: Masayoshi Hohjyo, Yukihiro Oba