Patents by Inventor Natsuki Hashiba

Natsuki Hashiba 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).

  • Method of spot welding parts of an electromagnetic bell unit
    Patent number: 4968971
    Abstract: A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided.The bell unit of the present invention is characterized in that it is miniaturized in such a way that a yoke to which a coil and a bell hammer are attached is incorporated within a bell and the bell is fixed to the yoke.
    Type: Grant
    Filed: June 24, 1988
    Date of Patent: November 6, 1990
    Assignee: Seikosha Co., Ltd.
    Inventors: Junichi Aizawa, Satoru Yamauchi, Shoichiro Kumazawa, Natsuki Hashiba, Tomohiro Wada
  • Electromagnetic bell unit, its fitting structure and a method of welding the bell and the yoke of the unit
    Patent number: 4912453
    Abstract: A miniaturized electromagnetic bell unit suitable for use with an alarm clock and the like is provided.The bell unit of the present invention is characterized in that it is miniaturized in such a way that a yoke to which a coil and a bell hammer are attached is incorporated within a bell and the bell is fixed to the yoke.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: March 27, 1990
    Assignee: Seikosha Co., Ltd.
    Inventors: Junichi Aizawa, Satoru Yamauchi, Shoichiro Kumazawa, Natsuki Hashiba, Tomohiro Wada