Patents by Inventor Chiaki Miyazawa

Chiaki Miyazawa 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).

  • Wire printer printing head
    Patent number: 4135830
    Abstract: A wire printer printing head comprises a support member, a plurality of printing elements having a print wire with a flap-armature electromagnet and a sound absorbing cover. The printing element are radially and slidably mounted to the support member and adjustable to a mounting position of each printing element with respect to the support member by an eccentric pin. The sound absorbing cover composed of a core plate and sound absorbing material is secured to the support member and surrounds all printing elements.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: January 23, 1979
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukio Hishida, Yuichi Asai, Toshikatsu Kondo, Akira Asai, Atsuo Sakaida, Chiaki Miyazawa
  • Flap-armature electromagnet
    Patent number: 4117435
    Abstract: A flap-armature electromagnet comprises a U-shaped yoke, a pole core, a coil, a flap-armature, a compression spring and a coil spring. The flap-armature is rockingly supported on the yoke by means of projections formed at the upper rear end of the yoke and notches formed at both sides of the flap-armature. Each end of the coil spring is connected to each of the projections for pressing the flap-armature on a rocking axis of the flap-armature.
    Type: Grant
    Filed: May 31, 1977
    Date of Patent: September 26, 1978
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Yukio Hishida, Yuichi Asai, Toshikatsu Kondo, Akira Asai, Atsuo Sakaida, Chiaki Miyazawa