Patents by Inventor Shohachi Nihara

Shohachi Nihara 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 mask for a dot printer head apparatus
    Patent number: 4757760
    Abstract: A printing head apparatus for a dot printer including a frame and at least one printing wire unit which is secured to the frame. The printing wire unit has an electromagnetic actuator and a printing spring with one stationary end and a printing wire attached to the other end thereof. The printing spring carries an armature at an appropriate central portion thereof facing the core of the electromagnetic actuator. The printing spring is flat and tapered toward the distal end, and a bent portion is provided on the flat portion for securing the printing wire, while an indented portion is provided on the base portion of the printing spring. A wire mask enables the ink ribbon to be smoothly fed.
    Type: Grant
    Filed: November 12, 1985
    Date of Patent: July 19, 1988
    Assignee: Citizen Watch Co., Ltd.
    Inventors: Shohachi Nihara, Michio Koizumi, Masao Kunita, Seiichi Ohsawa