Patents by Inventor Tomohisa Tominaga

Tomohisa Tominaga 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).

  • Battery housing device
    Patent number: 5017443
    Abstract: In a battery housing device including a case for receiving at least two batteries in a parallel condition, retaining means provided in the vicinity of one of inside surfaces of the case, and an electrode spring adapted to be retained by the retaining means, wherein positive and negative electrodes of the batteries are electrically connected to each other through the electrode spring.
    Type: Grant
    Filed: July 28, 1989
    Date of Patent: May 21, 1991
    Assignee: Alps Electric Co., Ltd.
    Inventors: Tomohisa Tominaga, Kazuichi Sato, Kouichi Otsuka, Toshiya Endo, Susumu Oikawa