Patents by Inventor Takashi Hasanuma

Takashi Hasanuma 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).

  • PTC conductive polymer devices
    Patent number: 5909168
    Abstract: A housing contains a PTC element which can be easily inserted and removed. Conductive metal retaining elements of the housing are secured to the base of the housing, and retain the PTC element with a generally planar portion parallel to the electrodes of the PTC component. The retaining elements also have slidable contact between the elements and the top of the housing so as to modify the elastic deformation of the element and allow for insertion and removal of the PTC element.
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: June 1, 1999
    Assignee: Raychem Corporation
    Inventors: Naofumi Miyasaka, Takashi Hasanuma, Syozo Fukuyama