Patents by Inventor Hiroto Takahashi, deceased

Hiroto Takahashi, deceased 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).

  • Substrate and liquid jet recording head with particular electrode and resistor structures
    Patent number: 6139130
    Abstract: A substrate for a recording head includes a heat generating resistor for generating thermal energy to eject liquid, and a pair of opposed electrodes which are electrically connected to the heat generating resistor to supply electric signal to that heat generating resistor. A portion of the heat generating resistor interposed between the electrodes constitutes a heat generating portion, and the electrodes have respective ends adjacent to the heat generating resistor, each of which ends has a smooth convex shape. The width of a pattern constituting the heat generating resistor is greater than a width of a pattern constituting the electrodes.
    Type: Grant
    Filed: May 28, 1996
    Date of Patent: October 31, 2000
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroto Takahashi, deceased, Yasuyuki Tamura, Mineo Kaneko