Patents by Inventor Suomi Kurihara

Suomi Kurihara 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).

  • Ink jet head having a protective layer with a controlled argon content
    Patent number: 5946013
    Abstract: Disclosed is a thin-film resistor element for an ink jet head. In the thin-film resister element, a protective film is used having a multi-layered structure, the proportion of Ar atoms contained in a lower area of the protective film located in contact with the heating resistor is set between 0.2 wt % and 6.0 wt %, and that in an upper area of the protective film is set between 1.0 wt % and 9.0 wt %.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: August 31, 1999
    Assignee: Canon Kabushiki Kaisha
    Inventors: Suomi Kurihara, Yasumasa Yokoyama, Hiroto Matsuda, Hirokazu Komuro, Isao Kimura
  • Microprobe, method for producing the same, and information input and/or output apparatus utilizing the same
    Patent number: 5390161
    Abstract: A probe for reading an information from an object and/or inputting an information to an object is disclosed. The probe has a supporting member and a rod-shaped projection of which the end is positioned opposed to the object for information reading therefrom and/or information input thereto. The rod-shaped projection protrudes from a partial area of the supporting member. The information reading from the object and/or information input to the object is effected at the longitudinal end of the probe. The probe provides precise and accurate output and/or input of information regardless of the surface state of the object.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: February 14, 1995
    Assignee: Canon Kabushiki Kaisha
    Inventors: Suomi Kurihara, Haruki Kawada, Kiyoshi Takimoto, Yuji Kasanuki, Toshimitsu Kawase, Hisaaki Kawade, Ken Eguchi
  • Photoconductive device comprising polyimide film
    Patent number: 5158619
    Abstract: A photoconductive device employs an organic film between a pair of electrodes where the organic film is a polymer having a carbazole skeleton and an imide linkage in a repeating unit of the general formula: ##STR1## where R.sup.1 denotes a tetravalent organic group having 5 to 13 carbons.
    Type: Grant
    Filed: April 9, 1991
    Date of Patent: October 27, 1992
    Assignee: Canon Kabushiki Kaisha
    Inventors: Haruki Kawada, Yoshihiro Yanagisawa, Yuko Morikawa, Suomi Kurihara, Hiroshi Matsuda, Hideyuki Kawagishi, Kiyoshi Takimoto