Patents by Inventor Yoji Matsufuji

Yoji Matsufuji 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).

  • Recording liquid composition
    Patent number: 4295889
    Abstract: A recording liquid composition for use in a recording system of the type in which the recording liquid composition is jetted from a small orifice in a form of droplet flying toward a recording material on which an image is to be printed, said recording liquid composition comrising, as its recording agent component, a particular compound as well defined in the specification by the general formula (A) or (B).
    Type: Grant
    Filed: November 28, 1979
    Date of Patent: October 20, 1981
    Assignee: Canon Kabushiki Kaisha
    Inventors: Tsuyoshi Eida, Masahiro Haruta, Yasuhiro Yano, Yoji Matsufuji, Tokuya Ohta
  • Liquid crystal display device
    Patent number: 4139278
    Abstract: A liquid crystal display device has a power source, a voltage converter, a liquid crystal display cell and a control signal generator. The voltage supplied from the power source to the converter is converted into a voltage for operating the liquid crystal display cell and such converted voltage is supplied to the liquid crystal display cell while a control signal derived from the control signal generator is also applied to the liquid crystal display cell, thereby effecting display.
    Type: Grant
    Filed: July 27, 1976
    Date of Patent: February 13, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventors: Seiichi Matsumoto, Tokuichi Tsunekawa, Takashi Uchiyama, Naoki Ayata, Yoji Matsufuji, Yukitoshi Ohkubo
  • Liquid crystalline composition
    Patent number: 4137192
    Abstract: A liquid crystalline composition comprises at least one kind of biphenyl type liquid crystal materials having the positive dielectric anisotropy and at least one kind of other liquid crystal materials. The novel liquid crystalline composition of the present invention possesses extended ranges of the nematic mesomorphic temperature which are significantly larger than those of the individual liquid crystal material of the composition and are stable at a room temperature.
    Type: Grant
    Filed: January 23, 1975
    Date of Patent: January 30, 1979
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoji Matsufuji