Patents by Inventor Yoshizo Tashiro

Yoshizo Tashiro 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).

  • Patent number: 4678284
    Abstract: A liquid crystal display comprises two sheets of plastic film, two transparent electrodes respectively formed on one sides of the sheets and opposed to each other with spacer powder therebetween, and liquid crystal material sealed-in between the electrodes. The spacer powder is coated with a hot melt adhesive, such as vinyl acetate adhesive or polyethylene adhesive, by adding an antiflocculating agent, such as polyethylene wax, and spacer powder, such as aluminum oxide, to suspension of the hot melt adhesive, and then drying the suspension. The resultant powder is fixed to the sheets by the adhesive.
    Type: Grant
    Filed: July 16, 1984
    Date of Patent: July 7, 1987
    Assignee: Alps Electric Co., Ltd.
    Inventor: Yoshizo Tashiro
  • Patent number: 4477368
    Abstract: A color display liquid crystal composition comprising a nematic liquid crystal having positive dielectric anisotropy, an optically active substance and a dichroic dye mixture consisting of a dichroic reddish purple diazo dye (1,4-naphthylene derivative) and a dichroic red diazo dye (1,4-phenylene derivative). This composition is suitable for use in a guest-host type color liquid crystal display device.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: October 16, 1984
    Assignee: Alps Electric Co., Ltd.
    Inventors: Fumiaki Yamanashi, Yuzo Hayashi, Mitsuru Kano, Yoshiyuki Fujiwara, Yoshizo Tashiro