Patents by Inventor Hirohiko Tokitoh

Hirohiko Tokitoh 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: 4332472
    Abstract: An apparatus for automatic cataphoresis comprises means for feeding a blood serum bearing film; a cutter for cutting the film to a given length; means for supplying a buffer solution for wetting the film with a buffer solution; a blood serum applicator including a serum application member, a serum dish assembly, an abutment, a rinsing vessel, a drip mechanism and means for carrying the film; a cataphoresis compartment for forming fractionated patterns of the serum applied to the film; dyeing, decolorizing and drying stations for dyeing, decolorizing and drying the serum bearing film as it is delivered from the cataphoresis compartment; and a densitometer including a vessel of a clearing liquid, a light source and a detector for effecting a colorimetric determination of the serum specimen. In this manner, a determination of a blood serum is automatically achieved by the cataphoretic process.
    Type: Grant
    Filed: August 23, 1979
    Date of Patent: June 1, 1982
    Assignee: Olympus Optical Company Ltd.
    Inventors: Yutaka Kato, Hirohiko Tokitoh, Tomohiro Kitahara, Hiromi Ito
  • Patent number: 4204767
    Abstract: An apparatus for automatic cataphoresis comprises means for feeding a blood serum bearing film; a cutter for cutting the film to a given length; means for supplying a buffer solution for wetting the film with a buffer solution; a blood serum applicator including a serum application member, a serum dish assembly, an abutment, a rinsing vessel, a drip mechanism and means for carrying the film; a cataphoresis compartment for forming fractionated patterns of the serum applied to the film; dyeing, decolorizing and drying stations for dyeing, decolorizing and drying the serum bearing film as it is delivered from the cataphoresis compartment; and a densitometer including a vessel of a clearing liquid, a light source and a detector for effecting a colorimetric determination of the serum specimen. In this manner, a determination of a blood serum is automatically achieved by the cataphoretic process.
    Type: Grant
    Filed: September 1, 1977
    Date of Patent: May 27, 1980
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yutaka Kato, Hirohiko Tokitoh, Tomohiro Kitahara, Hiromi Ito
  • Patent number: 3999505
    Abstract: An apparatus for automatic application of blood serum comprises an applicator, a rinsing unit and a drip both associated with the applicator, means for conveying a blood serum bearing film while maintaining it in opposing relationship with the applicator, and means for supplying a buffer solution for wetting the film with a buffer solution prior to the application of a blood serum thereto. Blood serum is automaticaly applied to the film which is previously wetted with the buffer solution in an automatic manner.
    Type: Grant
    Filed: June 3, 1975
    Date of Patent: December 28, 1976
    Assignee: Olympus Optical Co., Ltd.
    Inventors: Yutaka Kato, Teruo Ouchi, Hirohiko Tokitoh