Patents by Inventor Yoshitada Saito

Yoshitada Saito 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).

  • Standard blood filter paper for use in diagnosis of histidinemia
    Patent number: 4393134
    Abstract: A standard blood filter paper for use in diagnosis of histidinemia, comprising a piece of filter paper, and a blood material infiltrated in the above filter paper containing a known concentration of histidine and at least one salt selected from the group consisting of a dithionite, a disulfite and a bisulfite. The standard blood filter paper can be preserved for a long term at -20.degree. C.
    Type: Grant
    Filed: September 27, 1982
    Date of Patent: July 12, 1983
    Assignee: Fujizoki Pharmaceutical Co., Ltd.
    Inventors: Akira Yano, Yoshitada Saito, Yasushi Kasahara
  • Reference blood filter paper for measuring the concentration of methionine in the blood
    Patent number: 4367286
    Abstract: A reference blood filter paper for measuring the concentration of methionine in the blood, comprising a piece of blood filter paper, a blood material infiltered in the blood filter paper containing a known concentration of methionine and at least one water-soluble, sulfur-containing antioxidant represented by general formula: ##STR1## where n=1 or 2.
    Type: Grant
    Filed: September 10, 1981
    Date of Patent: January 4, 1983
    Assignee: Fujizoki Pharmaceutical Co., Ltd.
    Inventors: Yoshitada Saito, Akira Yano, Yasushi Kasahara