Patents Represented by Law Firm Burges, Ryan and Wayne
  • 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