Patents by Inventor Mituo Yamaki

Mituo Yamaki 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).

  • Method for measuring iodine and reaction instrument for specimen pretreatment
    Patent number: 6589796
    Abstract: A iodine-measuring method for determining or detecting iodine concentration in a specimen, comprising a specimen-pretreating step of thermally digesting a specimen together with an oxidizing agent, and a subsequent reaction-measuring step of reacting the resultant with an arsenious acid reagent solution and an ammonium cerium sulfate reagent solution and measuring absorbance in the reaction solution, characterized in that the specimen-pretreating step is performed by heating and cooling treatment under an airtight condition.
    Type: Grant
    Filed: June 2, 2000
    Date of Patent: July 8, 2003
    Assignee: Hitachi Chemical Co., Ltd.
    Inventors: Toshinori Ohashi, Mituo Yamaki, Minoru Irie