Patents by Inventor Akiko Negishi

Akiko Negishi 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).

  • Silver staining technique and kit
    Patent number: 5064768
    Abstract: An improved silver staining technique is disclosd for the detection of a biocomponent contained in a support medium. The technique includes fixing the support medium with a fixing agent, pretreating the thus-fixed support medium with a sensitizer, treating the resultant support medium with a silver staining solution and then developing the thus-treated support medium with a reducing agent. In one aspect of the invention, thiourea is incorporated in either one or both of the fixing agent and sensitizer. In another aspect of the invention, thiosulfate is contained in the reducing agent. According to the invention, improved stainability and contrast are obtained. Also disclosed is a silver staining kit.
    Type: Grant
    Filed: September 12, 1989
    Date of Patent: November 12, 1991
    Assignee: Daiichi Pure Chemicals Co., Ltd.
    Inventors: Nobuyoshi Ebata, Yuko Tanaka, Akiko Negishi