Patents by Inventor Kunio Ezawa

Kunio Ezawa 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).

  • Test method involving substance-conjugated complement component C1q
    Patent number: 5035995
    Abstract: A substance-conjugated complement component C1q is provided. A substance such as signal emitting substances or cell function regulating substances is conjugated via a sulfur atom to at least one site of the component. The site is not involved in binding immunoglobulins. A marker-labelled complement component C1q is used for measuring a complement-binding antibody, an antigen, a neutralizing antibody or a substance produced internally of and at the surface of a cell or a microorganism by measuring the marker.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: July 30, 1991
    Assignees: Calpis Food Industry Co., Ltd., Fumiaki Taguchi
    Inventors: Fumiaki Taguchi, Isamu Mitsui, Kinichi Hara, Masaro Hayashi, Kunio Ezawa, Kenichi Fukunaga, Jun Kuranari
  • Substance-conjugated complement component C1q
    Patent number: 4882423
    Abstract: A substance-conjugated complement component Clq is provided. A substance such as signal emitting substances or cell function regulating substances is conjugated via a sulfur atom to at least one site of the component. The site is not involved in binding immunoglobulins. A marker-labelled complement component Clq is used for measuring a complement-binding antibody, an antigen, a neutralizing antibody or a substance produced internally of and at the surface of a cell or a microorganism by measuring the marker.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: November 21, 1989
    Assignees: Calpis Food Industry, Fumiaki Taguchi
    Inventors: Fumiaki Taguchi, Isamu Mitsui, Kinichi Hara, Masaro Hayashi, Kunio Ezawa, Kenichi Fukunaga, Jun Kuranari