Patents by Inventor Isamu Mitsui

Isamu Mitsui 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
  • Antimicrobial substance C-3603 and process for preparing the same
    Patent number: 4209508
    Abstract: Novel antimicrobial substance C-3603 was obtained from the culture of Streptococcus mutans C-3603, FERM-P No. 4128, ATCC No. 31383. The novel antimicrobial substance C-3603 shows a high antimicrobial activity against a variety of gram-positive bacteria, particularly cariogenic bacteria in the oral cavity and it is expected for the utilization to prevent oral infectious diseases, particularly dental caries.
    Type: Grant
    Filed: April 28, 1978
    Date of Patent: June 24, 1980
    Assignee: The Calpis Food Industry Co., Ltd.
    Inventors: Isamu Mitsui, Takefumi Iwanami, Kazuo Joko, Tsutomu Watanabe, Motozumi Yamadaki, Yukinori Mori
  • Method of manufacturing a beverage containing fruit ingredients
    Patent number: 4061792
    Abstract: A beverage is made by removing pectic substances and tannin from fruit juice or fruit extract by addition of an acidified solution of protein having a pH not exceeding 3.7. The pectic substances and tannin interact with the acidified solution of protein and are removed as coagulum. If desired, the fruit juice or extract may be pretreated with pectinase. The resultant fruit juice or fruit extract may be mixed with an acidified solution of protein such as acidified skim milk without further formation of coagulums so that a stable beverage is obtained.The proteins used for removing pectic substances and tannin are preferably derived from milk but vegetable proteins may also be used.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: December 6, 1977
    Assignee: Calpis Shokuhin Kogyo Kabushiki Kaisha
    Inventors: Kaoru Inagami, Isamu Mitsui, Chomatsu Nakamura, Toru Nozaka