Patents by Inventor Shunichi Dousako

Shunichi Dousako 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).

  • Periodontal disease preventive and ameliorative agent
    Patent number: 6544498
    Abstract: A periodontal disease preventive and ameliorative agent with milk-derived basic protein as its effective ingredient, which protein is obtained by contacting a milk or milk-derived ingredient with cation-exchange resin, and then eluting a fraction adsorbed by the resin using an elution solution and which protein has an isoelectric point within a range of 7.5˜11, and food/drink and a medicament such as toothpaste and gargling agents, which contain this periodontal disease preventive and ameliorative agent.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: April 8, 2003
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Yukihiro Takada, Seiichirou Aoe, Atsusi Serizawa, Toshiaki Suguri, Shunichi Dousako
  • Method of making a milk calcium composition
    Patent number: 6350481
    Abstract: Milk is concentrated by filtering with an ultrafiltration (UF) membrane, after which casein is removed by acidification and the resulting liquid is concentrated and/or dried to produce a milk calcium composition having the following components' ratios (1) and (2): (1) −1.3≦log{(% by weight calcium in composition)/(% by weight protein in composition)}≦0.26; (2) 0.9≦log{(% by weight calcium in composition)/(% by weight sodium in composition)}.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: February 26, 2002
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Yasuji Kawachi, Toshihiro Kawama, Masanori Kotani, Kaoru Sato, Akira Tomizawa, Shunichi Dousako
  • Method for separating and purifying lactoferrin from milk by use of sulfuric ester
    Patent number: 4997914
    Abstract: A method for separating and purifying lactoferrin from milk is disclosed, which method comprises the steps of bringing raw milk containing lactoferrin into contact with a sulfuric ester of a crosslinked polysaccharide so that lactoferrin may be adsorbed by the sulfuric ester, and then eluting the adsorbed lactoferrin. The elution of the adsorbed lactoferrin is preferably conducted by the use of a buffer solution containing a 0.4-1.5 M aqueous sodium chloride solution.
    Type: Grant
    Filed: November 9, 1988
    Date of Patent: March 5, 1991
    Assignee: Snow Brand Milk Products Co., Ltd.
    Inventors: Hiroshi Kawakami, Morimasa Tanimoto, Shunichi Dousako