Patents by Inventor Hiroshi Sakagami

Hiroshi Sakagami 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).

  • AIDS therapeutic agents comprising polymers formed from cinnamic acid derivatives
    Patent number: 5632980
    Abstract: AIDS therapeutic agents are provided which are less toxic, have a strong anti-AIDS virus activity and comprise as an effective ingredient a dehydrogenation polymer of a cinnamic acid derivative having a phenyl group substituted with at least one hydroxyl group or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: May 27, 1997
    Inventors: Kunio Konno, Hiroshi Sakagami, Yutaka Kawazoe, Naoki Yamamoto
  • Methods of inhibiting HIV replication in vitro using polymers of p-hydroxylated cinnamic acids
    Patent number: 5346695
    Abstract: Polymers of p-hydroxylated cinnamic acids and p-hydroxylated cinnamyl alcohols have potent anti-viral activity in vitro.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: September 13, 1994
    Assignee: Tampa Bay Research Institute
    Inventors: Meihan Nonoyama, Akiko Tanaka, Patrick K. Lai, Kunio Konno, Yutaka Kawazoe, Hiroshi Sakagami
  • Method of extracting a physiological active substance from the husks of pine nuts and anti-contagion medicine made of said extract as principal raw material
    Patent number: 5241091
    Abstract: The method of extracting a physiological active substance in which a granular acid polysaccharide is a principal component is disclosed. The husks of the pine nuts are immersed in an alkali solution to proceed an extraction treatment. The obtained extract is filtered and insoluble substances are separated and then remained solution is concentrated and arranged its degree of pH. Thus physiological active substance in which a granular acid polysaccharide is a principal component is extracted through lyophilization treatment. The anti-contagion medicine in which an acid polysaccharide obtained by the extraction method is a principal component provides with an activation function which by far surpasses an activation function of the polymorphonuclear leukocyte of conventional anti-tumor polysaccharides.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: August 31, 1993
    Assignee: Masazumi Yoshihara
    Inventors: Masazumi Yoshihara, Hiroshi Sakagami
  • Anti-HIV agents
    Patent number: 4985249
    Abstract: Anti-HIV agent containing as active components alkaline water extracts of pine cone and method for producing high molecular weight substance having anti-HIV activity.
    Type: Grant
    Filed: June 22, 1988
    Date of Patent: January 15, 1991
    Inventors: Hiroshi Sakagami, Kunio Konno, Meihan Nonoyama