Patents by Inventor Shinichi Sakemi

Shinichi Sakemi 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).

  • Phthalide compounds and their production process
    Patent number: 5861518
    Abstract: This invention provides processes for producing phthalide compounds which comprise cultivating Phanerochaete avelutina FERM BP-4787 and then isolating phthalide compounds from the fermentation broth.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: January 19, 1999
    Inventors: Koenraad A. Dekker, Yuji Yamauchi, Taisuke Inagaki, Shinichi Sakemi, Nakao Kojima
  • Bis-indole imidazole compounds which are useful antitumor and antimicrobial agents
    Patent number: 4970226
    Abstract: Novel brominated bisindole-imidazole alkaloids have been isolated from marine sponges. These compounds, and derivatives thereof, are useful antimicrobial and antitumor compounds.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: November 13, 1990
    Assignee: Harbor Branch Oceanographic Institution, Inc.
    Inventors: H. Howard Sun, Shinichi Sakemi, Sarath Gunasekera, Yoel Kashman, May Lui, Neal Burres, Peter McCarthy
  • Antiviral, antitumor and antifungal compositions and their methods of use
    Patent number: 4808590
    Abstract: This invention relates to novel compositions which are useful as antitumor, antiviral and antifungal compositions, a process of producing the compositions and a method for inhibiting tumors, viruses and fungi utilizing the composition. More particularly, the novel compositions are derived from marine sponge Theonella sp.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: February 28, 1989
    Assignee: Harbor Branch Oceanographic Institution, Inc.
    Inventors: Tatsuo Higa, Shinichi Sakemi, Sue S. Cross
  • Antiviral compositions
    Patent number: 4801606
    Abstract: This invention relates to novel compositions which are useful as antitumor, antiviral and antifungal compositions, a process of producing the compositions and a method for inhibiting tumors, viruses and fungi utilizing the composition. More particularly, the novel compositions are derived from marine sponge Theonella sp.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: January 31, 1989
    Assignee: Harbor Branch Oceanographic Institution Inc.
    Inventors: Tatsuo Higa, Shinichi Sakemi, Sue S. Cross
  • Guaiazulene derivatives and their methods of use
    Patent number: 4755529
    Abstract: This invention relates to novel guaiazulene compositions which are useful as antitumor, immunomodulatory and antifungal compositions and a process of producing guaiazulene compositions and a method for immunomodulation and inhibiting tumors and fungi utilizing guaiazulene compositions. More particularly, the compositions are derived from marine gorgorian Acalycigorgia, sp.
    Type: Grant
    Filed: June 26, 1986
    Date of Patent: July 5, 1988
    Assignee: Harbor Branch Oceanographic Institution Inc.
    Inventors: Tatsuo Higa, Shinichi Sakemi
  • Antitumor cyclic peroxides
    Patent number: 4731377
    Abstract: This invention relates to cyclic peroxide compositions, a process of producing the compositioning and a method for inhibiting tumors utilizing the compositions. More particularly, the compositions are cyclic peroxides which are derived from marine organisms, i.e., the marine sponge Plakortis lita.
    Type: Grant
    Filed: January 31, 1986
    Date of Patent: March 15, 1988
    Assignee: Harbor Branch Oceanographic Institute, Inc.
    Inventors: Tatsuo Higa, Carsten Christophersen, Shinichi Sakemi