Patents by Inventor David S. Fukuda

David S. Fukuda 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).

  • Derivatives of S31794/F-1 nucleus
    Patent number: 4287120
    Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is C.sub.6 -C.sub.24 alkyl or C.sub.6 -C.sub.24 alkenyl, have antifungal activity.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: September 1, 1981
    Assignee: Eli Lilly and Company
    Inventors: Bernard J. Abbott, David S. Fukuda
  • Microbiological modification of antibiotic A23187 esters
    Patent number: 4287302
    Abstract: Cultivation of Streptomyces chartreusis NRRL 11407 in the presence of antibiotic A23187 methyl ester produces 16-hydroxy A23187 methyl ester, 16-hydroxy-N-demethyl A23187 methyl ester, and N-demethyl A23187 methyl ester. Hydrolysis of the products affords the corresponding free acids which form dimeric complexes with divalent cations.
    Type: Grant
    Filed: July 30, 1980
    Date of Patent: September 1, 1981
    Assignee: Eli Lilly and Company
    Inventors: Bernard J. Abbott, David S. Fukuda
  • Microbiological modification of antibiotic A23187 esters
    Patent number: 4247703
    Abstract: Cultivation of Streptomyces chartreusis NRRL 11407 in the presence of antibiotic A23187 methyl ester produces 16-hydroxy A23187 methyl ester, 16-hydroxy-N-demethyl A23187 methyl ester, and N-demethyl A23187 methyl ester. Hydrolysis of the products affords the corresponding free acids which form dimeric complexes with divalent cations.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: January 27, 1981
    Assignee: Eli Lilly and Company
    Inventors: Bernard J. Abbott, David S. Fukuda
  • Novel 3-(oxygenated alkyl)-1,9-dihydroxy and 1-hydroxy-9-keto dibenzo[b,d]p y
    Patent number: 4104282
    Abstract: 1-Hydroxy-9-keto-3-alkyl-dibenzo[b,d]pyrans or 1,9-dihydroxy-3-alkyl-dibenzo[b,d]pyrans are oxygenated on the penultimate carbon of the alkyl side chain by fermentation with a strain of the micro-organism Bacillus cereus.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: August 1, 1978
    Assignee: Eli Lilly and Company
    Inventors: David S. Fukuda, Bernard J. Abbott, Robert A. Archer
  • Novel 3-(oxygenated alkyl)-1,9-dihydroxy and 1-hydroxy-9-keto dibenzo[b,d]p y
    Patent number: 4064009
    Abstract: 1-Hydroxy-9-keto-3-alkyl-dibenzo[b,d]pyrans or 1,9-dihydroxy-3-alkyl-dibenzo[b,d]pyrans are oxygenated on the penultimate carbon of the alkyl side chain by fermentation with a strain of the micro-organism Bacillus cereus.
    Type: Grant
    Filed: June 9, 1976
    Date of Patent: December 20, 1977
    Assignee: Eli Lilly and Company
    Inventors: David S. Fukuda, Bernard J. Abbott, Robert A. Archer