Patents by Inventor Satoshi Horii

Satoshi Horii 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).

  • Deoxyaminoglycoside antibiotic derivatives
    Patent number: 4065615
    Abstract: A new deoxystreptamine-containing aminoglycoside antibiotic derivative in which all the amino groups other than the amino group at the 1-position of the deoxystreptamine moiety are formylated is obtained in a high yield by treating a deoxystreptamine-containing aminoglycoside antibiotic derivative in which all the amino groups are formylated with a basic substance. The new derivatives are very important for production of 1-N-modified deoxystreptamine-containing aminoglycoside antibiotics.
    Type: Grant
    Filed: July 10, 1974
    Date of Patent: December 27, 1977
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Satoshi Horii, Yukihiko Kameda, Nariakira Mizokami
  • Validamycin C, D, E and F antibiotics
    Patent number: 4011391
    Abstract: Novel antibiotics, termed validamycins C, D, E and F, and acid salts thereof, are prepared by cultivating a validamycin-producing strain of microorganism of the genus Streptomyces, and optionally converting the free base to its acid salt.
    Type: Grant
    Filed: April 18, 1972
    Date of Patent: March 8, 1977
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Satoshi Horii, Yukihiko Kameda, Takashi Iwasa, Hiroichi Yamamoto
  • Process for the preparation of xylostasin
    Patent number: 3953293
    Abstract: A novel aminoglycoside antibiotic, xylostasin, of the nomenclature O-.beta.-D-xylofuranosyl-(1.fwdarw.5)-O-[.alpha.-2,6-diamino-2,6-dideoxy-D -glucopyranosyl-(1.fwdarw.4)]-2-deoxystreptamine and its pharmaceutically acceptable acid salts which are effective against infections with bacteria, and a process for producing the antibiotic by cultivating a strain belonging to the genus Bacillus which is capable of producing the antibiotic.
    Type: Grant
    Filed: July 31, 1974
    Date of Patent: April 27, 1976
    Assignee: Takeda Chemical Industries, Ltd.
    Inventors: Satoshi Horii, Ikuo Nogami, Toru Hasegawa, Masahiko Yoneda