Patents by Inventor Kazuyoshi Jomon

Kazuyoshi Jomon 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).

  • Production of antibiotics WS-3442 A, B, C, D and E, and their acyl derivatives
    Patent number: 4283492
    Abstract: Production of antibiotic WS-3442 A, B, C, D and E, and their acyl derivatives thereof, the production of antibiotic WS-3442 A, B, C, D and E being a new method by culturing a new species of Streptomyces and their acyl derivatives of said antibiotics being prepared by acylating said antibiotics with an acylating agent. The acyl derivative of antibiotic WS-3442 A, B, C, D and E has antimicrobiological activity and is also useful for intermediate for preparing Cephalosporin derivatives having antimicrobiological activity.
    Type: Grant
    Filed: June 13, 1978
    Date of Patent: August 11, 1981
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Hiroshi Imanaka, Junzi Hosoda, Kazuyoshi Jomon, Heiichi Sakai, Ikuo Ueda, Daizou Morino
  • Process for the purification of FR-1923 substance
    Patent number: 4128546
    Abstract: Purification of Fr-1923 antibiotic substance by treatment with a macroporous non-ionic adsorption resin such as styrene-divinyl benzene copolymer or acrylic ester polymer.
    Type: Grant
    Filed: June 10, 1976
    Date of Patent: December 5, 1978
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaru Kurita, Kazuyoshi Jomon, Tadaaki Komori, Isami Nakatani, Masahiro Tsuji
  • Process for the purification of bicyclomycin
    Patent number: 4018772
    Abstract: A process for the purification of bicyclomycin by treating a solution thereof with a macroporous nonionic adsorption resin.
    Type: Grant
    Filed: January 17, 1975
    Date of Patent: April 19, 1977
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Masaru Kurita, Kazuyoshi Jomon, Tadaaki Komori, Isami Nakatani