Patents by Inventor Shigeo Yoshiie

Shigeo Yoshiie 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).

  • Optically active 3-halo carbacephems
    Patent number: 4734494
    Abstract: Optically active cephalosporin analogs are produced by optically selective deacylation of an optically inactive acylated analog. The compounds are useful as intermediates in the preparation of optically active acylated antimicrobial agents.
    Type: Grant
    Filed: November 6, 1986
    Date of Patent: March 29, 1988
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Tadashi Hirata, Yukio Hashimoto, Ikuo Matsukuma, Shigeo Yoshiie, Seigo Takasawa
  • 3-position halogenated cephalosporin analogs and pharmaceutical compositions
    Patent number: 4708956
    Abstract: Novel cephalosporin analogs are disclosed which have antibacterial activity. Methods for producing the compounds are also disclosed.
    Type: Grant
    Filed: August 18, 1986
    Date of Patent: November 24, 1987
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Tadashi Hirata, Ikuo Matsukuma, Shigeo Yoshiie, Kiyoshi Sato, Yoichi Ohashi
  • Process for producing optically active cephalosporin analogs
    Patent number: 4335211
    Abstract: Disclosed are optically active acylated cephalosporin analogs which are useful as antibacterial agents and methods for preparing such compounds.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: June 15, 1982
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Yukio Hashimoto, Seigo Takasawa, Tadashi Hirata, Ikuo Matsukuma, Shigeo Yoshiie
  • Process of producing optically active cephalosporin analogs by enzyme selective deacylation
    Patent number: 4302541
    Abstract: Optically active cephalosporin analogs are produced by optically selective deacylation of an optically inactive acylated analog. The compounds are useful as intermediates in the preparation of optically active acylated antimicrobial agents.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: November 24, 1981
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Tadashi Hirata, Yukio Hashimoto, Ikuo Matsukuma, Shigeo Yoshiie, Seigo Takasawa
  • Derivatives of fortimicin A
    Patent number: 4237272
    Abstract: Semisynthetic antibacterial compounds are produced by chemically modifying the antibacterial compound fortimicin A.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: December 2, 1980
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Kenichi Mochida, Moriyuki Sato, Shigeo Yoshiie, Yasuki Mori
  • Derivatives of fortimicin A
    Patent number: 4237269
    Abstract: Semisynthetic antibacterial compounds are produced by chemically modifying the antibacterial compound fortimicin A.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: December 2, 1980
    Assignee: Abbott Laboratories
    Inventors: Kenichi Mochida, Moriyuki Sato, Shigeo Yoshiie, Yasuki Mori
  • Novel derivatives of fortimicin B and process for preparing same
    Patent number: 4226980
    Abstract: Semisynthetic antibacterial compounds are produced by chemically modifying the antibacterial compound fortimicin B.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: October 7, 1980
    Assignee: Abbott Laboratories
    Inventors: Moriyuki Sato, Kenichi Mochida, Shigeo Yoshiie, Yasuki Mori