Patents by Inventor Maki Ohishi

Maki Ohishi 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 cyclodepsipeptide PF 1022
    Patent number: 5747448
    Abstract: Novel PF 1022 derivatives--cyclodepsipeptides represented by the below-described formula (I)--and acid addition salts thereof, which have been synthesized according to the present invention, have anthelmintic activities against various parasitic worms which are parasitic on human bodies, domestic animals and pet animals. They are therefore useful as anthelmintics for the prevention or treatment of parasitic infections. ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, Q, X, Y and Z have been defined herein.
    Type: Grant
    Filed: September 8, 1995
    Date of Patent: May 5, 1998
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Makoto Ohyama, Maki Ohishi, Yumiko Okada, Masao Koyama, Shinjiro Sumi, Yasushi Murai, Masayuki Takagi, Tadaaki Okada, Osamu Sakanaka, Toshio Yoneta, Katsuharu Iinuma, Seiji Shibahara