Patents by Inventor Yashushi Murai

Yashushi Murai 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).

  • Cyclic depsipeptide PF 1022G
    Patent number: 6146853
    Abstract: Known cyclic depsipeptides which are PF 1022F substance and PF 1022H substance, as well as a novel cyclic depsipeptide, PF 1022G substance, are now prepared simultaneously by cultivating a fungal strain capable of producing PF 1022F substance, PF 1022G substance and PF 1022H substance represented by the known PF 1022 strain (deposited under FERM BP-2671) which is a kind of fungus belonging to asporous imperfect fungi (the order Agonomycetales) and is presumable to belong to the genus Xylaria or the genus Rosellinia in the family Xylariaceae.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: November 14, 2000
    Assignee: Meiji Seika Kaisha Ltd.
    Inventors: Makoto Ohyama, Masaaki Takahashi, Yoshiya Shigematsu, Osamu Sakanaka, Yashushi Murai, Katsuharau Iinuma
  • Preparation of cyclic depsipeptide compounds and a novel cyclic depsipeptide
    Patent number: 6043058
    Abstract: Known cyclic depsipeptides which are PE 1022F substance and PF 1022H substance, as well as a novel cyclic depsipeptide, PF 1022G substance, are now prepared simultaneously by cultivating a fungal strain capable of producing PF 1022F substance, PF 1022G substance and PF 1022H substance represented by the known PE 1022 strain (deposited under FERM BP-2671) which is a kind of fungus belonging to asporous imperfect fungi (the order Agonomycetales) and is presumable to belong to the genus Xylaria or the genus Rosellinia in the family Xylariaceae.
    Type: Grant
    Filed: February 5, 1999
    Date of Patent: March 28, 2000
    Assignee: Maiji Seika Kaisha Ltd.
    Inventors: Makoto Ohyama, Masaaki Takahashi, Yoshiya Shigematsu, Osamu Sakanaka, Yashushi Murai, Katsuharau Iinuma