Patents by Inventor Masaaki Ishiduka

Masaaki Ishiduka 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).

  • Angiogenesis inhibitors
    Publication number: 20050131061
    Abstract: Compounds represented by formula (I) below; a process for producing the compounds by culturing a microorganism belonging to the genus Aspergillus and isolating the above-mentioned compounds from the culture; an angiogenesis inhibitory agent containing as an active ingredient the compounds; and an Aspergillus sp. F-1491 (FERM BP-8288) strain capable of producing the compounds. In formula (I), R represents a methyl group or an ethyl group, R1 represents a hydrogen atom, a chlorine atom, a hydroxyl group or a methoxy group, R2 represents a hydroxyl group, or R1 and R2 taken together form an epoxy ring structure.
    Type: Application
    Filed: March 6, 2003
    Publication date: June 16, 2005
    Applicants: Mercian Corporation, Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
    Inventors: Hiroyuki Kumagai, Tomohiro Sameshima, Motoko Matsufuji, Naoto Kawamura, Tetsuya Someno, Masaaki Ishiduka, Tomio Takeuchi