Patents by Inventor Masaaki Sihizuka

Masaaki Sihizuka 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).

  • Osteoclast differentiation inhibitors
    Publication number: 20050124050
    Abstract: A compound represented by formula (I); a process for producing a compound (substance F-1490) of formula (I), wherein X represents —O— and R represents a hydroxyl group, by using a microorganism belonging to the genus Cunninghamella; and a Cunninghamella sp. F-1490 strain (FERM BP-8287) capable of producing the substance F-1490; and an osteoclast differentiation inhibitory agent containing as an active ingredient the compound represented by formula (I): wherein X represents —O— or —CH2—, and R represents a hydroxyl group when X represents —O—, or a hydrogen atom when X represents —CH2—.
    Type: Application
    Filed: March 6, 2003
    Publication date: June 9, 2005
    Applicant: Mercian Corporation and Zaidan Hojin Biseibutsu Kagaku Kenkyu Kai
    Inventors: Hiroyuki Kumagai, Tomohiro Sameshima, Motoko Matsufuji, Naoto Kawamura, Kunio Isshiki, Hiroyuki Inoue, Tetsuya Someno, Masaaki Sihizuka, Tomio Takeuchi