Patents by Inventor Kotaro Suto

Kotaro Suto 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).

  • Nitro group-containing ether compound and method for producing same
    Patent number: 8524940
    Abstract: It is possible to produce oseltamivir safely and stably in large quantities by using as a starting material tartaric acid, mannitol or arabinose, via dihydroxyhexenoic acid ester of the formula (4c): (wherein R1, R2 and R6 are same or different and are each alkyl, aryl, substituted aryl, aralkyl, substituted aralkyl or aromatic heterocyclic group, and R1 and R2 are not methyl simultaneously).
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: September 3, 2013
    Assignee: National University Corporation Okayama University
    Inventors: Teruhiko Ishikawa, Seiki Saito, Takayuki Kudoh, Kotaro Suto, Hironori Nishiuchi, Makoto Okada, Masatoshi Taniguchi
  • NITRO GROUP-CONTAINING ETHER COMPOUND AND METHOD FOR PRODUCING SAME
    Publication number: 20120130092
    Abstract: It is possible to produce oseltamivir safely and stably in large quantities by using as a starting material tartaric acid, mannitol or arabinose, via dihydroxyhexenoic acid ester of the formula (4c).
    Type: Application
    Filed: December 6, 2011
    Publication date: May 24, 2012
    Inventors: Teruhiko Ishikawa, Seiki Saito, Takayuki Kudoh, Kotaro Suto, Hironori Nishiuchi, Makoto Okada, Masatoshi Taniguchi