Patents by Inventor Kazuhiro ihara

Kazuhiro ihara 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).

  • Malonic acid monoesters and process for producing the same
    Publication number: 20050272950
    Abstract: The present invention relates to a compound represented by formula (1) or a salt thereof: wherein R represents a group that is easily removable upon hydrolysis in vivo. This compound is usable in the production of prodrug-type carbapenem antibacterial agents for oral administration. The use of this compound in the process of production of the antibacterial agents can realize enhanced production efficiency and reduced production cost.
    Type: Application
    Filed: October 17, 2003
    Publication date: December 8, 2005
    Applicant: MEIJI SEIKA KAISHA LTD.
    Inventors: Takehiko Sawabe, Kazuhiro ihara, Kunio Atsumi, Keiichi Ajito