Patents by Inventor Mikiya Kitamura

Mikiya Kitamura 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).

  • 1,3-dioxol-2-one derivatives
    Patent number: 4777267
    Abstract: A 1,3-dioxol-2-one derivative represented by the following formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 represent independently a hydrogen atom, a halogen atom, an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, a nitro group, a carboxyl group, salts of the carboxyl group, a sulfo group and salts of the sulfo group, and a process for producing the 1,3-dioxol-2-one derivative. The compound is useful for measuring the activity of arylesterase.
    Type: Grant
    Filed: December 5, 1986
    Date of Patent: October 11, 1988
    Assignee: Kanebo Ltd.
    Inventors: Hiroshi Tanaka, Mikiya Kitamura, Fumio Sakamoto, Masahiro Taguchi, Mikio Sotomura