Patents by Inventor Asuka Kagaya

Asuka Kagaya 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).

  • Novel NAD(P)H oxidase
    Patent number: 4954445
    Abstract: NAD(P)H oxidase is disclosed having the following enzymological properties:(1) ActionIt oxidizes NADH or NADPH in the presence of oxygen to form NAD or NAD and hydrogen peroxide.NAD(P)H+H.sup.+ +O.sub.2 .fwdarw.NAD(P).sup.+ +H.sub.2 O.sub.2(2) Substrate specificityIt acts upon NADH and NADPH.(3) Optimum pHIts optimum pH lies in the range of about 9 to 10.Also disclosed is a process for producing the NAD(P)H oxidase and a method for determining the quantity of substrate or enzyme activity in a sample solution by utilizing a reaction system forming NADH or NADPH.
    Type: Grant
    Filed: August 11, 1987
    Date of Patent: September 4, 1990
    Assignee: Takara Shuzo Co., Ltd.
    Inventors: Yoshio Yoshihama, Asuka Kagaya, Susumu Matsui, Akira Obayashi