Patents by Inventor Michiyo Minami

Michiyo Minami 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).

  • Glucose dehydrogenase from pseudomonas
    Patent number: 5298411
    Abstract: A substantially purified glucose dehydrogenase is disclosed. The enzyme has activity at a temperature of from about 30.degree. C. to about 65.degree. C. at a pH of from about pH 6 to about pH 10 and has an optimum activity at a temperature from about 50.degree. C. to about 60.degree. C. at a pH of from about 8.5 to about 9.0. The enzyme is further characterized by retaining at least 90% residual activity after treatment at 50.degree. C. for 15 minutes, being NAD or NADP dependent, having a molecular weight of about 101,000 daltons as determined by gel filtration using TSK gel, having an isoelectric point of about 4.5 by ampholyte isoelectric focusing, and having a specificity for at least .beta.-D-glucose and 2-deoxyglucose. The preferred source of the enzyme is Pseudomonas sp. FH1227.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: March 29, 1994
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Atsushi Sogabe, Michiyo Minami, Yukihiro Sogabe, Shigenori Emi