Patents by Inventor Fumio Imamoto

Fumio Imamoto 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).

  • Method for preparing mutant genes
    Patent number: 5928866
    Abstract: This invention provides A method for preparing mutant genes, which comprises the steps of constructing a recombinant plasmid DNA by inserting a gene fragment into a plasmid DNA having a unidirectional origin, introducing the recombinant plasmid DNA into host cell lacking DNA error-correcting function to transform the host cell, and culturing the transformant cell in a condition that any mutations of the inserted gene is detectable. According to the present invention, diverse mutant genes can be prepared in a short period of time.
    Type: Grant
    Filed: December 15, 1995
    Date of Patent: July 27, 1999
    Assignee: Research Development Corporation of Japan
    Inventors: Fumio Imamoto, Yoshizumi Ishino, Mitsuru Furusawa, Hirofumi Doi