Patents by Inventor Yuji Hongu

Yuji Hongu 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).

  • Amphiphilic polymers and method of making said polymers
    Patent number: 4888389
    Abstract: Amphiphilic polymers having poly A segments of wide molecular weights, viz., about 2,000 to 50,000, and poly B segments of wide molecular weight of a few hundred to 13,000 or more can be made by reacting without regard to sequence, isocyanate with either a poly A segment or a poly B segment to give an adduct containing free NCO groups on each segment and then react the adduct with the other segment.
    Type: Grant
    Filed: February 5, 1985
    Date of Patent: December 19, 1989
    Assignee: University of Akron
    Inventors: Joseph P. Kennedy, Yuji Hongu