Patents by Inventor Hotaka Ito

Hotaka Ito 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).

  • Modified polymers containing poly(2-hydroxyethyl(meth)acrylate segment in the molecule
    Patent number: 6294614
    Abstract: Modified polymers containing a poly(2-hydroxyethyl(meth)acrylate) chain as the hydrophilic polymer segment in which a hydrophobic polymer chain or a lipid residue of a sterol is bound to either end of the poly(2-hydroxyethyl(meth)acrylate) chain through a covalent bond or in which the poly(2-hydroxyethyl(meth)acrylate) chain is grafted onto the backbone chain at either end thereof. These modified polymers are excellent in compatibility with liquid or a living body, thus being advantageously usable particularly in medical fields.
    Type: Grant
    Filed: January 27, 1999
    Date of Patent: September 25, 2001
    Assignee: K. K. Vayu
    Inventors: Kazunori Kataoka, Masao Kato, Yukio Nagasaki, Hotaka Ito, Teiji Tsuruta, Yasuhisa Sakurai, Teruo Okano, Ken Suzuki