Patents by Inventor Sakae Duda

Sakae Duda 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).

  • Block polymer, polymer-containing composition containing the same, ink composition and liquid applying method and liquid applying apparatus utilizing the polymer-containing composition
    Publication number: 20060047015
    Abstract: A block polymer comprised of a polyalkenyl ether main chain comprises a first block segment having hydrophobicity; a second block segment having an upper limit hydration temperature exceeding 70° C.; and a third block segment having an ionic property. A polymer-containing composition comprises the block polymer, a solvent or a dispersing medium, and a functional substance. An ink composition comprises the polymer-containing composition wherein the functional substance is colorant. A liquid application method comprises the steps of preparing the polymer-containing composition; and applying the polymer-containing composition to a medium. A liquid application apparatus comprises a liquid application means which makes energy act on the polymer-containing composition to apply the composition; and a drive means which drives the liquid application means. The polymer compound is capable of satisfactorily dispersing a functional substance in a solvent.
    Type: Application
    Filed: June 24, 2004
    Publication date: March 2, 2006
    Applicant: Canon Kabushiki Kaisha
    Inventors: Sakae Duda, Ikuo Nakazawa, Koichi Sato, Ryuji Higashi, Masayuki Ikegami, Keiichiro Tsubaki, Keiko Yamagishi