Patents by Inventor Narumi YOKOTE

Narumi YOKOTE 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).

  • Publication number: 20210102019
    Abstract: Disclosed is a hydrophilic copolymer including more than 50% by mol of a structural unit derived from a polymerizable monomer (A) from which a homopolymer having a lower critical solution temperature (LCST) is formed, a structural unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group (?SO3H), a sulfate group (?OSO3H), a sulfurous acid group (?OSO2H), and a group of salts thereof, and a structural unit derived from a polymerizable monomer (C) having a photoreactive group. Also disclosed is a medical device including the hydrophilic copolymer. The medical device exhibits high sliding property until it reaches a target lesion, and low sliding property after reaching the target lesion. Methods of making and using the hydrophilic copolymer and medical device are also described.
    Type: Application
    Filed: December 18, 2020
    Publication date: April 8, 2021
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Narumi YOKOTE, Masanori KURAMOTO
  • Publication number: 20200376171
    Abstract: Disclosed is a medical device exhibiting superior lubricating property and durability (lubrication retaining property), the medical device comprising a substrate layer, an adhesive layer formed on at least a portion of the substrate layer, comprising a hydrophilic copolymer comprising a structural unit derived from a polymerizable monomer (A) having a sulfobetaine structure, a structural unit derived from a polymerizable monomer (B) having at least one group selected from the group consisting of a sulfonic acid group, sulfuric acid group, sulfurous acid group, and salts thereof, and a structural unit derived from a polymerizable monomer (C) having a photoreactive group, and a surface lubricious layer formed on at least a portion of the adhesive layer, comprising a hydrophilic polymer dissolvable in a solvent capable of dissolving or swelling the hydrophilic copolymer.
    Type: Application
    Filed: August 18, 2020
    Publication date: December 3, 2020
    Applicant: TERUMO KABUSHIKI KAISHA
    Inventors: Masanori KURAMOTO, Narumi YOKOTE