Patents by Inventor Shigeru IKAWA

Shigeru IKAWA 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).

  • Polymer, antimicrobial agent, disinfectant, antimicrobial material, disinfectant material, antimicrobial method, and disinfecting method
    Patent number: 11384172
    Abstract: Provided is a polymer having antimicrobial and disinfecting properties against a wide range of kinds of germs. A polymer, including: a polymer chain having a repeating unit represented by the following formula (1); and a partial structure (excluding the polymer chain) derived from a compound containing a group represented by —NH—. [In formula (1), R1 represents a hydrogen atom or a methyl group, Z represents a group forming an organic ammonium salt, —NR5R6 (where R5 and R6 each independently represent a hydrogen atom, or a substituted or unsubstituted hydrocarbon group), or a substituted or unsubstituted nitrogen-containing heterocyclic group, and X represents a single bond, or a divalent linking group.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 12, 2022
    Assignees: JSR CORPORATION, JAPAN AS REPRESENTED BY DIRECTOR-GENERAL OF NATIONAL INSTITUTE of INFECTIOUS DISEASES, JSR LIFE SCIENCES CORPORATION
    Inventors: Hidenori Naruse, Atsushi Itou, Shigeru Ikawa, Tsutomu Shimokawa, Masato Suzuki, Mari Matsui, Satowa Suzuki, Keigo Shibayama, Kazuhiro Ikkyuu
  • POLYMER, ANTIMICROBIAL AGENT, DISINFECTANT, ANTIMICROBIAL MATERIAL, DISINFECTANT MATERIAL, ANTIMICROBIAL METHOD, AND DISINFECTING METHOD
    Publication number: 20180360033
    Abstract: Provided is a polymer having antimicrobial and disinfecting properties against a wide range of kinds of germs. A polymer, including: a polymer chain having a repeating unit represented by the following formula (1); and a partial structure (excluding the polymer chain) derived from a compound containing a group represented by —NH—. [In formula (1), R1 represents a hydrogen atom or a methyl group, Z represents a group forming an organic ammonium salt, —NR5R6 (where R5 and R6 each independently represent a hydrogen atom, or a substituted or unsubstituted hydrocarbon group), or a substituted or unsubstituted nitrogen-containing heterocyclic group, and X represents a single bond, or a divalent linking group.
    Type: Application
    Filed: December 13, 2016
    Publication date: December 20, 2018
    Applicants: JSR CORPORATION, JAPAN AS REPRESENTED BY DIRECTOR-GENERAL OF NATIONAL INSTITUTE OF INFECTIOUS DISEASES, JSR LIFE SCIENCES CORPORATION
    Inventors: Hidenori NARUSE, Atsushi ITOU, Shigeru IKAWA, Tsutomu SHIMOKAWA, Masato SUZUKI, Mari MATSUI, Satowa SUZUKI, Keigo SHIBAYAMA, Kazuhiro IKKYUU