Patents by Inventor Shuichi ISHIGURE

Shuichi ISHIGURE 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).

  • Dispersant, dispersion composition, and fibrous sheet
    Patent number: 10894239
    Abstract: The present invention aims to provide a dispersant and a dispersion composition that exhibit high dispersing ability for nano-carbons such as, in particular, CNTs. The dispersant according to the present invention includes a polyalkylene oxide having a structural unit of the following chemical formula (1). In the chemical formula (1), L1 and L2 are each a straight-chain alkylene group that may have a substituent, Z is a linking group that links L1 and Ar, or alternatively, Z may not be present and L1 and Ar may be linked directly to each other, and Ar is represented by the following chemical formula (1a), (1b), or (1c).
    Type: Grant
    Filed: August 31, 2015
    Date of Patent: January 19, 2021
    Assignee: MEISEI CHEMICAL WORKS, LTD.
    Inventors: Shuichi Ishigure, Harutaka Naruse
  • DISPERSANT, DISPERSION COMPOSITION, AND FIBROUS SHEET
    Publication number: 20170080397
    Abstract: The present invention aims to provide a dispersant and a dispersion composition that exhibit high dispersing ability for nano-carbons such as, in particular, CNTs. The dispersant according to the present invention includes a polyalkylene oxide having a structural unit of the following chemical formula (1). In the chemical formula (1), L1 and L2 are each a straight-chain alkylene group that may have a substituent, Z is a linking group that links L1 and Ar, or alternatively, Z may not be present and L1 and Ar may be linked directly to each other, and Ar is represented by the following chemical formula (1a), (1b), or (1c).
    Type: Application
    Filed: August 31, 2015
    Publication date: March 23, 2017
    Inventors: Shuichi ISHIGURE, Harutaka NARUSE