Patents by Inventor Kazuki Isogai

Kazuki Isogai 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: 20210328011
    Abstract: A carbon nanotube composite is described that can be accurately applied to a desired position by inkjet and a dispersion liquid using the same, where a main object is a carbon nanotube composite in which a conjugated polymer is attached to at least a part of the surface of a carbon nanotube, the conjugated polymer having a side chain represented by general formula (1): wherein R, X and A are defined as described.
    Type: Application
    Filed: September 17, 2019
    Publication date: October 21, 2021
    Applicant: Toray Industries, Inc.
    Inventors: Kazuki Isogai, Seiichiro Murase, Ryuichi Tanaka, Hidekazu Nishino
  • Patent number: 11002705
    Abstract: The present invention is to provide a semiconductor element achieving a high-level detection sensitivity when utilized as a sensor. The present invention relates to a semiconductor element including an organic film, a first electrode, a second electrode, and a semiconductor layer, in which the first electrode, the second electrode and the semiconductor layer are formed on the organic film, the semiconductor layer is arranged between the first electrode and the second electrode, the semiconductor layer contains a carbon nanotube, and the organic film has a water contact angle of 5° or more and 50° or less.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: May 11, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kazuki Isogai, Seiichiro Murase, Hiroji Shimizu
  • Publication number: 20200035925
    Abstract: A problem addressed by the present invention is to provide a semiconductor device that is free from deterioration over time, is stable, and has n-type semiconductor characteristics. A main object of the present invention is to provide a semiconductor device that is characterized by including: a substrate; a source electrode, a drain electrode, and a gate electrode; a semiconductor layer in contact with the source electrode and the drain electrode; a gate insulating layer insulating the semiconductor layer from the gate electrode; and a second insulating layer in contact with the semiconductor layer on the opposite side of the semiconductor layer from the gate insulating layer; wherein the semiconductor layer contains a carbon nanotube; wherein the second insulating layer contains an electron-donating material having one or more selected from a nitrogen atom and a phosphorus atom; and wherein the second insulating layer has an oxygen permeability of 4.0 cc/(m2·24 h·atm) or less.
    Type: Application
    Filed: February 28, 2018
    Publication date: January 30, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kazuki ISOGAI, Seiichiro MURASE, Daisuke SAKII
  • Publication number: 20190101507
    Abstract: A semiconductor element including a substrate, a first electrode, a second electrode, and a semiconductor layer disposed between the first electrode and the second electrode, wherein the semiconductor layer contains at least one selected from carbon nanotubes and graphene, and a relationship between a channel length LC and a channel width WC of the semiconductor element is 0.01?WC/LC?0.8. A semiconductor element having excellent switching characteristics and high detection sensitivity when used as a sensor is provided.
    Type: Application
    Filed: April 12, 2017
    Publication date: April 4, 2019
    Applicant: TORAY Industries, Inc.
    Inventors: Kazuki ISOGAI, Seiichiro MURASE, Kazumasa NAGAO
  • Publication number: 20180224392
    Abstract: The present invention is to provide a semiconductor element achieving a high-level detection sensitivity when utilized as a sensor. The present invention relates to a semiconductor element including an organic film, a first electrode, a second electrode, and a semiconductor layer, in which the first electrode, the second electrode and the semiconductor layer are formed on the organic film, the semiconductor layer is arranged between the first electrode and the second electrode, the semiconductor layer contains a carbon nanotube, and the organic film has a water contact angle of 5° or more and 50° or less.
    Type: Application
    Filed: August 8, 2016
    Publication date: August 9, 2018
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kazuki ISOGAI, Seiichiro MURASE, Hiroji SHIMIZU
  • Publication number: 20170263874
    Abstract: Provided is a CNT composite capable of achieving both high detection sensitivity and specific detection when used as a sensor. The carbon nanotube composite includes an aggregation inhibitor (A) and a blocking agent (B) attached to at least a portion of a surface.
    Type: Application
    Filed: November 19, 2015
    Publication date: September 14, 2017
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kazuki Isogai, Seiichiro Murase, Hiroji Shimizu
  • Publication number: 20160155948
    Abstract: A carbon nanotube composite has an organic substance attached to at least a part of a surface thereof. At least one functional group selected from a hydroxyl group, a carboxy group, an amino group, a mercapto group, a sulfo group, a phosphonic acid group, an organic or inorganic salt thereof, a formyl group, a maleimide group and a succinimide group is contained in at least a part of the carbon nanotube composite.
    Type: Application
    Filed: July 17, 2014
    Publication date: June 2, 2016
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Seiichiro Murase, Kazuki Isogai, Hiroji Shimizu