Patents by Inventor Senku TANAKA

Senku TANAKA 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).

  • Method for producing carbon nanotube sheet and carbon nanotube sheet
    Patent number: 10562775
    Abstract: The present invention provides a method for producing a carbon nanotube sheet that is excellent in light transmittance and conductivity, and the carbon nanotube sheet. The method includes firstly modifying of modifying a free-standing unmodified carbon nanotube sheet in which a plurality of carbon nanotubes are aligned in a predetermined direction. The firstly modifying includes performing a densification process of bringing the unmodified carbon nanotube sheet into contact with either one of or both of vapor and liquid particles of a liquid substance to produce a modified carbon nanotube sheet that contains the carbon nanotubes which are mainly aligned in a predetermined direction, and that includes a high density portion where the carbon nanotubes are assembled together and a low density portion where density of the carbon nanotubes is relatively lower than density in the high density portion.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: February 18, 2020
    Assignees: Lintec Corporation, Lintec of America, Inc., Kinki University
    Inventors: Raquel Ovalle, Senku Tanaka, Kanzan Inoue
  • METHOD FOR PRODUCING CARBON NANOTUBE SHEET AND CARBON NANOTUBE SHEET
    Publication number: 20170362089
    Abstract: The present invention provides a method for producing a carbon nanotube sheet that is excellent in light transmittance and conductivity, and the carbon nanotube sheet. The method includes firstly modifying of modifying a free-standing unmodified carbon nanotube sheet in which a plurality of carbon nanotubes are aligned in a predetermined direction. The firstly modifying includes performing a densification process of bringing the unmodified carbon nanotube sheet into contact with either one of or both of vapor and liquid particles of a liquid substance to produce a modified carbon nanotube sheet that contains the carbon nanotubes which are mainly aligned in a predetermined direction, and that includes a high density portion where the carbon nanotubes are assembled together and a low density portion where density of the carbon nanotubes is relatively lower than density in the high density portion.
    Type: Application
    Filed: November 20, 2015
    Publication date: December 21, 2017
    Inventors: Raquel OVALLE, Senku TANAKA, Kanzan INOUE