Patents by Inventor Yasunori Fukumoto

Yasunori Fukumoto 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).

  • Patent number: 9249417
    Abstract: An object of the present invention is to achieve a method capable of increasing transfection efficiency of polyethyleneimine (PEI) and reducing toxicity thereof, to provide a PEI with high transfection efficiency, and to provide a method of introducing nucleic acids into cells comprising using the PEI. There are provided a method of introducing nucleic acids into cells comprising mixing acidified PEI with nucleic acids under acidic conditions and applying the resulting mixture to cells, a reagent for introducing nucleic acids into cells comprising an acidified PEI solution, and a reagent kit including the solution.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: February 2, 2016
    Assignee: National University Corporation Chiba University
    Inventors: Naoto Yamaguchi, Yasunori Fukumoto
  • Patent number: 9245910
    Abstract: According to one embodiment, provided is an array substrate that can effectively prevent an oxide conductive film and a silicon nitride film on the oxide conductive film from peeling without deteriorating reliability. A method for manufacturing the array substrate includes a surface treatment step and a nitride film forming step. In the surface treatment step, by plasma discharge, the oxide conductive film is cleaned without being reduced, and surface layers of the insulating film layer not covered by the oxide conductive film and portions of the insulating film layer in the regions covered by the oxide conductive film are etched to form recesses leading to portions under the oxide conductive film. In the nitride film forming step, successively from the surface treatment step, the silicon nitride film is formed by plasma CVD so as to cover the recesses and the oxide conductive film.
    Type: Grant
    Filed: November 19, 2014
    Date of Patent: January 26, 2016
    Assignee: Japan Display Inc.
    Inventors: Yasunori Fukumoto, Toshihide Jinnai, Koji Sato
  • Publication number: 20150177556
    Abstract: According to one embodiment, provided is an array substrate that can effectively prevent an oxide conductive film and a silicon nitride film on the oxide conductive film from peeling without deteriorating reliability. A method for manufacturing the array substrate includes a surface treatment step and a nitride film forming step. In the surface treatment step, by plasma discharge, the oxide conductive film is cleaned without being reduced, and surface layers of the insulating film layer not covered by the oxide conductive film and portions of the insulating film layer in the regions covered by the oxide conductive film are etched to form recesses leading to portions under the oxide conductive film. In the nitride film forming step, successively from the surface treatment step, the silicon nitride film is formed by plasma CVD so as to cover the recesses and the oxide conductive film.
    Type: Application
    Filed: November 19, 2014
    Publication date: June 25, 2015
    Applicant: Japan Display Inc.
    Inventors: Yasunori FUKUMOTO, Toshihide JINNAI, Koji SATO
  • Publication number: 20130292606
    Abstract: An object of the present invention is to achieve a method capable of increasing transfection efficiency of polyethyleneimine (PEI) and reducing toxicity thereof, to provide a PEI with high transfection efficiency, and to provide a method of introducing nucleic acids into cells comprising using the PEI. There are provided a method of introducing nucleic acids into cells comprising mixing acidified PEI with nucleic acids under acidic conditions and applying the resulting mixture to cells, a reagent for introducing nucleic acids into cells comprising an acidified PEI solution, and a reagent kit including the solution.
    Type: Application
    Filed: July 8, 2013
    Publication date: November 7, 2013
    Inventors: Naoto Yamaguchi, Yasunori Fukumoto
  • Patent number: 8507270
    Abstract: An object of the present invention is to achieve a method capable of increasing transfection efficiency of polyethyleneimine (PEI) and reducing toxicity thereof, to provide a PEI with high transfection efficiency, and to provide a method of introducing nucleic acids into cells comprising using the PEI. There are provided a method of introducing nucleic acids into cells comprising mixing acidified PEI with nucleic acids under acidic conditions and applying the resulting mixture to cells, a reagent for introducing nucleic acids into cells comprising an acidified PEI solution, and a reagent kit including the solution.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: August 13, 2013
    Assignee: National University Corporation Chiba University
    Inventors: Naoto Yamaguchi, Yasunori Fukumoto
  • Publication number: 20110020927
    Abstract: An object of the present invention is to achieve a method capable of increasing transfection efficiency of polyethyleneimine (PEI) and reducing toxicity thereof, to provide a PEI with high transfection efficiency, and to provide a method of introducing nucleic acids into cells comprising using the PEI. There are provided a method of introducing nucleic acids into cells comprising mixing acidified PEI with nucleic acids under acidic conditions and applying the resulting mixture to cells, a reagent for introducing nucleic acids into cells comprising an acidified PEI solution, and a reagent kit including the solution.
    Type: Application
    Filed: April 1, 2010
    Publication date: January 27, 2011
    Applicant: NATIONAL UNIVERSITY CORPORATION CHIBA UNIVERSITY
    Inventors: Naoto Yamaguchi, Yasunori Fukumoto
  • Patent number: 6264089
    Abstract: A heater tool, which bonds by thermocompression outer leads of a TCP to electrodes on an array substrate, is fixed to a support block and is movable between a compression-bonding position, wherein the distal end portion of the heater tool presses the TCP to compression-bond the outer leads to the electrodes of the array substrate, and a waiting position wherein the distal end portion is spaced apart from the TCP. A pressing mechanism having a pressing member is mounted on the support block and movable in interlock with the movement of the heater tool. The pressing member presses the TCP to press the outer leads against the array substrate when the heater tool moves from the waiting position toward the compression bonding position.
    Type: Grant
    Filed: January 25, 1999
    Date of Patent: July 24, 2001
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsuya Hasegawa, Satoshi Yoshimura, Toshiaki Miyoshi, Yasunori Fukumoto, Yoshikazu Yomogihara
  • Patent number: 5894982
    Abstract: A heater tool, which bonds by thermocompression outer leads of a TCP to electrodes on an array substrate, is fixed to a support block and is movable between a compression-bonding position, wherein the distal end portion of the heater tool presses the TCP to compression-bond the outer leads to the electrodes of the array substrate, and a waiting position wherein the distal end portion is spaced apart from the TCP. A pressing mechanism having a pressing member is mounted on the support block and movable in interlock with the movement of the heater tool. The pressing member presses the TCP to press the outer leads against the array substrate when the heater tool moves from the waiting position toward the compression bonding position.
    Type: Grant
    Filed: September 27, 1996
    Date of Patent: April 20, 1999
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tatsuya Hasegawa, Satoshi Yoshimura, Toshiaki Miyoshi, Yasunori Fukumoto, Yoshikazu Yomogihara