Patents by Inventor Atsuko Sekiguchi

Atsuko Sekiguchi 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: 20240075557
    Abstract: A build system includes: a build apparatus including an energy beam irradiation unit, a material supply unit, and a control apparatus. The build system builds a second object above a first object including a first space. The second object includes: a first inclination part connected to the first object; a second inclination part connected to the first object; and a connection part that connects a tip of the first inclination part and a tip of the second inclination part. The build system builds the first inclination part and the second inclination part by alternately performing a building of a part of the first inclination part and a building of a part of the second inclination part. A second space below the first inclination part and the second inclination part is connected to the first space, and an upper part of the second space is closed by the connection part.
    Type: Application
    Filed: January 22, 2021
    Publication date: March 7, 2024
    Applicant: NIKON CORPORATION
    Inventors: Kazuki UENO, Motofusa ISHIKAWA, Koichi YASUBA, Kei SEKIGUCHI, Atsuko MASUDA, Fumika SHIKI
  • Publication number: 20230194977
    Abstract: A pellicle film for photolithography including a carbon nanotube film, in which the carbon nanotube film contains carbon nanotubes; the carbon nanotube film transmits 80% or more of EUV light at a wavelength of 13.5 nm; the carbon nanotube film has a thickness from 1 nm to 50 nm; the carbon nanotube film is deposited on a silicon substrate, in which the 3? of the reflectance is 15% or less when the reflectance of the deposited carbon nanotube film is measured using a reflectance spectrophotometer-based film thickness meter under the following conditions: the diameter of measurement spots, 20 ?m; the reference measurement wavelength, 285 nm; the number of measurement spots, 121 spots; the distance between the centers of adjacent measurement spots, 40 ?m.
    Type: Application
    Filed: April 2, 2021
    Publication date: June 22, 2023
    Applicants: MITSUI CHEMICALS, INC., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yousuke ONO, Hisako ISHIKAWA, Ryohei OGAWA, Atsushi OKUBO, Kazuo KOHMURA, Atsuko SEKIGUCHI, Yuichi KATO, Takeo YAMADA, Ying ZHOU
  • Patent number: 11042085
    Abstract: Provided are a pellicle film, a pellicle frame and a pellicle having a higher EUV transmittance. An exposure pattern plate capable of performing EUV lithography with the pellicle film, the pellicle frame or the pellicle, and a method for producing a semiconductor device, are provided. A pellicle film for exposure extendable over an opening of a support frame and having a thickness of 200 nm or less is provided. The film includes a carbon nanotube sheet. The carbon nanotube sheet includes bundles each including a plurality of carbon nanotubes, the bundles each have a diameter of 100 nm or shorter, and the bundles are aligned in a planar direction in the carbon nanotube sheet.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: June 22, 2021
    Assignees: MITSUI CHEMICALS, INC., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yosuke Ono, Atsushi Okubo, Kazuo Kohmura, Atsuko Sekiguchi, Yuichi Kato, Takeo Yamada
  • Patent number: 10990001
    Abstract: Provided are a pellicle film, a pellicle frame and a pellicle having a higher EUV transmittance. An exposure pattern plate capable of performing EUV lithography with the pellicle film, the pellicle frame or the pellicle, and a method for producing a semiconductor device, are provided. A pellicle film for exposure extendable over an opening of a support frame and having a thickness of 200 nm or less is provided. The film includes a carbon nanotube sheet. The carbon nanotube sheet includes bundles each including a plurality of carbon nanotubes, the bundles each have a diameter of 100 nm or shorter, and the bundles are aligned in a planar direction in the carbon nanotube sheet.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: April 27, 2021
    Assignees: MITSUI CHEMICALS, INC., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yosuke Ono, Atsushi Okubo, Kazuo Kohmura, Atsuko Sekiguchi, Yuichi Kato, Takeo Yamada
  • Publication number: 20190129300
    Abstract: Provided are a pellicle film, a pellicle frame and a pellicle having a higher EUV transmittance. An exposure pattern plate capable of performing EUV lithography with the pellicle film, the pellicle frame or the pellicle, and a method for producing a semiconductor device, are provided. A pellicle film for exposure extendable over an opening of a support frame and having a thickness of 200 nm or less is provided. The film includes a carbon nanotube sheet. The carbon nanotube sheet includes bundles each including a plurality of carbon nanotubes, the bundles each have a diameter of 100 nm or shorter, and the bundles are aligned in a planar direction in the carbon nanotube sheet.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 2, 2019
    Applicants: MITSUI CHEMICALS, INC., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Yosuke Ono, Atsushi Okubo, Kazuo Kohmura, Atsuko Sekiguchi, Yuichi Kato, Takeo Yamada
  • Patent number: 10023715
    Abstract: Provided are: an elastomer structure containing carbon nanotubes; and a method for producing the elastomer structure. In a CNT elastomer having a mesh shaped carbon nanotube aggregate on a surface layer thereof, the mesh shaped carbon nanotube aggregate can impart a shape-retaining property to the elastomer. Therefore, the elastomer can be molded along the shape of a mold, and it becomes possible to mold a carbon nanotube elastomer having a fine dimension. The elastomer structure containing carbon nanotubes according to the present invention is provided with mesh shaped carbon nanotube aggregate which are embedded in a surface layer of the elastomer structure containing carbon nanotubes and are not protruded from the surface of the elastomer structure containing carbon nanotubes.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: July 17, 2018
    Assignee: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Kenji Hata, Atsuko Sekiguchi
  • Publication number: 20160200892
    Abstract: Provided are: an elastomer structure containing carbon nanotubes; and a method for producing the elastomer structure. In a CNT elastomer having a mesh shaped carbon nanotube aggregate on a surface layer thereof, the mesh shaped carbon nanotube aggregate can impart a shape-retaining property to the elastomer. Therefore, the elastomer can be molded along the shape of a mold, and it becomes possible to mold a carbon nanotube elastomer having a fine dimension. The elastomer structure containing carbon nanotubes according to the present invention is provided with mesh shaped carbon nanotube aggregate which are embedded in a surface layer of the elastomer structure containing carbon nanotubes and are not protruded from the surface of the elastomer structure containing carbon nanotubes.
    Type: Application
    Filed: October 16, 2015
    Publication date: July 14, 2016
    Inventors: Kenji Hata, Atsuko Sekiguchi