Patents by Inventor Takeshi Nagatomo

Takeshi Nagatomo 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: 20200098790
    Abstract: A memory device includes first electrode layers stacked in a first direction, a first semiconductor layer piercing the first electrode layers in a first direction, a first insulating film surrounding the first semiconductor layer, and a semiconductor base connected to the first semiconductor layer. The first insulating film includes a first film, a second film, and a third film provided in order in a second direction from the first semiconductor layer toward one of first electrode layers. Spacing in the first direction between the second film and the semiconductor base is wider than a film thickness of the third film in the second direction. A minimum width of an outer perimeter of the first semiconductor layer is substantially the same as a width of an outer perimeter at a portion of the first semiconductor layer piercing the most proximal first electrode layer.
    Type: Application
    Filed: November 26, 2019
    Publication date: March 26, 2020
    Applicant: TOSHIBA MEMORY CORPORATION
    Inventors: Reiko KOMIYA, Tatsuo IZUMI, Takaya YAMANAKA, Takeshi NAGATOMO, Karin TAKAGI
  • Patent number: 10551763
    Abstract: An image forming apparatus includes a photosensitive member, a charging roller, a cleaning roller, an urging member and an image forming portion. The charging roller has an outermost surface layer including an electroconductive resin material, first surface particles having an average particle size of more than 7 ?m and less than 30 ?m and second surface particles having an average particle size of more than 2 ?m and less than 6 ?m. The first and second surface particles are dispersed in the electroconductive resin material so as to form first projections and second projections, respectively. The cleaning roller cleaning roller includes a shaft portion and an elastic cleaning portion extending helically around the shaft portion and having a rectangular cross-section perpendicular to an extending direction thereof.
    Type: Grant
    Filed: June 12, 2018
    Date of Patent: February 4, 2020
    Assignee: Canon Kabushiki Kaisha
    Inventors: Michihiro Yoshida, Takeshi Fujino, Kota Mori, Yuya Nagatomo, Jiro Kinokuni
  • Patent number: 10529735
    Abstract: A memory device includes first electrode layers stacked in a first direction, a first semiconductor layer piercing the first electrode layers in a first direction, a first insulating film surrounding the first semiconductor layer, and a semiconductor base connected to the first semiconductor layer. The first insulating film includes a first film, a second film, and a third film provided in order in a second direction from the first semiconductor layer toward one of first electrode layers. Spacing in the first direction between the second film and the semiconductor base is wider than a film thickness of the third film in the second direction. A minimum width of an outer perimeter of the first semiconductor layer is substantially the same as a width of an outer perimeter at a portion of the first semiconductor layer piercing the most proximal first electrode layer.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: January 7, 2020
    Assignee: TOSHIBA MEMORY CORPORATION
    Inventors: Reiko Komiya, Tatsuo Izumi, Takaya Yamanaka, Takeshi Nagatomo, Karin Takagi
  • Publication number: 20190287997
    Abstract: A memory device includes first electrode layers stacked in a first direction, a first semiconductor layer piercing the first electrode layers in a first direction, a first insulating film surrounding the first semiconductor layer, and a semiconductor base connected to the first semiconductor layer. The first insulating film includes a first film, a second film, and a third film provided in order in a second direction from the first semiconductor layer toward one of first electrode layers. Spacing in the first direction between the second film and the semiconductor base is wider than a film thickness of the third film in the second direction. A minimum width of an outer perimeter of the first semiconductor layer is substantially the same as a width of an outer perimeter at a portion of the first semiconductor layer piercing the most proximal first electrode layer.
    Type: Application
    Filed: September 11, 2018
    Publication date: September 19, 2019
    Applicant: Toshiba Memory Corporation
    Inventors: Reiko Komiya, Tatsuo Izumi, Takaya Yamanaka, Takeshi Nagatomo, Karin Takagi
  • Publication number: 20190253749
    Abstract: The time axis of certain content is easily and reliably determined, and other content is reproduced in synchronization with the reproduction of the content. A content reproduction program causes a computer to implement: a sound detection unit that detects sound of first content reproduced outside the computer; a time axis determination unit that determines, on the basis of the detected sound, a time axis of second content reproduced subsequent to the first content outside the computer; and a content reproduction unit that reproduces third content corresponding to the second content in synchronization with reproduction of the second content on the basis of the determined time axis.
    Type: Application
    Filed: October 27, 2016
    Publication date: August 15, 2019
    Applicant: Evixar Inc.
    Inventors: Atsushi TAKIGAWA, Hisaharu SUZUKI, Takeshi NASU, Yasuhiko NAGATOMO
  • Patent number: 10310402
    Abstract: An image forming apparatus includes a photosensitive member having a surface having elastic deformation power of 47% or more, a charging roller forming a nip between itself and the photosensitive member, and an image forming portion. When a nip region corresponding to the nip is formed and then an area of independent contact portions between the charging member and a measuring contact member is measured, the following relationship is satisfied: (contact width X)×(Contact area ratio ?)?0.1, where a length from a position of one end to a position of the other end of the nip region with respect to a direction perpendicular to a longitudinal direction of the charging roller is the contact width X, and a ratio of a sum of areas of the independent contact portions to an entire area of a measuring region is the contact area ratio ?.
    Type: Grant
    Filed: June 13, 2018
    Date of Patent: June 4, 2019
    Assignee: Canon Kabushiki Kaisha
    Inventors: Jiro Kinokuni, Kota Mori, Yuya Nagatomo, Michihiro Yoshida, Takeshi Fujino