Patents by Inventor HIROTO ATAGI

HIROTO ATAGI 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: 11468910
    Abstract: A tape-like magnetic recording medium includes a reinforced substrate, and a recording layer arranged on the reinforced substrate, and the reinforced substrate includes a substrate that has a first face and a second face opposed to each other, and has an average thickness of 4 ?m or smaller, and a metal layer that contains cobalt, arranged on the first face, the reinforced substrate by itself causing thereon a depth of indentation of 0.25 ?m or shallower, when a 0.7-mm-diameter hard sphere is impressed against the second face under 5.0 gf load for 10 seconds.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: October 11, 2022
    Assignee: Sony Corporation
    Inventors: Hiroto Atagi, Noboru Sekiguchi, Takashi Aizawa, Tomoe Ozaki, Koji Suzuki, Yoichi Kanemaki, Teruo Sai, Ryoichi Hiratsuka, Kazuya Hashimoto
  • Publication number: 20220108723
    Abstract: A tape-like magnetic recording medium includes a reinforced substrate, and a recording layer arranged on the reinforced substrate, and the reinforced substrate includes a substrate that has a first face and a second face opposed to each other, and has an average thickness of 4 ?m or smaller, and a metal layer that contains cobalt, arranged on the first face, the reinforced substrate by itself causing thereon a depth of indentation of 0.25 ?m or shallower, when a 0.7-mm-diameter hard sphere is impressed against the second face under 5.0 gf load for 10 seconds.
    Type: Application
    Filed: August 29, 2019
    Publication date: April 7, 2022
    Inventors: Hiroto ATAGI, Noboru SEKIGUCHI, Takashi AIZAWA, Tomoe OZAKI, Koji SUZUKI, Yoichi KANEMAKI, Teruo SAI, Ryoichi HIRATSUKA, Kazuya HASHIMOTO
  • Publication number: 20220084550
    Abstract: An object is to suppress or prevent a dimensional change of a magnetic recording tape. The present technology provides a magnetic recording tape having a layer structure including a magnetic layer, a base layer, and a back layer in this order, in which a reinforcing layer containing a metal or a metal oxide is disposed on either a surface of the base layer on the magnetic layer side or a surface of the base layer on the back layer side, and a black area in an image obtained by binarizing an optical microscope image of a rectangular region of 64 ?m×48 ?m of the reinforcing layer is 300 ?m2 or less.
    Type: Application
    Filed: December 2, 2019
    Publication date: March 17, 2022
    Inventors: TOMOE OZAKI, JUNICHI TACHIBANA, TOMOE SATO, RYOICHI HIRATSUKA, HIROTO ATAGI, KAZUYA HASHIMOTO, YOICHI KANEMAKI, YUUKO KAMOSHITA, HIKARU TERUI