Patents by Inventor Hiroo Miyamoto

Hiroo Miyamoto 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).

  • Inkjet recording medium
    Patent number: 11413897
    Abstract: An inkjet recording medium includes a substrate having a resin layer, a bonding layer disposed on the resin layer, and an ink-receiving layer disposed on the bonding layer. The surface of the inkjet recording medium on the ink-receiving layer side of the inkjet recording medium has a 20° glossiness of 13.0 or more. The bonding layer contains an ultraviolet inhibitor at a content of 5.0% by mass or more and 35.0% by mass or less based on the total mass of the bonding layer.
    Type: Grant
    Filed: May 5, 2020
    Date of Patent: August 16, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventors: Shoichi Takeda, Tetsuro Noguchi, Kazuhiko Araki, Hiroo Miyamoto
  • Recording medium substrate and recording medium
    Patent number: 10981405
    Abstract: A recording medium substrate in an aspect of the present invention is a recording medium substrate having a base paper and a stretched film layer on the base paper, wherein the stretched film layer has a thickness of 70 ?m or more, and the recording medium substrate has an average surface roughness of 0.3 ?m or less. A recording medium in another aspect of the present invention includes a recording medium substrate, a first ink receiving layer on the recording medium substrate, and a second ink receiving layer on the first ink receiving layer, wherein the first ink receiving layer is in contact with the second ink receiving layer, the first ink receiving layer contains an alumina hydrate and a hydroxy acid, the second ink receiving layer contains an alumina hydrate and a sulfonic acid.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 20, 2021
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuhiko Araki, Tetsuro Noguchi, Arika Tanaka, Shoichi Takeda, Hiroo Miyamoto
  • INKJET RECORDING MEDIUM
    Publication number: 20200353767
    Abstract: An inkjet recording medium includes a substrate having a resin layer, a bonding layer disposed on the resin layer, and an ink-receiving layer disposed on the bonding layer. The surface of the inkjet recording medium on the ink-receiving layer side of the inkjet recording medium has a 20° glossiness of 13.0 or more. The bonding layer contains an ultraviolet inhibitor at a content of 5.0% by mass or more and 35.0% by mass or less based on the total mass of the bonding layer.
    Type: Application
    Filed: May 5, 2020
    Publication date: November 12, 2020
    Inventors: Shoichi Takeda, Tetsuro Noguchi, Kazuhiko Araki, Hiroo Miyamoto
  • RECORDING MEDIUM SUBSTRATE AND RECORDING MEDIUM
    Publication number: 20190143728
    Abstract: A recording medium substrate in an aspect of the present invention is a recording medium substrate having a base paper and a stretched film layer on the base paper, wherein the stretched film layer has a thickness of 70 ?m or more, and the recording medium substrate has an average surface roughness of 0.3 ?m or less. A recording medium in another aspect of the present invention includes a recording medium substrate, a first ink receiving layer on the recording medium substrate, and a second ink receiving layer on the first ink receiving layer, wherein the first ink receiving layer is in contact with the second ink receiving layer, the first ink receiving layer contains an alumina hydrate and a hydroxy acid, the second ink receiving layer contains an alumina hydrate and a sulfonic acid.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 16, 2019
    Inventors: Kazuhiko Araki, Tetsuro Noguchi, Arika Tanaka, Shoichi Takeda, Hiroo Miyamoto