Patents by Inventor Risa AKIYAMA

Risa AKIYAMA 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: 9472323
    Abstract: A differential signal transmission cable is composed of a Twinax cable including twin electrically insulated wires, which are arranged side by side in contact with each other, and a drain wire, which is arranged in contact with and parallel to both of the twin electrically insulated wires, and a shield tape, which is wound around a circumference of the Twinax cable including the drain wire. When in cross sectional view, an isosceles triangle is defined as having, as its base, a line segment that joins respective centers of the twin electrically insulated wires, and as its vertex point, a center of the drain wire, the isosceles triangle has a vertex angle of not smaller than 74 degrees and not greater than 90 degrees.
    Type: Grant
    Filed: December 29, 2014
    Date of Patent: October 18, 2016
    Assignee: HITACHI METALS, LTD.
    Inventors: Detian Huang, Masanori Kobayashi, Risa Akiyama
  • Publication number: 20150310966
    Abstract: A differential signal transmission cable is composed of a Twinax cable including twin electrically insulated wires, which are arranged side by side in contact with each other, and a drain wire, which is arranged in contact with and parallel to both of the twin electrically insulated wires, and a shield tape, which is wound around a circumference of the Twinax cable including the drain wire. When in cross sectional view, an isosceles triangle is defined as having, as its base, a line segment that joins respective centers of the twin electrically insulated wires, and as its vertex point, a center of the drain wire, the isosceles triangle has a vertex angle of not smaller than 74 degrees and not greater than 90 degrees.
    Type: Application
    Filed: December 29, 2014
    Publication date: October 29, 2015
    Applicant: HITACHI METALS, LTD.
    Inventors: Detian HUANG, Masanori Kobayashi, Risa Akiyama
  • Publication number: 20150310965
    Abstract: A differential signal transmission cable is composed of twin electrically insulated wires arranged side by side in contact with each other, and a drain wire arranged longitudinally along the twin electrically insulated wires. The twin electrically insulated wires include a fusion bonding layer and are integrated in such a manner that the twin electrically insulated wires, excluding their contacted portions, are being coated with that fusion bonding layer.
    Type: Application
    Filed: December 30, 2014
    Publication date: October 29, 2015
    Applicant: HITACHI METALS, LTD.
    Inventors: Detian HUANG, Masanori KOBAYASHI, Risa AKIYAMA