Patents by Inventor Yujiro ISHIGAMI

Yujiro ISHIGAMI 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).

  • DECORATIVE ARTICLE MANUFACTURING METHOD, AND DECORATIVE ARTICLE
    Publication number: 20220032355
    Abstract: A decorative article includes a base and a decorative portion. The base includes a grained surface formed in a grained manner. The decorative portion includes at least a protective layer, a metal layer, and an adhesive layer. The decorative portion is bonded to at least a part of the grained surface of the base by the adhesive layer.
    Type: Application
    Filed: October 10, 2019
    Publication date: February 3, 2022
    Inventors: Yujiro ISHIGAMI, Motoshi OGISU, Kimihiro IIMURA
  • Tellurium compound nanoparticles, composite nanoparticles, and production methods therefor
    Patent number: 10081764
    Abstract: Tellurium compound nanoparticles, including: an element M1 where M1 is at least one element selected from Cu, Ag, and Au; an element M2 where M2 is at least one element selected from B, Al, Ga, and In; Te; and optionally an element M3 where M3 is at least one element selected from Zn, Cd, and Hg; wherein a crystal structure of the tellurium compound nanoparticles is a hexagonal system, the tellurium compound nanoparticles are of a rod shape and have an average short-axis length of 5.5 nm or less, and when irradiated with light at a wavelength in a range of 350 nm to 1,000 nm, the tellurium compound nanoparticles emit photoluminescence having a wavelength longer than the wavelength of the irradiation light.
    Type: Grant
    Filed: July 1, 2016
    Date of Patent: September 25, 2018
    Assignees: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, NICHIA CORPORATION
    Inventors: Tsukasa Torimoto, Tatsuya Kameyama, Yujiro Ishigami, Kouta Sugiura, Daisuke Oyamatsu
  • TELLURIUM COMPOUND NANOPARTICLES, COMPOSITE NANOPARTICLES, AND PRODUCTION METHODS THEREFOR
    Publication number: 20170002265
    Abstract: Tellurium compound nanoparticles, including: an element M1 where M1 is at least one element selected from Cu, Ag, and Au; an element M2 where M2 is at least one element selected from B, Al, Ga, and In; Te; and optionally an element M3 where M3 is at least one element selected from Zn, Cd, and Hg; wherein a crystal structure of the tellurium compound nanoparticles is a hexagonal system, the tellurium compound nanoparticles are of a rod shape and have an average short-axis length of 5.5 nm or less, and when irradiated with light at a wavelength in a range of 350 nm to 1,000 nm, the tellurium compound nanoparticles emit photoluminescence having a wavelength longer than the wavelength of the irradiation light.
    Type: Application
    Filed: July 1, 2016
    Publication date: January 5, 2017
    Applicants: NATIONAL UNIVERSITY CORPORATION NAGOYA UNIVERSITY, NICHIA CORPORATION
    Inventors: Tsukasa TORIMOTO, Tatsuya KAMEYAMA, Yujiro ISHIGAMI, Kouta SUGIURA, Daisuke OYAMATSU