Patents by Inventor Shigeki TOKUCHI

Shigeki TOKUCHI 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: 20230307549
    Abstract: A sputtering target material comprises an oxide including elemental indium (In), elemental zinc (Zn), and an additive element (X). The additive element (X) is one or more elements selected from tantalum (Ta), strontium (Sr), and niobium (Nb). In the sputtering target material, the atomic ratios between the elements satisfy the formulae (1) to (3) below. The sputtering target material has a relative density of 95% or more. 0.4 ? In+X / In+Zn+X ? 0.8 ­­­(1) 0.2 ? Zn / In+Zn+X ? 0.
    Type: Application
    Filed: August 2, 2021
    Publication date: September 28, 2023
    Inventors: Kyosuke TERAMURA, Ryo SHIRANITA, Shigeki TOKUCHI
  • Patent number: 9873824
    Abstract: A polishing material including polishing abrasive grains, the polishing abrasive grain having a core material that includes a metal oxide, and a cover layer that is provided on a surface of the core material and includes an oxide of a metal, that is different from the core material, or an oxide of a semimetal. When the polishing abrasive grains are observed with a scanning electron microscope after boiling a slurry including the polishing abrasive grains for 5 hours, a ratio of a longitudinal axis to a lateral axis of the polishing abrasive grain is 1.0 or greater and less than 1.5. The polishing abrasive grain preferably has a mass ratio of the cover layer to the core material, cover layer/core material, of from 0.3 mass % to 30 mass % inclusive. The cover layer preferably has a thickness of from 0.2 nm to 500 nm inclusive.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: January 23, 2018
    Assignee: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Sumikazu Ogata, Shigeki Tokuchi, Yohei Maruyama, Motomi Oshika
  • Publication number: 20160222265
    Abstract: A polishing material including polishing abrasive grains, the polishing abrasive grain having a core material that includes a metal oxide, and a cover layer that is provided on a surface of the core material and includes an oxide of a metal, that is different from the core material, or an oxide of a semimetal. When the polishing abrasive grains are observed with a scanning electron microscope after boiling a slurry including the polishing abrasive grains for 5 hours, a ratio of a longitudinal axis to a lateral axis of the polishing abrasive grain is 1.0 or greater and less than 1.5. The polishing abrasive grain preferably has a mass ratio of the cover layer to the core material, cover layer/core material, of from 0.3 mass % to 30 mass % inclusive. The cover layer preferably has a thickness of from 0.2 nm to 500 nm inclusive.
    Type: Application
    Filed: August 29, 2014
    Publication date: August 4, 2016
    Inventors: Sumikazu OGATA, Shigeki TOKUCHI, Yohei MARUYAMA, Motomi OSHIKA
  • Publication number: 20110158845
    Abstract: To provide an Al—Ni alloy wiring electrode material, which has flexibility suitable for organic EL, can be directly bonded to a transparent electrode layer of ITO or the like, and is excellent in corrosion resistance against developers. An Al—Ni alloy wiring electrode material containing aluminum, nickel and boron, wherein the material contains a total of 0.35 at % to 1.2 at % of nickel and boron with the balance being aluminum. It is also preferred that the Al—Ni alloy wiring electrode material contain 0.3 at % to 0.7 at % of nickel and 0.05 at % to 0.5 at % of boron.
    Type: Application
    Filed: March 13, 2009
    Publication date: June 30, 2011
    Applicant: MITSUI MINING & SMELTING CO., LTD.
    Inventors: Shigeki Tokuchi, Ryoma Tsukuda, Tomoyasu Yano, Yoshinori Matsuura, Takashi Kubota
  • Publication number: 20100244032
    Abstract: An Aluminum-Nickel alloy wiring material includes Aluminum, Nickel, Cerium, and Boron. A thin film transistor includes the Aluminum-Nickel alloy wiring material. A sputtering target comprises Aluminum, Nickel, Cerium and Boron. A method of manufacturing a thin film transistor substrate comprises disposing a thin film transistor on a substrate, wherein the thin film transistor includes a wiring circuit layer comprising Aluminum, Nickel, Cerium, and Boron. The Nickel, Cerium and Boron satisfy the following inequalities; 0.5?X?5.0, 0.01?Y?1.0, and 0.01?Z?1.0, respectively, wherein X represents an atomic percentage of Nickel content, Y represents an atomic percentage of Cerium content, and Z represents an atomic percentage of Boron content.
    Type: Application
    Filed: March 31, 2010
    Publication date: September 30, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Pil Sang YUN, Byeong-Beom KIM, Changoh JEONG, Yangho BAE, Shigeki TOKUCHI, Ryoma TSUKUDA, Yoshinori MATSUURA, Takashi KUBOTA