Patents by Inventor Toru Tsukamoto

Toru Tsukamoto 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: 12129529
    Abstract: In the present invention, a high-purity metallic tin suitable for use in an EUV exposure device is provided through use of an oxidation-resistant metallic tin, the oxidation-resistant metallic tin containing 99.995 mass % or more of tin, and unavoidable impurities, and the thickness of an oxide film being 2.0 nm or less when the surface of a cut face of the oxidation-resistant metallic tin is measured by AES.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: October 29, 2024
    Assignee: JX Advanced Metals Corporation
    Inventors: Takahiro Uchida, Toru Imori, Koichi Takemoto, Shiro Tsukamoto
  • Patent number: 12087598
    Abstract: A substrate processing apparatus, includes: a process chamber accommodating a substrate; a vaporizer vaporizing a liquid precursor to generate reaction gas and deliver a processing gas containing the reaction gas and a carrier gas, the vaporizer including: a vaporization vessel; and a heater heating the liquid precursor introduced into the vessel; a carrier gas flow rate controller controlling flow rate of the carrier gas supplied to the vaporizer; a liquid precursor flow rate controller controlling flow rate of the liquid precursor; a processing gas supply pipe introducing the processing gas delivered from the vaporizer into the process chamber; and a gas concentration sensor detecting a gas concentration of the reaction gas contained in the processing gas delivered from the vaporizer into the processing gas supply pipe.
    Type: Grant
    Filed: March 13, 2018
    Date of Patent: September 10, 2024
    Assignee: KOKUSAI ELECTRIC CORPORATION
    Inventors: Hideto Tateno, Daisuke Hara, Masahisa Okuno, Takuya Joda, Takashi Tsukamoto, Akinori Tanaka, Toru Kakuda, Sadayoshi Horii
  • Patent number: 8711319
    Abstract: A liquid crystal display device restraining display defects even in a structure having a potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of a liquid crystal material. An electrostatic charge stored in the vicinity of a liquid crystal layer of the liquid crystal display device as a result of the potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of the liquid crystal material is dispersed by employing a capacitor or an arrester connected to ground. Accordingly, discharge of the stored charge is facilitated, and occurrence of display defects is restrained.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: April 29, 2014
    Assignee: Optrex Corporation
    Inventors: Shigeru Kojima, Yutaka Nakagawa, Toru Tsukamoto, Kenji Gondo
  • Publication number: 20110261310
    Abstract: A liquid crystal display device restraining display defects even in a structure having a potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of a liquid crystal material. An electrostatic charge stored in the vicinity of a liquid crystal layer of the liquid crystal display device as a result of the potential difference between an externally-connected electrode potential and the mean potential of the drive waveform of the liquid crystal material is dispersed by employing a capacitor or an arrester connected to ground. Accordingly, discharge of the stored charge is facilitated, and occurrence of display defects is restrained.
    Type: Application
    Filed: April 20, 2011
    Publication date: October 27, 2011
    Applicant: OPTREX CORPORATION
    Inventors: Shigeru Kojima, Yutaka Nakagawa, Toru Tsukamoto, Kenji Gondo