Patents by Inventor Shigetoshi Yoshida

Shigetoshi Yoshida 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).

  • POLYSILICON ROD AND METHOD FOR MANUFACTURING POLYSILICON ROD
    Publication number: 20240150934
    Abstract: A polysilicon rod has a diameter of 120 mm or more, the polysilicon rod having a lowest resistivity of 3300 ?cm or more and an RRG of 100% or less. A polysilicon rod has a diameter of 140 mm or more, the polysilicon rod having a lowest resistivity of 3300 ?cm or more and an RRG of 150% or less.
    Type: Application
    Filed: November 3, 2023
    Publication date: May 9, 2024
    Applicant: Shin-Etsu Chemical Co., Ltd.
    Inventors: Atsushi YOSHIDA, Naruhiro HOSHINO, Masahiko ISHIDA, Takeshi AOYAMA, Shigetoshi YAMAGISHI, Yoshio KANEKO
  • Method of circulating water in circulatory water tank system and liquid composition for sterilizing and disinfecting circulatory water tank system
    Publication number: 20040029758
    Abstract: Disclosed is a method for circulating water through a circulating tub system, which method gives no harm to human body and no damage to the system, is capable of inhibiting formation of biofilms wherein Legionella inhibit, and circulates water while bacteria such as Legionella, Pseudomonas aeruginosa, and Escherichia coli are effectively sterilized and disinfected, and while foaming is suppressed. The method includes circulating, through water circulation piping of a circulating tub system, water containing a quaternary ammonium salt, 2-phenoxyethanol, and an antifoaming agent, wherein a total concentration of the quaternary ammonium salt and the 2-phenoxyethanol is 10 to 100 ppm.
    Type: Application
    Filed: April 8, 2003
    Publication date: February 12, 2004
    Inventors: Masashi Yoshida, Shigetoshi Yoshida