Patents by Inventor Masaharu Emoto

Masaharu Emoto 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).

  • Method for removing acidic deposit
    Patent number: 8202370
    Abstract: To provide a method for removing an acidic deposit containing a sulfur compound, whereby the terminal point of the cleaning state can be ascertained simply and efficiently without necessity to visually directly observe the cleaning state or to observe the behavior of the pH value of the cleaning fluid. A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with a prescribed amount of an aqueous cleaning fluid, characterized in that the concentration of sulfate ion (SO42?) in the aqueous cleaning fluid is measured, and the contact with the aqueous cleaning fluid is terminated after the increase per hour of the measured value becomes 15 not more than 10%.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: June 19, 2012
    Assignee: Asahi Glass Company, Limited
    Inventors: Shigeru Sakurai, Masaharu Emoto
  • METHOD FOR REMOVING ACIDIC DEPOSIT
    Publication number: 20080053483
    Abstract: To provide a method for removing an acidic deposit containing a sulfur compound, whereby the terminal point of the cleaning state can be ascertained simply and efficiently without necessity to visually directly observe the cleaning state or to observe the behavior of the pH value of the cleaning fluid. A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with a prescribed amount of an aqueous cleaning fluid, characterized in that the concentration of sulfate ion (SO42?) in the aqueous cleaning fluid is measured, and the contact with the aqueous cleaning fluid is terminated after the increase per hour of the measured value becomes not more than 10%.
    Type: Application
    Filed: October 25, 2007
    Publication date: March 6, 2008
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Shigeru Sakurai, Masaharu Emoto
  • Method for removing an acidic deposit
    Patent number: 6524397
    Abstract: A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with an aqueous solution of an alkali metal carbonate and/or an alkali metal hydrogencarbonate to remove it.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: February 25, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Shigeru Sakurai, Masaharu Emoto, Hachiro Hirano, Makoto Yoshida, Hiroaki Noda, Michihiro Kawano
  • Method for removing an acidic deposit
    Publication number: 20010039958
    Abstract: A method for removing an acidic deposit containing a sulfur compound, which comprises contacting the acidic deposit with an aqueous solution of an alkali metal carbonate and/or an alkali metal hydrogencarbonate to remove it.
    Type: Application
    Filed: April 5, 2001
    Publication date: November 15, 2001
    Applicant: Asahi Glass Company, Limited
    Inventors: Shigeru Sakurai, Masaharu Emoto, Hachiro Hirano, Makoto Yoshida, Hiroaki Noda, Michihiro Kawano