Patents by Inventor Watanabe YOHICHIROH

Watanabe YOHICHIROH 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 manufacturing toner and toner
    Patent number: 8652744
    Abstract: A method for producing toner particles by ejecting a liquid from at least one ejection hole to form the liquid into liquid droplets, and solidifying the liquid droplets to produce toner particles. The ejecting is accomplished by applying a vibration to the liquid in a liquid column resonance-generating liquid chamber in which an ejection hole is formed to form a standing wave through liquid column resonance, and ejecting the liquid from the ejection hole which is formed in a region corresponding to an antinode of the standing wave to thereby form the liquid into the liquid droplets. Toner produced by the method.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: February 18, 2014
    Assignee: Ricoh Company, Ltd.
    Inventors: Watanabe Yohichiroh, Yoshihiro Norikane, Yasutada Shitara, Keiji Makabe
  • METHOD FOR MANUFACTURING TONER AND TONER
    Publication number: 20110305987
    Abstract: A method for producing toner particles by ejecting a liquid from at least one ejection hole to form the liquid into liquid droplets, and solidifying the liquid droplets to produce toner particles. The ejecting is accomplished by applying a vibration to the liquid in a liquid column resonance-generating liquid chamber in which an ejection hole is formed to form a standing wave through liquid column resonance, and ejecting the liquid from the ejection hole which is formed in a region corresponding to an antinode of the standing wave to thereby form the liquid into the liquid droplets. Toner produced by the method.
    Type: Application
    Filed: May 20, 2011
    Publication date: December 15, 2011
    Inventors: Watanabe YOHICHIROH, Yoshihiro NORIKANE, Yasutada SHITARA, Keiji MAKABE