Patents by Inventor Ryuta Mitsui

Ryuta Mitsui 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).

  • Piezoelectric material, piezoelectric element, liquid discharge head, ultrasonic motor, and dust removing device
    Patent number: 9306149
    Abstract: Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25?x?0.75, y satisfies 0.15?y?0.70, z satisfies 0.05?z?0.60, and x+y+z=1 is satisfied.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: April 5, 2016
    Assignees: Canon Kabushiki Kaisha, University of Yamanashi
    Inventors: Jumpei Hayashi, Hisato Yabuta, Makoto Kubota, Mikio Shimada, Satoshi Wada, Ichiro Fujii, Ryuta Mitsui, Nobuhiro Kumada
  • PIEZOELECTRIC MATERIAL, PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, ULTRASONIC MOTOR, AND DUST REMOVING DEVICE
    Publication number: 20130270965
    Abstract: Provided is a piezoelectric material that achieves both high piezoelectric performance and high Curie temperature. In addition, provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric material. The piezoelectric material includes a perovskite-type metal oxide that is expressed by the following general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3 (1), where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.25?x?0.75, y satisfies 0.15?y?0.70, z satisfies 0.05?z?0.60, and x+y+z=1 is satisfied.
    Type: Application
    Filed: December 22, 2011
    Publication date: October 17, 2013
    Applicants: UNIVERSITY OF YAMANASHI, CANON KABUSHIKI KAISHA
    Inventors: Jumpei Hayashi, Hisato Yabuta, Makoto Kubota, Mikio Shimada, Satoshi Wada, Ichiro Fujii, Ryuta Mitsui, Nobuhiro Kumada