Patents by Inventor Hidetoshi TAKO

Hidetoshi TAKO 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 element, liquid discharge head, and printer
    Patent number: 11312137
    Abstract: A piezoelectric element includes: a first electrode provided on a base; a piezoelectric layer provided on the first electrode and containing a complex oxide which has a perovskite structure and contains potassium, sodium, and niobium; and a second electrode provided on the piezoelectric layer, in which the first electrode contains platinum, the first electrode is (111) preferentially oriented, and a platinum atom contained in the first electrode is bonded to an oxygen atom at an interface between the first electrode and the piezoelectric layer.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 26, 2022
    Inventors: Kazuya Kitada, Masayuki Omoto, Hidemichi Furihata, Kazuhide Gomi, Hidetoshi Tako
  • PIEZOELECTRIC ELEMENT, LIQUID DISCHARGE HEAD, AND PRINTER
    Publication number: 20200324546
    Abstract: A piezoelectric element includes: a first electrode provided on a base; a piezoelectric layer provided on the first electrode and containing a complex oxide which has a perovskite structure and contains potassium, sodium, and niobium; and a second electrode provided on the piezoelectric layer, in which the first electrode contains platinum, the first electrode is (111) preferentially oriented, and a platinum atom contained in the first electrode is bonded to an oxygen atom at an interface between the first electrode and the piezoelectric layer.
    Type: Application
    Filed: April 9, 2020
    Publication date: October 15, 2020
    Inventors: Kazuya KITADA, Masayuki OMOTO, Hidemichi FURIHATA, Kazuhide GOMI, Hidetoshi TAKO