Patents by Inventor Kenichi Ueki

Kenichi Ueki 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).

  • Resonator electrode material excellent in aging property, piezoelectric resonator using the same material, and sputtering target made of the same material
    Patent number: 9065418
    Abstract: An electrode material capable of making more satisfactory the dispersion at the time of production and the aging property of a resonator than Au and capable of reducing the price as compared to Au. An resonator electrode material including a ternary alloy composed of Au and two metals M1 and M2, and being used as an excitation electrode to excite oscillation in a piezoelectric element, wherein the two metals M1 and M2 are, respectively, (a) metal M1: a metal exhibiting a tendency to decrease the temporal frequency property (?f1/f1) from the reference value f1, and (b) metal M2: a metal exhibiting a tendency to increase the temporal frequency property (?f1/f1) from the reference value f1. The metal M1 is preferably at least any one of Ag, Al and Ni, and the metal M2 is preferably at least any one of Pd, Ru, Pt, Ir, Rh and Cu.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: June 23, 2015
    Assignees: Nihon Dempa Kogyo Co. Ltd., Tanaka Kikinzoko Kogyo K.K.
    Inventors: Toshinori Ogashiwa, Masaaki Kurita, Takashi Terui, Takeyuki Sagae, Katsunori Akane, Kenzo Okamoto, Kenichi Ueki, Shohei Takeda
  • Oscillator Electrode Material Having Excellent Aging Characteristics, Piezoelectric Oscillator Using The Material And Sputtering Target Comprising The Material
    Publication number: 20120248943
    Abstract: An electrode material capable of making more satisfactory the dispersion at the time of production and the aging property of a resonator than Au and capable of reducing the price as compared to Au. An resonator electrode material including a ternary alloy composed of Au and two metals M1 and M2, and being used as an excitation electrode to excite oscillation in a piezoelectric element, wherein the two metals M1 and M2 are, respectively, (a) metal M1: a metal exhibiting a tendency to decrease the temporal frequency property (?f1/f1) from the reference value f1, and (b) metal M2: a metal exhibiting a tendency to increase the temporal frequency property (?f1/f1) from the reference value f1. The metal M1 is preferably at least any one of Ag, Al and Ni, and the metal M2 is preferably at least any one of Pd, Ru, Pt, Ir, Rh and Cu.
    Type: Application
    Filed: April 28, 2010
    Publication date: October 4, 2012
    Inventors: Toshinori Ogashiwa, Masaaki Kurita, Takashi Terui, Takayuki Sagae, Katsunori Akane, Kenzo Okamoto, Kenichi Ueki, Shohei Takeda