Patents by Inventor Yukihisa Ohsugi

Yukihisa Ohsugi 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).

  • Lamb wave device
    Patent number: 7965015
    Abstract: There is provided a lamb wave device with small variations in frequency, the device including: a piezoelectric thin film; an IDT electrode which is provided on a main surface of the piezoelectric thin film; and a support structure which supports a laminate of the IDT electrode and the piezoelectric thin film, and is formed with a cavity that isolates the laminate, wherein a film thickness h of the piezoelectric thin film and a pitch p of a finger of the IDT electrode are selected such that a lamb wave is excited at a target frequency, the lamb wave making dispersibility of a sonic velocity v with respect to the film thickness h of the piezoelectric thin film small.
    Type: Grant
    Filed: November 16, 2009
    Date of Patent: June 21, 2011
    Assignee: NGK Insulators, Ltd.
    Inventors: Tomoyoshi Tai, Masahiro Sakai, Yukihisa Ohsugi
  • LAMB WAVE DEVICE
    Publication number: 20100123367
    Abstract: There is provided a lamb wave device with small variations in frequency, the device including: a piezoelectric thin film; an IDT electrode which is provided on a main surface of the piezoelectric thin film; and a support structure which supports a laminate of the IDT electrode and the piezoelectric thin film, and is formed with a cavity that isolates the laminate, wherein a film thickness h of the piezoelectric thin film and a pitch p of a finger of the IDT electrode are selected such that a lamb wave is excited at a target frequency, the lamb wave making dispersibility of a sonic velocity v with respect to the film thickness h of the piezoelectric thin film small.
    Type: Application
    Filed: November 16, 2009
    Publication date: May 20, 2010
    Applicant: NGK Insulators, Ltd.
    Inventors: Tomoyoshi TAI, Masahiro SAKAI, Yukihisa OHSUGI
  • Devices and method of measuring a mass
    Patent number: 7140255
    Abstract: A device 1 for measuring a mass comprises a vibrator 2, driving means 3A, 3B, 3C, 3D for exciting a basic vibration in the vibrator 2, detecting means 4A, 4B for detecting a displacement of vibration in the vibrator 2 and an adsorption film 5 capable of adsorbing a substance for detection. The mass is measured based on a difference between a detected value of the displacement of vibration obtained from the detecting means 4A, 4B when the mass is not measured and a detected value of the displacement of vibration obtained from the detecting means 4A, 4B when the mass is measured.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: November 28, 2006
    Assignee: NGK Insulators, Ltd.
    Inventors: Yukihisa Ohsugi, Naotake Okada, Seiji Ishikawa
  • Devices and method of measuring a mass
    Publication number: 20050039532
    Abstract: A device 1 for measuring a mass comprises a vibrator 2, driving means 3A, 3B, 3C, 3D for exciting a basic vibration in the vibrator 2, detecting means 4A, 4B for detecting a displacement of vibration in the vibrator 2 and an adsorption film 5 capable of adsorbing a substance for detection. The mass is measured based on a difference between a detected value of the displacement of vibration obtained from the detecting means 4A, 4B when the mass is not measured and a detected value of the displacement of vibration obtained from the detecting means 4A, 4B when the mass is measured.
    Type: Application
    Filed: August 13, 2004
    Publication date: February 24, 2005
    Applicant: NGK Insulators, Ltd.
    Inventors: Yukihisa Ohsugi, Naotake Okada, Seiji Ishikawa