Patents by Inventor Ki Doh

Ki Doh 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).

  • Ultrasound transducer manufactured by using micromachining process, its device, endoscopic ultrasound diagnosis system thereof, and method for controlling the same
    Patent number: 7982362
    Abstract: An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
    Type: Grant
    Filed: April 20, 2010
    Date of Patent: July 19, 2011
    Assignee: Olympus Medical Systems Corp.
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Akiko Mizunuma, Yukihiko Sawada, Takuya Imahashi, Takanao Fujimura, Ki Doh
  • Ultrasound Transducer Manufactured by Using Micromachining Process, its Device, Endoscopic Ultrasound Diagnosis System Thereof, and Method for Controlling the Same
    Publication number: 20100201222
    Abstract: An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
    Type: Application
    Filed: April 20, 2010
    Publication date: August 12, 2010
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Akiko Mizunuma, Yukihiko Sawada, Takuya Imahashi, Takanao Fujimura, Ki Doh
  • Ultrasound transducer manufactured by using micromachining process, its device, endoscopic ultrasound diagnosis system thereof, and method for controlling the same
    Patent number: 7728487
    Abstract: An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: June 1, 2010
    Assignee: Olympus Medical Systems Corp.
    Inventors: Hideo Adachi, Katsuhiro Wakabayashi, Akiko Mizunuma, Yukihiko Sawada, Takuya Imahashi, Takanao Fujimura, Ki Doh
  • ULTRASOUND TRANSDUCER AND ENDOSCOPIC ULTRASOUND DIAGNOSIS SYSTEM INCLUDING THE SAME
    Publication number: 20090076393
    Abstract: A micromachined ultrasound transducer including a plurality of ultrasound transducer cells each of which includes a substrate on which a bottom electrode is formed, and a membrane provided apart from the substrate and having an upper electrode formed thereon, said ultrasound transducer generating ultrasound with the membrane vibrating when voltage is applied between the bottom electrode and the upper electrode, comprises: a vibration propagation suppression unit suppressing propagation of vibration of said each ultrasound transducer cell to an adjacent ultrasound transducer cell.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 19, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hideo ADACHI, Katsuhiro WAKABAYASHI, Akiko MIZUNUMA, Yukihiko SAWADA, Takuya IMAHASHI, Takanao FUJIMURA, Ki DOH
  • ULTRASOUND TRANSDUCER MANUFACTURED BY USING MICROMACHINING PROCESS, ITS DEVICE, ENDOSCOPIC ULTRASOUND DIAGNOSIS SYSTEM THEREOF, AND METHOD FOR CONTROLLING THE SAME
    Publication number: 20090001853
    Abstract: An ultrasound transducer manufactured by using a micromachining process comprises: a first electrode into which a control signal for transmitting ultrasound is input; a substrate on which the first electrode is formed; a second electrode that is a ground electrode facing the first electrode with a prescribed space between the first and second electrodes; a membrane on which the second electrode is formed and which vibrates and generates the ultrasound when a voltage is applied between the first and second electrodes; a piezoelectric film contacting the membrane; and a third electrode electrically continuous to the piezoelectric film.
    Type: Application
    Filed: September 3, 2008
    Publication date: January 1, 2009
    Applicant: OLYMPUS MEDICAL SYSTEMS CORP.
    Inventors: Hideo ADACHI, Katsuhiro WAKABAYASHI, Akiko MIZUNUMA, Yukihiko SAWADA, Takuya IMAHASHI, Takanao FUJIMURA, Ki DOH