Patents by Inventor Shiroh Ozasa

Shiroh Ozasa 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).

  • Ultrasonic transmitting/receiving apparatus and scanning sonar employing same
    Patent number: 7289390
    Abstract: An ultrasonic apparatus is disclosed that includes a transducer having a plurality of transducer elements, a controller operatively connected to the transducer and driving the transducer elements to produce a first ultrasonic transmitting beam having a first frequency and a second ultrasonic transmitting beam having a second frequency; and a processor operatively connected to said transducer for forming and moving reception beams to receive echo signals and extracting frequency components corresponding to said first ultrasonic transmitting beam and said second ultrasonic transmitting beam.
    Type: Grant
    Filed: July 19, 2004
    Date of Patent: October 30, 2007
    Assignee: Furuno Electric Company, Limited
    Inventors: Yasushi Nishimori, Minoru Handa, Shiroh Ozasa
  • Ultrasonic transmitter, ultrasonic transceiver and sonar apparatus
    Patent number: 7215599
    Abstract: An ultrasonic transmitter generates a reference signal based on a clock signal of a specific frequency and a control signal made up of binary values 0 and 1 for controlling how the level (High or Low) of a carrier drive signal should change, and generates an analog signal constituting the carrier drive signal by pulse-duration-modulating the reference signal. Produced from the carrier drive signal, a driving pulse signal is shaped into a curved waveform having a gradually rising leading edge and a gradually falling trailing edge as the amplitude of the carrier drive signal is gradually increased and decreased based on the control signal.
    Type: Grant
    Filed: November 25, 2003
    Date of Patent: May 8, 2007
    Assignee: Furuno Electric Co., Ltd.
    Inventors: Yasushi Nishimori, Minoru Handa, Shiroh Ozasa, Masaru Nishida, Hiromune Matsumoto
  • Ultrasonic transmitting/receiving apparatus and scanning sonar employing same
    Publication number: 20060013066
    Abstract: An ultrasonic apparatus is disclosed that includes a transducer having a plurality of transducer elements, a controller operatively connected to the transducer and driving the transducer elements to produce a first ultrasonic transmitting beam having a first frequency and a second ultrasonic transmitting beam having a second frequency; and a processor operatively connected to said transducer for forming and moving reception beams to receive echo signals and extracting frequency components corresponding to said first ultrasonic transmitting beam and said second ultrasonic transmitting beam.
    Type: Application
    Filed: July 19, 2004
    Publication date: January 19, 2006
    Inventors: Yasushi Nishimori, Minoru Handa, Shiroh Ozasa
  • Ultrasonic transmitter, utrasonic transceiver and sonar apparatus
    Publication number: 20040184351
    Abstract: An ultrasonic transmitter generates a reference signal based on a clock signal of a specific frequency and a control signal made up of binary values 0 and 1 for controlling how the level (High or Low) of a carrier drive signal should change, and generates an analog signal constituting the carrier drive signal by pulse-duration-modulating the reference signal. Produced from the carrier drive signal, a driving pulse signal is shaped into a curved waveform having a gradually rising leading edge and a gradually falling trailing edge as the amplitude of the carrier drive signal is gradually increased and decreased based on the control signal.
    Type: Application
    Filed: November 25, 2003
    Publication date: September 23, 2004
    Inventors: Yasushi Nishimori, Minoru Handa, Shiroh Ozasa, Masaru Nishida, Hiromune Matsumoto