Patents Assigned to Rion Company Ltd.
  • Acoustic capacity, volume, and surface area measurement method
    Patent number: 8104336
    Abstract: An acoustic capacity measurement method for finding capacity of a container or object by removing effect of the surface area without using an approximate expression of acoustic impedance is provided. The acoustic capacity measurement method for finding capacity of a container includes a pressure change ratio calculating step, a rotation step, an oblique coordinate transformation step, and a capacity calculating step.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: January 31, 2012
    Assignees: Kukamoto University, Rion Company Ltd., Munehiro Date
    Inventors: Ippei Torigoe, Takashi Segami, Munehiro Date