Patents by Inventor Ryuichi Kawamura

Ryuichi Kawamura 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).

  • Vibration type gas densitometer
    Patent number: 6029501
    Abstract: A vibration gas density meter provided with a cylindrical resonator, a cylinder block that incorporates the above cylindrical resonator concentrically and has one end of the cylindrical resonator fixed to itself, and a case which concentrically incorporates the above cylinder block and supports both ends of the cylinder block, further comprising first and second elastic elements which are provided between both end faces of the cylinder block and the case respectively, and through which the cylinder block is supported by the case in the direction of cylindrical axis, sealing the gaps between the cylinder block and the case as well, and third and fourth elastic elements which are provided between both parts of the outer cylindrical surface on both end face sides of the above cylinder block and the case respectively and through which the cylinder block is supported by the case in the radial direction, sealing the gaps between the cylinder block and the case as well.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: February 29, 2000
    Assignee: Yokogawa Electric Corporation
    Inventors: Hiroshi Nishino, Junichi Suzuki, Shigeo Yasuda, Mitsuhiko Sasaki, Ryuichi Kawamura