Patents by Inventor Osamu Tadai

Osamu Tadai 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).

  • System for determining the adiabatic stress derivative of temperature for rock
    Patent number: 10215723
    Abstract: A system for determining an adiabatic stress derivative of temperature for rock includes two pressure vessels containing a rock sample unit. The two pressure vessels are both filled with silicon oil. Bottoms of the pressure vessels are communicated with each other through an oil pipe. Each of the pressure vessels is communicated with a booster pump through an oil inlet pipe, and is provided with a pressure relief pipe at its top. Each of the oil pipe, the oil inlet pipes, and the pressure relief pipes is respectively provided with a drain valve. Each of the oil inlet pipes is respectively provided with a pressure sensor. Each of the rock sample units is respectively encapsulated in a rubber sleeve immersed in the silicone oil, and each rock sample is provided with temperature sensors on a surface and in a center thereof.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: February 26, 2019
    Assignee: SOUTH CHINA SEA INSTITUTE OF OCEANOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Xiaoqiu Yang, Weiren Lin, Osamu Tadai, Xin Zeng, Xiaobin Shi, Ziying Xu
  • SYSTEM FOR DETERMINING THE ADIABATIC STRESS DERIVATIVE OF TEMPERATURE FOR ROCK
    Publication number: 20180038812
    Abstract: A system for determining an adiabatic stress derivative of temperature for rock includes two pressure vessels containing a rock sample unit. The two pressure vessels are both filled with silicon oil. Bottoms of the pressure vessels are communicated with each other through an oil pipe. Each of the pressure vessels is communicated with a booster pump through an oil inlet pipe, and is provided with a pressure relief pipe at its top. Each of the oil pipe, the oil inlet pipes, and the pressure relief pipes is respectively provided with a drain valve. Each of the oil inlet pipes is respectively provided with a pressure sensor. Each of the rock sample units is respectively encapsulated in a rubber sleeve immersed in the silicone oil, and each rock sample is provided with temperature sensors on a surface and in a center thereof.
    Type: Application
    Filed: March 9, 2016
    Publication date: February 8, 2018
    Applicant: SOUTH CHINA SEA INSTITUTE OF OCEANOLOGY, CHINESE ACADEMY OF SCIENCES
    Inventors: Xiaoqiu Yang, Weiren Lin, Osamu Tadai, Xin Zeng, Xiaobin Shi, Ziying Xu