Patents by Inventor Shintaro Kuroiwa

Shintaro Kuroiwa 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).

  • Lubricating oil blend resistant to ionizing radiation
    Patent number: 4664829
    Abstract: An oil blend having resistance to ionizing radiation comprising the following components is herein disclosed:A. 25 to 75 wt % of 0-70 wt % of o-(m-phenoxyphenoxy)diphenyl and 100-30 wt % of m-(m-phenoxyphenoxy)diphenyl; andB. 75 to 25 wt % of a monoalkyldiphenyl ether or dialkyldiphenyl ether.This oil blend has a pour point of 0.degree. C. or below and has a G-value of 0.1 or lower for the evolution of decomposition gases under irradiation with ionizing radiation. Said ethers have 10 to 20 carbon atoms in the alkyl moiety.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: May 12, 1987
    Assignees: Japan Atomic Energy Research Institute, Matsumura Oil Research Corporation
    Inventors: Kazuo Arakawa, Naohiro Hayakawa, Kenzo Yoshida, Naoyuki Tamura, Hiroshi Nakanishi, Tetsuya Yagi, Shintaro Kuroiwa