Patents by Inventor Akinobu Nagai

Akinobu Nagai 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).

  • Polyphenylene ether and method for producing the same
    Patent number: 8637631
    Abstract: A polyphenylene ether which has a content of a metal magnetic material of 0.001 ppm or higher and lower than 1.000 ppm.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 28, 2014
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Tomohiro Kondo, Akinobu Nagai, Akira Mitsui
  • POLYPHENYLENE ETHER AND METHOD FOR PRODUCING THE SAME
    Publication number: 20120309925
    Abstract: [Problem to be Solved] A polyphenylene ether is provided which can effectively suppress the occurrence of black foreign matters, and is excellent in the electric characteristics and the appearance characteristic. [Solution] A polyphenylene ether is provided which has a content of a metal magnetic material of 0.001 ppm or higher and lower than 1.000 ppm.
    Type: Application
    Filed: February 24, 2011
    Publication date: December 6, 2012
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomohiro Kondo, Akinobu Nagai, Akira Mitsui