Patents by Inventor Fumiaki NISHIURA

Fumiaki NISHIURA 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).

  • METHOD FOR PRODUCING POLYISOPRENE
    Publication number: 20180291127
    Abstract: A method for producing polyisoprene comprising: polymerizing isoprene by using an isoprene-containing composition containing isoprene and an oxygen-containing neutral compound, and a polymerization catalyst composition containing a rare earth element compound and an organometallic compound, wherein: —a compounding amount of the organometallic compound is 0.6 to 3.0 parts by mass per 100 parts by mass of the isoprene-containing composition.
    Type: Application
    Filed: April 28, 2016
    Publication date: October 11, 2018
    Applicants: BRIDGESTONE CORPORATION, Ajinomoto Co., Inc.
    Inventors: Fumiaki NISHIURA, Yosuke NISHIO, Hiroaki RACHI, Satoshi HIOKI