Patents by Inventor Yasumi Komai

Yasumi Komai 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).

  • Carbon blacks and rubber compositions containing the carbon blacks
    Patent number: 5093407
    Abstract: Carbon blacks having a N.sub.2 SA of from at least about 150 m.sup.2 /g to about 180 m.sup.2 /g, a DBP of about 125 cc/100 g or less, a Dmode of 70 nm or less, a N.sub.2 SA/I.sub.2 No. ratio of 0.85 to 0.98 and a .DELTA.DBP less than 210 cc/100 g which, when incorporated into rubber compositions, impart increased abrasion resistance, heterogenous abrasion resistance and grip performance properties. Also disclosed are rubber composition incorporating the novel carbon blacks.
    Type: Grant
    Filed: September 10, 1990
    Date of Patent: March 3, 1992
    Assignee: Cabot Corporation
    Inventors: Yasumi Komai, Mizuo Soeda