Patents by Inventor Masanori Kakehi

Masanori Kakehi 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 of joining waterproof vulcanized synthetic rubber sheets
    Patent number: 4404056
    Abstract: A method for joining waterproof vulcanized synthetic rubber sheets is described wherein a cold-vulcanizable adhesive tape having Mooney viscosity [ML.sub.1+5 (100.degree. C.)] of from 5 to 25 and an autoadhesion property, and which contains a rubbery polymer comprising (1) ethylene-propylene terpolymer, butyl rubber, or a blend of ethylene-propylene terpolymer and butyl rubber, (2) a vulcanizing agent, (3) a vulcanization accelerator, (4) an adhesive agent, and (5) a softening agent is placed between overlapped areas of the waterproof vulcanized synthetic rubber sheets, and said adhesive tape is cold-vulcanized to thereby join the sheets.
    Type: Grant
    Filed: February 25, 1981
    Date of Patent: September 13, 1983
    Assignee: Mitsuboshi Belting Ltd.
    Inventors: Masanori Kakehi, Yoshitaka Higashida, Kenzo Iwamoto, Hikaru Kano