Patents by Inventor Kiyonori Sasaoka

Kiyonori Sasaoka 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).

  • Pneumatic tire with carcass structure for increased sidewall rigidity
    Patent number: 5479977
    Abstract: A pneumatic tire having an improved carcass structure capable of increasing the sidewall rigidity, the tire (1) comprising a carcass (8) composed of an inner carcass ply (9) and an outer carcass ply (10), the inner carcass ply having a pair of edges turned up around the bead cores (5) from the axially inside to outside of the tire, each turned up portion thereof extending radially outwardly beyond the maximum tire width point (B), a bead apex (6) disposed between the main portion and the turned up portion, the outer carcass ply having a pair of edges each disposed between the bead apex and each turned up portion of the inner carcass ply, the edges of the outer carcass ply terminated radially outward of the radially inner end of the bead core, each sidewall portion provided with at least one steel cord reinforcing layer (11a, 11b, 11c) made of parallel steel cords.
    Type: Grant
    Filed: October 26, 1993
    Date of Patent: January 2, 1996
    Assignee: Sumitomo Rubber Industries, Ltd.
    Inventors: Akiyoshi Tamano, Motoo Hayashi, Kiyonori Sasaoka, Kazuya Suzuki, Hirotsugu Hasegawa