Lyon & Lyon
Toothed belt
 A toothed elastomeric belt for use in a power transmission system includes teeth having a cross-sectional configuration that includes a cycloidal convex curve that extends from the tooth tip and is smoothly connected to the bottom land between adjacent teeth by an arcuate fillet. 
Honda Giken Kogyo Kabushiki Kaisha
F
F16G
inventional
Nobuhiro Junichi Masuhiro Hidenori
Saito Araki Saito Tezuka