Patent application number | Description | Published |
20090320982 | PNEUMATIC TIRE - To enhance cornering performance on each road surface and improve steering stability while ensuring traction performance and breaking performance of a pneumatic tire on a snow road or off-road. | 12-31-2009 |
20110162768 | PNEUMATIC TIRE - To significantly improve performances on ice by optimizing a tread pattern. | 07-07-2011 |
20110297282 | PNEUMATIC TIRE - To improve water evacuation property while preventing uneven wear, as well as to significantly improve the on-ice/snow performances by optimizing a tread pattern. | 12-08-2011 |
20120125501 | PNEUMATIC TIRE - In addition to dramatic improvement of on-ice performance, to balance with other performances. | 05-24-2012 |
20120325384 | PNEUMATIC TIRE - A pneumatic tire includes two circumferential main grooves within a ground-contact width of a tread, and a group of polygonal blocks between the two circumferential main grooves. The group of polygonal blocks includes a plurality of polygonal blocks arranged in at least two longitudinal rows in a tire circumferential direction and a plurality of transverse rows in a tire width direction. Each polygonal block has not less than five sides, and is defined by narrow grooves. The polygonal blocks in the adjacent longitudinal rows are arranged so as to be staggered from each other in the tire circumferential direction. The group of polygonal blocks has a widthwise center that is positioned within a 50% width region of the ground-contact width of the tread across a tire equatorial plane. | 12-27-2012 |
20120325385 | PNEUMATIC TIRE - Provided is a pneumatic tire in which a polygonal block group is provided between two circumferential main grooves in a tread ground contact width, the polygonal block group comprising a plurality of polygonal blocks with five or more sides which are demarcated by thin grooves and arranged in at least two longitudinal rows and a plurality of lateral rows, the longitudinal rows being arranged so that the polygonal blocks included in adjacent longitudinal rows differ in phase from each other in a tire circumferential direction; side block rows are provided, one on each of the two sides in the tire width direction of the polygonal block group, the side block rows comprising a plurality of side blocks which are demarcated by the circumferential main grooves, lateral grooves, and the thin grooves and arranged in the tire circumferential direction; and a length in the tire circumferential direction of a first side block included in a first side block row provided on one side is larger than the length in the tire circumferential direction of a second side block included in a second side block row provided on the other side. | 12-27-2012 |
20130133798 | TIRE - In a tread part ( | 05-30-2013 |
20150224826 | PNEUMATIC TIRE - The present invention provides a pneumatic tire capable of exhibiting improved on-snow cornering performance on a snowy road and improved on-ice cornering performance on an icy road surface. Specifically, the pneumatic tire comprises: a tread portion ( | 08-13-2015 |