{
  "$type": "site.standard.document",
  "description": "A pneumatic tire includes a tread portion 2. The tread portion 2 has a ground-contact surface in which a center portion in a tire axial direction projects outward in a tire radial direction with respect to each tread end Te. A band layer 8 including a band cord 10 is included inside the tread…",
  "path": "/patents/1399954",
  "publishedAt": "2025-01-29T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C9/2204",
    "SUMITOMO RUBBER IND [JP]"
  ],
  "textContent": "A pneumatic tire includes a tread portion 2. The tread portion 2 has a ground-contact surface in which a center portion in a tire axial direction projects outward in a tire radial direction with respect to each tread end Te. A band layer 8 including a band cord 10 is included inside the tread portion 2. The band cord 10 is a steel cord including a plurality of steel filaments 12. A filament occupancy ratio Fs of the band cord 10 disposed closest to the tread end Te in the band layer 8 is 0.15 to 0.50. A product of an average number Ea of the band cords 10 arranged in the band layer 8 per 5 cm in a tire width direction (cords/5 cm) and a total ΣSf of cross-sectional areas of the plurality of steel filaments 12 is not less than 5.",
  "title": "PNEUMATIC TIRE"
}