{
  "$type": "site.standard.document",
  "description": "A heavy duty pneumatic tire includes a tread surface having, on at least a section thereof, a plurality of circumferential-direction grooves extending along a tread circumferential line and land portions defined either by the circumferential-direction grooves or by the circumferential-direction…",
  "path": "/patents/940868",
  "publishedAt": "2016-07-06T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C11/0327",
    "BRIDGESTONE CORP [JP]"
  ],
  "textContent": "A heavy duty pneumatic tire includes a tread surface having, on at least a section thereof, a plurality of circumferential-direction grooves extending along a tread circumferential line and land portions defined either by the circumferential-direction grooves or by the circumferential-direction grooves and tread ground contact edges. The land portions include at least one partitioned land portion in which a plurality of narrow width-direction grooves extending in a tread width direction are provided. A prescribed internal pressure is at least 750 kPa. A depth of the circumferential-direction grooves, represented by H, satisfies a relationship 7 mm ¤ H ¤ 13 mm. A tread circumferential-direction spacing of the narrow width-direction grooves, represented by W, satisfies a relationship 5 mm ¤ W ¤ 20 mm.",
  "title": "HEAVY DUTY PNEUMATIC TIRE"
}