Multi-piece solid golf ball
US6743122B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1999 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Aug 20, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0076
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
In a multi-piece solid golf ball comprising a solid core, an enclosure layer, an intermediate layer, and a cover, the enclosure layer and the intermediate layer each have a Shore D hardness of 10-50, the enclosure layer's Shore D hardness≦the intermediate layer's Shore D hardness≦the cover's Shore D hardness, and the deflections under a load of 100 kg of the solid core, a first spherical body consisting of the solid core and the enclosure layer, a second spherical body consisting of the solid core, the enclosure layer and the intermediate layer, and the ball are controlled to fall in specific ranges. The cover is formed of a cover stock comprising an ionomer resin and an inorganic filler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.