Multi-piece solid golf ball
US6354966B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2000 |
| Grant date | Mar 12, 2002 |
| Priority date | — |
| Expiry date | Sep 15, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA63B37/0076
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A multi-piece solid golf ball has rebound characteristics equal to conventional two-piece solid golf ball when hitting at high head speed, and better rebound characteristics when hitting at low head speed. This multi-piece solid golf ball has a core with an inner layer outer layer on the inner layer, and at least one layer of cover on the core, the inner layer core having an elastic modulus of 50 to 200 MPa, the outer layer core having at least one layer of low elastic modulus with elastic modulus lower than the inner layer core by 15 to 100 MPa; at least one layer of the lowest elastic modulus layer in the core has a total thickness of 0.2 to 5.0 mm and is placed from 6.5 to 20.5 mm away from the core center point with diameter 37 to 41 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.