Golf club
AssigneeDunlop Sports Co. Ltd.
InventorsMasahide Onuki, Masaru Kono, Tomio Kumamoto
Life of this patent
Estimating the term…
Abstract
A golf club c1 has a base part 2, a laser discoloration layer 6, and a protection layer 8. The laser discoloration layer 6 is provided on the outer side of the base part 2. The protection layer 8 is provided on the outer side of the laser discoloration layer 6. The protection layer 8 has laser beam transparency. The laser discoloration layer 6 can be discolored by irradiation of a laser beam. Preferably, an undercoat layer 4 is further provided between the base part 2 and the laser discoloration layer 6. Preferably, the undercoat layer 4 is not discolored by the laser beam. Preferably, the laser discoloration layer 6 includes abase material resin and a laser discoloration material.
Claims10
A golf club comprising a base part constituting a portion of the golf club, a laser discoloration layer, and a protection layer,
- wherein the laser discoloration layer is provided on the outer side of the base part;
- the protection layer is provided on the outer side of the laser discoloration layer;
- the protection layer has laser beam transparency;
- and
- the laser discoloration layer can be discolored by irradiation of a laser beam,
- wherein the laser discoloration layer comprises a base material resin and a laser discoloration material.
A golf club comprising a base part constituting a portion of the golf club, a laser discoloration layer, and a protection layer,
- wherein the laser discoloration layer is provided on the outer side of the base part;
- the protection layer is provided on the outer side of the laser discoloration layer;
- the protection layer has laser beam transparency;
- the laser discoloration layer can be discolored by irradiation of a laser beam;
- and
- an undercoat layer provided between the base part and the laser discoloration layer, wherein the undercoat layer is not discolored by the laser beam.
A golf club comprising a base part constituting a portion of the golf club, a laser discoloration layer, and a protection layer,
- wherein the laser discoloration layer is provided on the outer side of the base part;
- the protection layer is provided on the outer side of the laser discoloration layer;
- the protection layer has laser beam transparency;
- and
- the laser discoloration layer can be discolored by irradiation of a laser beam,
- wherein the base part is a fiber-reinforced resin.
Dependencies are inferred from the claim text.