IP Library Granted Patent US 7,175,539
Granted Patent B2
US 7,175,539 · App. 10/208,870 · Granted Feb 13, 2007

Golf club head

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Quick Facts
Patent No.
US 7,175,539
App. No.
10/208,870
Granted
Feb 13, 2007
Kind
B2
Abstract

A golf club head including a basal body having a metallic surface, and a multilayer coating deposited on the metallic surface, wherein the multilayer coating includes a clear first layer deposited on the metallic surface and a colored clear second layer deposited on the clear first layer, whereby the basal body is visible through the multilayer coating. Preferably, the basal body has a mirror finish surface, satin finish surface, orange peel finish surface or the like under the multilayer coating. The multilayer coating further includes an iridescent layer deposited on the colored clear layer, wherein the iridescent layer includes an iridescent material which is dispersed therein while maintaining a certain degree of transparence.

Claims (20)

1. A golf club head comprising

a basal body having a metallic surface and a multilayer coating provided on the metallic surface, wherein

the multilayer coating comprises

a clear first layer disposed on the metallic surface,

a colored clear second layer disposed on the clear first layer, and

an iridescent third layer formed on the colored clear second layer by applying an iridescent paint comprising a solvent, a transparent colorless synthetic resin and an iridescent material, the iridescent material in the iridescent third layer dispersed to maintain a certain degree of transparence of the iridescent third layer, whereby

the metallic surface of the basal body is visible through the multilayer coating.

2. The golf club head according to claim 1 , wherein the multilayer coating comprises said first, second and third layers and further an outermost clear layer whereby the metallic surface of the basal body is visible through the multilayer coating.

3. The golf club head according to claim 1 or 2 , wherein the basal body has a mirror finish surface under the multilayer coating.

4. The golf club head according to claim 1 or 2 , wherein the basal body has a satin finish surface under the multilayer coating.

5. The golf club head according to claim 1 or 2 , wherein the basal body has a orange peel finish surface under the multilayer coating.

6. The golf club head according to claim 1 , wherein

the iridescent material is at least one of colored specular aluminum flakes, specular metal flakes which surfaces are resin-treated, mica flakes, coated with a titanium oxide, and flakes of mica itself, and

the average size of the flake is in the range of from about 10 to about 100 microns.

7. The golf club head according to claim 1 , wherein the iridescent material is a chromatic polarizing material.

8. The golf club head according to claim 1 , wherein the transparent colorless synthetic resin is at least one of a polyester, a polyurethane, an epoxy and an acrylic resin.

9. A golf club head according to claim 1 , wherein the iridescent paint does not contain a colorant.

10. The golf club head of claim 1 , wherein the first layer has a thickness of from 5 to 40 microns.

11. The golf club head of claim 1 , wherein the colored clear second layer has a thickness of from 10 to 50 microns.

12. The golf club head of claim 1 , wherein the iridescent third layer has a thickness of 10 to 40 microns.

Assignments (4)
MERGER Recorded Apr 17, 2018
From: DUNLOP SPORTS CO. LTD.
To: SUMITOMO RUBBER INDUSTRIES, LTD.
Reel/Frame 045959/0204 →
CHANGE OF NAME Recorded Apr 12, 2018
From: SRI SPORTS LIMITED
To: DUNLOP SPORTS CO. LTD.
Reel/Frame 045932/0024 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 16, 2005
From: SUMITOMO RUBBER INDUSTRIES, LTD.
To: SRI SPORTS LIMITED
Reel/Frame 016561/0471 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 1, 2002
From: SANO, YOSHINORI
To: SUMITOMO RUBBER INDUSTRIES, LTD.
Reel/Frame 013162/0546 →