Golf Club And Golf Club Head Structures Having Nano Coating

Abstract

Golf club and golf club head structures having a nano coating are presented. In some examples, the golf club heads may be formed of two or more parts. The two or more parts or portions may be formed of different materials or materials having different weights or densities to manipulate the center of gravity of the club head, overall weight of the club head, etc. The two or more parts of the golf club head may be covered with a nano coating to provide the appearance of a uniform, one-piece golf club head. In some examples, all or substantially all of the golf club head may be covered with the nano coating.

What is claimed is: 
     
         1 . A golf club head, comprising:
 a first golf club head body portion formed of a first material, the first golf club head body portion forming a lower portion of the golf club head and including a sole of the golf club head;   a second golf club head body portion formed of a second material, the second material being a lighter weight material than the first material, the second golf club head body portion forming an upper portion of the golf club head body and being positioned vertically above and in contact with the first golf club head body portion;   a connector region including:
 a first portion of a connector connected to the first golf club head body portion, and 
 a second portion of the connector connected to the second golf club head body portion and configured to mate with the first portion of the connector; and 
   a nano coating covering the golf club head including covering the first golf club head body portion and the second golf club head body portion.   
     
     
         2 . The golf club head of  claim 1 , wherein the second material is a different type of material than the first material. 
     
     
         3 . The golf club head of  claim 1 , the first material and the second material are the same type of material and the first material has a higher density than the second material. 
     
     
         4 . The golf club head of  claim 1 , wherein the first portion of the connector includes a generally planar upper surface of the first golf club head body portion and the second portion of the connector includes a generally planar lower surface of the second golf club head body portion. 
     
     
         5 . The golf club head of  claim 4 , wherein the generally planar upper surface is bonded to the generally planar lower surface. 
     
     
         6 . The golf club head of  claim 1 , wherein the first portion of the connector includes a plurality of protrusions extending upward from a top surface of the first golf club head body portion and the second portion of the connector includes a plurality of recesses formed in a bottom surface of the second golf club head body portion. 
     
     
         7 . The golf club head of  claim 1 , wherein the nano coating covers substantially the entire golf club head. 
     
     
         8 . The golf club head of  claim 1 , further including a weighted member. 
     
     
         9 . The golf club head of  claim 8 , wherein the weighted member is formed of third material different from first material and second material. 
     
     
         10 . The golf club head of  claim 9 , wherein the nano coating covers weighted member. 
     
     
         11 . The golf club head of  claim 1 , wherein the nano coating provides appearance of single piece golf club head. 
     
     
         12 . A golf club head, comprising:
 a golf club head body having a first golf club head body portion formed of a first material and a second golf club head body portion formed of a second material different from the first material; and   a nano coating covering substantially all of the first golf club head body portion and the second golf club head body portion to provide an appearance of a golf club head formed of a single material.   
     
     
         13 . The golf club head of  claim 12 , wherein the nano coating covers substantially all of a front, rear, crown and sole of the golf club head. 
     
     
         14 . The golf club head of  claim 13 , wherein the first golf club head body portion is positioned vertically below the second golf club head body portion. 
     
     
         15 . The golf club head of  claim 12 , wherein the first material is a higher density material than the second material. 
     
     
         16 . The golf club head of  claim 15 , wherein the first material is a polymer and the second material is a polymer. 
     
     
         17 . The golf club head of  claim 16 , wherein the polymer of the first material is different from the polymer of the second material. 
     
     
         18 . The golf club head of  claim 1 , further including a weight member connected to first golf club head body portion and having the nano coating covering the weight member. 
     
     
         19 . The golf club head of  claim 1 , wherein the golf club head is an iron-type golf club head. 
     
     
         20 . The golf club head of  claim 1 , further including a shaft connected to the golf club head to form a golf club. 
     
     
         21 . A method of forming a golf club head, comprising:
 forming a first portion of a golf club head body of a first material, the first portion of the golf club head body forming a lower portion of the golf club head body and including a first connector region on a top surface of the first portion of the golf club head body;   forming a second portion of the golf club head body of a second material different from the first material, the second portion of the golf club head body forming an upper portion of the golf club head body and including a second connector region formed in a bottom surface of the second portion and configured to mate with first connector region formed in the top surface of the first portion;   connecting the first portion of the golf club head body to the second portion of the golf club head body via first and second connector regions; and   coating the golf club head body, including the first portion and the second portion, with a nano coating.   
     
     
         22 . The method of  claim 21 , wherein coating the golf club head body with a nano coating provides an appearance of a golf club head formed of a single material. 
     
     
         23 . The method of  claim 22 , wherein coating the golf club head body with a nano coating provides an appearance of a forged golf club head. 
     
     
         24 . The method of  claim 21 , wherein the first material has a greater weight than the second material. 
     
     
         25 . The method of  claim 21 , wherein the first material has a greater density than the second material. 
     
     
         26 . The method of  claim 21 , wherein the first material and the second material are both polymers. 
     
     
         27 . The method of  claim 21 , wherein forming the first portion of the golf club head body and forming the second portion of the golf club head body includes forming the first portion and the second portion in a two-shot molding process. 
     
     
         28 . The method of  claim 27 , wherein connecting the first portion to the second portion includes bonding the first connector region to the second connector region. 
     
     
         29 . The method of  claim 28 , wherein bonding the first connector region to the second connector region is performed during the two-shot molding process. 
     
     
         30 . The method of  claim 21 , wherein connecting the first portion to the second portion includes positioning second portion vertically above the first portion and positioning the first connector region in contact with the second connector region. 
     
     
         31 . The method of  claim 21 , further including forming a weighted member and connecting the weighted member to the first portion of the golf club head body. 
     
     
         32 . The method of  claim 31 , wherein coating the golf club head body with the nano coating includes coating the weighted member with the nano coating. 
     
     
         33 . The method of  claim 21 , further including connecting the golf club head to a shaft to form a golf club. 
     
     
         34 . A method of forming a golf club, comprising:
 forming a golf club head body, forming the golf club head body including:
 forming a first golf club head body portion of a first material; and 
 forming a second golf club head body portion of a second material different from the first material, the second golf club head body portion being vertically above and in contact with the first golf club head body portion; 
   coating the substantially all of the golf club head body with a nano coating; and   connecting the coated golf club head body to a shaft.   
     
     
         35 . The method of  claim 34 , wherein the first material and the second material are the same type of material but have different material properties. 
     
     
         36 . The method of  claim 34 , wherein the first material and the second material are different types of material. 
     
     
         37 . The method of  claim 34 , wherein the first material is a polymer and the second material is a polymer and the first material polymer has a higher density than the second material polymer. 
     
     
         38 . The method of  claim 34 , wherein forming the golf club head body includes forming the first golf club head body portion and the second golf club head body portion via a two-shot molding process. 
     
     
         39 . The method of  claim 34 , wherein coating substantially all of the golf club head with the nano coating includes coating a front, a rear, a crown and a sole with the nano coating. 
     
     
         40 . A golf club head, comprising:
 a golf club head body having a first golf club head front body portion formed of a first material and a second golf club head rear body portion formed of a second material different from the first material;   wherein the first golf club head front body portion is positioned adjacent the second golf club head rear body portion; and   a nano coating covering substantially all of the first golf club head body portion and the second golf club head body portion to provide an appearance of a golf club head formed of a single material.   
     
     
         41 . The golf club head of  claim 40 , wherein the nano coating covers substantially all of a front, rear, crown and sole of the golf club head. 
     
     
         42 . The golf club head of  claim 40 , wherein the polymer of the first material is different from the polymer of the second material. 
     
     
         45 . The golf club head of  claim 40 , further including a weight member connected to first golf club head body portion and having the nano coating covering the weight member. 
     
     
         46 . The golf club head of  claim 40 , wherein the golf club head is a wood-type golf club head. 
     
     
         47 . The golf club head of  claim 40 , wherein the golf club head is an iron-type golf club head. 
     
     
         48 . The golf club head of  claim 40 , further including a shaft connected to the golf club head to form a golf club. 
     
     
         49 . The golf club head of  claim 40 , wherein the first golf club head front body portion forms a cup-faced portion having a hollow interior. 
     
     
         50 . The golf club head of  claim 40 , wherein the hollow interior of the first golf club head front body portion is at least partially coated with a nano coating.