Abstract: A golf club head including a crown, a sole, a hosel, a face and a flexure. The flexure provides compliance during an impact between the golf club head and a golf ball, and is tuned to vibrate, immediately after impact, at a predetermined frequency.

Abstract: A golf club that utilizes multiple materials to achieve improved performance is disclosed herein. More specifically, the present invention relates to a golf club that utilizes different materials to construct different portions of the iron type golf club head allowing weight to be removed from portions of the golf club head that doesn't require such weighting. The current invention utilizes a lightweight material to form a blade portion of the golf club head while utilizing a standard steel material to form the hosel portion of the golf club head to allow the malleability characteristics of a golf club head to be maintained. The weight saved from the lightweight material used to create the blade portion can then be used to create a sole insert that is made out of a dense and heavy material to improve the CG and MOI characteristics of the golf club head to dramatically improve the performance of the golf club head.

Abstract: An iron-type golf club including a golf club head having improved mass distribution characteristics. The golf club includes a golf club head that is constructed from multiple pieces and that has a multi-material construction.

Abstract: A golf club including a golf club head having improved mass distribution characteristics. The golf club includes a golf club head that is constructed multiple materials and includes a body member, a mass member, and an interface that allows the mass member to be coupled to the body member.

Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face that forms a pocket, wherein the pocket is filled with a secondary material having a lower density to improve the performance of the golf club head. The multi-material face disclosed in accordance with the present invention may generally have a characteristic time slope of greater than about 5 and less than about 50, wherein the characteristic time slope is determined based on the various data points collected according to the United States Golf Association's (USGA's) Characteristic Time (CT) test.

Abstract: An improved striking face of a golf club head and a method of manufacturing thereof is disclosed herein. More specifically, the present invention discloses an improved method of stamped forging variable face geometry onto the rear surface of a striking face from a frontal portion of the striking face; wherein the improved process allows for more precise finished parts with less need for complicated machining. The resulting striking face of a golf club head comprises of a substantially planar frontal surface and a substantially non-planar rear surface, wherein the substantially non-planar rear surface is created via a stamped forging process while the substantially planar frontal surface is created via a machining process.

Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face that forms a pocket, wherein the pocket is filled with a secondary material having a lower density to improve the performance of the golf club head. The multi-material face disclosed in accordance with the present invention may generally have a characteristic time slope of greater than about 5 and less than about 50, wherein the characteristic time slope is determined based on the various data points collected according to the United States Golf Association's (USGA's) Characteristic Time (CT) test.

Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face that forms a pocket, wherein the pocket is filled with a secondary material having a lower density to improve the performance of the golf club head. The multi-material face disclosed in accordance with the present invention may generally have an inter laminar shear strength of greater than about 60 MPa, most preferably greater than about 60 MPa and less than about 145 MPa.

Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face that forms a pocket, wherein the pocket is filled with a secondary material having a lower density to improve the performance of the golf club head. The multi-material face disclosed in accordance with the present invention may generally have a characteristic time slope of greater than about 5 and less than about 50, wherein the characteristic time slope is determined based on the various data points collected according to the United States Golf Association's (USGA's) Characteristic Time (CT) test.

Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face that forms a pocket, wherein the pocket is filled with a secondary material having a lower density to improve the performance of the golf club head. The multi-material face disclosed in accordance with the present invention may generally have a characteristic time slope of greater than about 5 and less than about 50, wherein the characteristic time slope is determined based on the various data points collected according to the United States Golf Association's (USGA's) Characteristic Time (CT) test.

Abstract: A golf club head with an improved face insert is disclosed herein. More specifically, the present invention discloses a golf club head wherein the face insert has a cavity near the top surface of the face insert that extends vertically downward towards the bottom surface of the face insert while terminating short of the bottom surface. The face insert having the cavity serves to remove unnecessary weight from the upper surface weight of the face insert; while the cavity that terminates short of the bottom surface yields a solid face insert near the bottom surface to preserve the structural integrity of the face insert where the golf club head impacts a golf ball. The cavity created within the face insert may be filled in with a lightweight material that helps further maintain the structural integrity of the entire face insert while still removing unnecessary weight from the face insert.

Abstract: A golf club that utilizes multiple materials to achieve improved performance is disclosed herein. More specifically, the present invention relates to a golf club that utilizes different materials to construct different portions of the iron type golf club head allowing weight to be removed from portions of the golf club head that doesn't require such weighting. The current invention utilizes a lightweight material to form a blade portion of the golf club head while utilizing a standard steel material to form the hosel portion of the golf club head to allow the malleability characteristics of a golf club head to be maintained. The weight saved from the lightweight material used to create the blade portion can then be used to create a sole insert that is made out of a dense and heavy material to improve the CG and MOI characteristics of the golf club head to dramatically improve the performance of the golf club head.

Abstract: A co-forged iron type golf club is disclosed. More specifically, the present invention discloses a co-forged iron type golf club with the body portion made out of a first material and at least one weight adjustment portion monolithically encased within the body portion of the co-forged iron type golf club head without the need for secondary attachment or machining operations. The present invention creates of an iron type golf club head from a pre-form billet that already contains two or more materials before the actual forging process resulting in a multi-material golf club head that doesn't require any post manufacturing operations such as machining, welding, swaging, gluing, and the like.

Abstract: A composite golf club head with improved sound characteristics is disclosed herein. More specifically, the present invention relates to a golf club head that utilizes a unique composite type material having a low damping coefficient; creating more discretionary weight to optimize performance without comprising the sound of the golf club head. Depending on the amount of discretionary weight desired, the present invention could replace parts of the crown, the sole, the striking face, or even all three of the above referenced components with a low-damping composite material to improve the performance. The low-damping composite material used in accordance with the current invention may generally have a damping loss factor (?) of less than about 0.02.

Abstract: A metal wood golf club with a striking face portion made from more than one material is disclosed. More specifically, due to the unique construction of the striking face portion having multiple materials, the present invention utilizes diffusion bonding, liquid interface diffusion, or even super plastic forming techniques to achieve the desirable bond between the more than one material used to form the striking face. The striking face portion is formed by adding a chip insert made from a secondary material that is different from the remainder of the striking face portion substantially near a geometric center of the striking face portion; wherein the secondary material has a higher Young's modulus than the remainder of the striking face portion.

Abstract: A metal wood golf club with a striking face portion made from more than one material is disclosed. More specifically, due to the unique construction of the striking face portion having multiple materials, the present invention utilizes diffusion bonding, liquid interface diffusion, or even super plastic forming techniques to achieve the desirable bond between the more than one material used to form the striking face. The striking face portion is formed by adding a chip insert made from a secondary material that is different from the remainder of the striking face portion substantially near a geometric center of the striking face portion; wherein the secondary material has a higher Young's modulus than the remainder of the striking face portion.

Abstract: A metal wood golf club with a striking face portion made from more than one material is disclosed. More specifically, due to the unique construction of the striking face portion having multiple materials, the present invention utilizes bonding spray deposition process to achieve the desirable bond between the more than one materials used to form the striking face. The striking face portion is formed by creating a chip insert type material utilizing the spray deposition process that is made from a secondary material that is different from the remainder of the striking face portion substantially near a geometric center of the striking face portion; wherein the secondary material has a higher Young's modulus than the remainder of the striking face portion.

Abstract: A golf club head with a multi-material face is disclosed herein. The layers of the multi-material face are preferably attached to the club head using adhesive and mechanical methods.

Abstract: A golf club with a multi-material face is disclosed herein. More specifically, the golf club head in accordance with the present invention has a striking face that forms a pocket, wherein the pocket is filled with a secondary material having a lower density to improve the performance of the golf club head. The multi-material face disclosed in accordance with the present invention may generally have a characteristic time slope of greater than about 5 and less than about 50, wherein the characteristic time slope is determined based on the various data points collected according to the United States Golf Association's (USGA's) Characteristic Time (CT) test.

Abstract: A golf club that utilizes multiple materials to achieve improved performance is disclosed herein. More specifically, the present invention relates to a golf club that utilizes different materials to construct different portions of the iron type golf club head allowing weight to be removed from portions of the golf club head that doesn't require such weighting. The current invention utilizes a lightweight material to form a blade portion of the golf club head while utilizing a standard steel material to form the hosel portion of the golf club head to allow the malleability characteristics of a golf club head to be maintained. The weight saved from the lightweight material used to create the blade portion can then be used to create a sole insert that is made out of a dense and heavy material to improve the CG and MOI characteristics of the golf club head to dramatically improve the performance of the golf club head.