A golf club head including a striking face, a periphery portion surrounding and extending rearwards from the striking face, a damping element including a front surface and a rear surface, the rear surface of the damping element opposite the front surface of the damping element, wherein the striking face comprises a first portion having a substantially constant thickness, wherein the front surface of the damping element comprises a geometric center, wherein the golf club head includes additional damping structures and materials to achieve desired acoustic characteristics.

A golf club head has a main body and a front recess that includes a flange. A rear portion of the main body includes a perimeter-weighting element. A striking face insert is secured within the front recess. A face center is located on the front surface of the striking face insert. A rear cavity is at least partially delimited by the perimeter-weighting element and a rear surface of the striking face insert. A rear insert is secured to the rear surface of the striking face insert. In an imaginary horizontal plane passing through a portion of the rear insert, proximate a heel portion of the club head, a heelwardmost point of the rear insert is spaced further from a vertical center plane than a minimum distance between the flange and the center plane. The club head comprises an auxiliary recess that extends outward from the rear cavity.

Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a body portion defining an interior cavity, a port on the body portion connected to the interior cavity, and a face portion coupled to a front portion of the body portion to enclose the interior cavity. The face portion includes a recess portion and a face plate portion. The face plate portion includes an outer portion surrounding an inner portion. The inner portion of the face plate portion configured to enclose the recess portion. The golf club head also includes a first filler material in the interior cavity, and a second filler material in the recess portion. The first filler material and the second filler material have different coefficients of restitution. Other examples and embodiments may be described and claimed.

Aspects of the invention are directed to golf club having a crown, a sole, a face, and a face alignment feature located on the face.

A golf club head including a striking face, a back portion, and a back cover attached to the back portion, wherein the golf club head includes damping structures and materials to achieve desired acoustic characteristics.

Embodiments of golf club heads, golf clubs, and methods to manufacture golf club heads and golf clubs are generally described herein. In one example, a golf club head includes a hollow body portion including a material having a first density and an interior cavity. A face pocket portion may be in the first interior cavity at or proximate to the front portion of the body portion, define a second interior cavity, and at least partially enclose the first interior cavity. A face portion is coupled to the front portion to enclose the second interior cavity. A first filler material may be injected into the first interior cavity from an external port. A second filler material may fill the second interior cavity. The first filler material and the second filler material may have at least one different physical property. Other examples and embodiments may be described and claimed.

A golf club head comprises a head main body, a weight member and a fixing member. The head main body is provided with a concave portion concaved from an outer surface of a finished shape of the golf club head. A specific gravity of the weight member is larger than a specific gravity of the head main body and larger than a specific gravity of the fixing member. The weight member is at least partially disposed in the concave portion. The fixing member is fixed to the concave portion so as to cover at least a part of the weight member from outside of the golf club head. The fixing member is provided with a through hole having an opening located in the above-said outer surface, and a part of the weight member is disposed in the through hole.

Disclosed herein is a golf club heads having a body portion and a face portion, wherein the face portion comprises a variable thickness profile disposed at an angle on the rear surface of the face plate.

Wood-type golf clubs and/or golf club heads include: (a) a golf club head base member including a face member having a ball striking face; and (b) a polymeric body member engaged with the golf club head base member, wherein the polymeric body member is formed via a rotational molding process (or other centrifugal force inducing molding process) and/or engaged with the golf club head base member via a rotational molding process (or other centrifugal force inducing molding process). The polymeric body member forms at least a portion of a crown member of the club head in some structures.

Embodiments of putter-type golf club head comprising a striking surface capable of achieving consistent ball speeds across the striking surface to account for various ball impact locations are described herein. The striking surface has at least two materials that differs in concentration away from the geometric center of the striking surface to provide this consistency. Consistent (or uniform) ball speed is achieved throughout the striking surface as the portion of the golf ball that contacts the striking surface interacts with at least two materials having a differing material characteristic.