# US 12,599,819 B2 · Golf club head > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,599,819 B2 - Document ID: US12599819B2 - Status: Granted - Kind: B2 - Application number: 18/219,414 - Filed: 2023-07-07 - Published: 2025-01-09 - Granted: 2026-04-14 - Earliest claimed: 2023-07-07 - Assignees: Sumitomo Rubber Industries, Ltd. - Applicants: Sumitomo Rubber Industries, Ltd. - Inventors: Jacob Lambeth; Pat Ripp; Rick Fillon; Jake Grenier - Web page: https://patentgrep.com/patent/US12599819B2 ## CPC - A63B 53/0408: {characterised by specific dimensions, e.g. thickness} - A63B 53/02: Joint structures between the head and the shaft - A63B 53/0466: {wood-type} - A63B 53/047: {iron-type} - A63B 60/02: Ballast means for adjusting the centre of mass (A63B60/24, A63B60/54 take precedence) - A63B 2053/0479: {Wedge-type clubs, details thereof} - A63B 2053/0491: {with added weights, e.g. changeable, replaceable} - A63B 2209/00: Characteristics of used materials - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A golf club head includes a striking face having a face center and defining a face plane, a virtual vertical center plane perpendicular to the face plane and passing through the face center, a sole portion, a top portion, a heel portion, a toe portion, a hosel configured to receive a shaft, and a loft, L, no less than 39°. A center of gravity is spaced toe-ward from the vertical center plane by a distance, Dt, of greater than 0.0 mm. A moment of inertia, Iyy, measured about an axis extending in a heel to toe direction, parallel with a ground plane, passes through the center of gravity such that Iyy is no less than 1150 g·cm2. ## Claims ### Claim 1 A golf club head that, when oriented in a reference position relative to a virtual ground plane, comprises: a striking face having a face center and defining a face plane; a virtual vertical center plane perpendicular to the face plane and passing through the face center; a sole portion; a top portion opposite the sole portion; a heel portion; a toe portion opposite the heel portion; a hosel configured to receive a shaft and defining a hosel axis; a loft, L, no less than 39°; a center of gravity spaced toe-ward from the vertical center plane by a distance, Dt, of greater than 0.0 mm; a moment of inertia, Iyy, measured about an axis extending in a heel to toe direction, parallel with the virtual ground plane, and passing through the center of gravity, Iyy being no less than 1150 g·cm2; and a club head mass between about 250 g and about 320 g. ### Claim 2 (depends on 1) The golf club head of claim 1, wherein L is no less than 54°. ### Claim 3 (depends on 1) The golf club head of claim 1, wherein Dt is no less than 0.5 mm. ### Claim 4 (depends on 3) The golf club head of claim 3, wherein Dt is between 0.5 mm and 1.0 mm. ### Claim 5 (depends on 1) The golf club head of claim 1, wherein the center of gravity is spaced rearwardly from, and perpendicularly to, the face plane by a distance, D5, no greater than 2.25 mm. ### Claim 6 (depends on 1) The golf club head of claim 1, wherein the club head mass is no less than 300 g. ### Claim 7 (depends on 1) The golf club head of claim 1, further comprising a moment of inertia, Izz, measured about an axis extending vertically through the center of gravity, Izz being no less than 2500 g·cm2. ### Claim 8 (depends on 7) The golf club head of claim 7, wherein Izz is no less than 3200 g·cm2. ### Claim 9 (depends on 1) The golf club head of claim 1, wherein the golf club head comprises a first component comprising a first material having a first melting point and a first density, and a second component comprising a second material having a second melting point greater than the first melting point and a second density less than the first density, the second component at least partially encapsulated by the first component. ### Claim 10 (depends on 9) The golf club head of claim 9, wherein the second density is no greater than 2.5 g/cm3. ### Claim 11 (depends on 9) The golf club head of claim 9, wherein the second material comprises a ceramic material. ### Claim 12 (depends on 9) The golf club head of claim 9, wherein a minimum thickness of the first component surrounding the second component, measured outwardly from an exterior surface of the second component, is no less than 0.75 mm. ### Claim 13 (depends on 1) The golf club head of claim 1, wherein the club head includes a rear cavity and a perimeter weighting element surrounding the rear cavity, the perimeter weighting element including a chamfer defining a chamfer wall that extends only partially about the perimeter weighting element. ### Claim 14 (depends on 13) The golf club head of claim 13, wherein the chamfer wall is located in a portion of the perimeter weighting element proximate the sole portion and the heel portion of the club head. ### Claim 15 A golf club that, when oriented in a reference position relative to a virtual ground plane, comprises: a golf club head comprising: a striking face having a face center and defining a face plane; a virtual vertical center plane perpendicular to the face plane and passing through the face center; a sole portion; a top portion opposite the sole portion; a heel portion; a toe portion opposite the heel portion; a hosel defining a hosel axis; a loft, L, no less than 39°; a center of gravity spaced toe-ward from the vertical center plane by a distance, Dt, of greater than 0.0 mm; a moment of inertia, Iyy, measured about an axis extending in a heel to toe direction, parallel with the virtual ground plane, and passing through the center of gravity, Iyy being no less than 1150 g·cm2; and a club head mass between about 250 g and about 320 g; and a shaft secured to the hosel of the club head. ### Claim 16 (depends on 15) The golf club of claim 15, wherein the shaft comprises a shaft mass no greater than 110 g. ### Claim 17 (depends on 15) The golf club of claim 15, wherein L is no less than 54°. ### Claim 18 (depends on 15) The golf club of claim 15, wherein Dt is no less than 0.5 mm. ### Claim 19 (depends on 18) The golf club of claim 18, wherein Dt is between 0.5 mm and 1.0 mm. ### Claim 20 (depends on 15) The golf club of claim 15, wherein the center of gravity is spaced rearwardly from, and perpendicularly to, the face plane by a distance, D5, no greater than 2.25 mm. ### Claim 21 (depends on 15) The golf club of claim 15, further comprising a moment of inertia, Izz, measured about an axis extending vertically through the center of gravity, Izz being no less than 2500 g·cm2. ### Claim 22 (depends on 15) The golf club of claim 15, wherein the club head includes a rear cavity and a perimeter weighting element surrounding the rear cavity, the perimeter weighting element including a chamfer defining a chamfer wall that extends only partially about the perimeter weighting element. ### Claim 23 (depends on 22) The golf club of claim 22, wherein the chamfer wall is located in a portion of the perimeter weighting element proximate the sole portion and the heel portion of the club head.