Abstract: The present invention provides a novel solution to imparting backspin on high lofted golf clubs. The present invention seeks to define a class of scoreline patterns that result in a higher density of scorelines along the bottom perimeter of an iron face. This in turn, results in increased spin on a golf ball when struck low on the face.

Abstract: The present invention provides a golf club head that can hit a ball with a sufficiently large amount of backspin. The golf club head according to the present invention is an iron type golf club head made of a metal and including a flat face. A plurality of traces are formed by milling on the face. The pitch of the traces is between 0.1 mm and 1 mm.

Abstract: Putters include a putter body having a ball striking face member made of a material having a first hardness characteristic. A cavity is defined in the putter body behind the ball striking face member, and plural openings are defined in the ball striking face member extending rearward with respect to the ball striking face member and into the cavity. A polymeric material at least partially fills the openings and the cavity, wherein the polymeric material has a second hardness characteristic that is softer than the first hardness characteristic. The ball striking face member and the polymeric material exposed in at least some of the openings provide a ball striking surface of the putter. The ball striking surface may include grooves or scorelines to affect the launch angle, spin, and/or roll of the ball during a putt. Methods for making such putter devices also are described.

Abstract: A face insert for golf club head in one embodiment can comprise a substrate comprising a score line groove-free front surface. A cover layer is provided at least on the front surface of the substrate. The cover layer can alternatively overlay at least a portion of the peripheral edge of the substrate. The cover layer comprises a ball-striking surface spaced by the cover layer from the substrate. Plural elongated score line grooves can extend into the polymer layer from the ball-striking surface. In addition, visible markings are interposed between the cover layer and the front surface of the substrate, the visible markings being visible through the cover layer. In one form the visible markings comprise elongated score line markings and target markings in a central portion of the substrate. The visible markings can be screen-printed markings, which are then protected by the cover layer from wear. The cover layer can be molded and can be a polymer layer.

Abstract: This invention provides a golf club head including a plurality of parallel scorelines formed in its face surface, and a plurality of grooves which are formed in the face surface and have a width narrower than the scorelines. Rounded portions are formed on the edges of the scorelines. The plurality of grooves are formed at positions on the two sides of each of the scorelines to extend parallel to the scorelines.

Abstract: A golf club with a golf club head having compressible v-shaped grooves is presented. The club head may include a plurality of grooves formed in a striking face. In some arrangements, the grooves have a rectangular cross section. The grooves may also include a compressible insert having a v-shaped end and being formed of a material softer than that of the grooves. As the club head strikes a golf ball, the insert may compress, thereby allowing additional contact between the groove and the ball to impart spin on the ball. In an alternate arrangement, the groove may include a compressible support arranged between the insert and an end of the groove. The compressible insert may be formed of a material softer than the groove and/or the insert and is configured to compress when the club head strikes a golf ball.

Abstract: A putter head includes substantially parallel plural grooves formed on a face thereof, wherein a ratio W/S of a groove width W (mm) and a space width S (mm) between the grooves is from 0.5 to 2.0.

Abstract: Embodiments of grooves of golf club heads and methods to manufacture grooves of golf club heads are generally described herein. Other embodiments may be described and claimed.

Abstract: Golf club heads for iron-type golf clubs (including 1 through 9 irons, iron-type hybrid clubs, driving irons, and wedges (e.g., pitching wedges, lob wedges, gap wedges, sand wedges, etc.)) include a striking face. The striking face may comprise a plurality of spaced, parallel grooves that extend across at least a portion of the striking face. The grooves may form a herringbone groove pattern. The herringbone groove pattern may include two or more rows of diagonal, parallel grooves slanting in alternate directions to form a series of parallel Vs. The grooves may be rounded. Other possible groove shapes also are described.

Abstract: This invention provides a golf club head comprising a plurality of score lines formed in its face. Letting ? be the angle of the side wall of the scoreline with respect to the face, Cp be the center point of a virtual circle which has a radius of 0.254 mm and is inscribed in both the side wall and the face, F be the point of contact between the virtual circle and the face, G be the point of contact between the virtual circle and the side wall, P be a point farthest from the center point Cp in the segment from the point of contact F to the point of contact G in the edge portion of the scoreline, and D (mm) be the length from the center point Cp to the point P, the golf club head satisfies 56°???80° and 0.270?D?0.287.

Abstract: Putters include a putter body having a ball striking face member made of a material having a first hardness characteristic. A cavity is defined in the putter body behind the ball striking face member, and plural openings are defined in the ball striking face member extending rearward with respect to the ball striking face member and into the cavity. A polymeric material at least partially fills the openings and the cavity, wherein the polymeric material has a second hardness characteristic that is softer than the first hardness characteristic. The ball striking face member and the polymeric material exposed in at least some of the openings provide a ball striking surface of the putter. The ball striking surface may include grooves or scorelines to affect the launch angle, spin, and/or roll of the ball during a putt. Methods for making such putter devices also are described.

Abstract: A golf club head which may include an iron-type golf club head body, a face plate, and a filler positioned behind the ball striking face. According to aspects of the disclosure, the face plate may include score lines which define holes in the face plate. Further, according to aspects of the disclosure, the filler may be comprised of a material that readily absorbs the deflection of the face plate during impact with a golf ball during a golf swing and dampens the impact between the golf club head and the golf ball.

Abstract: A ball striking device, such as an iron-type golf club, includes a head that has a face having a ball striking surface defined thereon and an arched top edge, an iron-type golf club body connected to the face, and a hosel connected to the body. The arched top edge of the face includes a crest portion, a first upwardly sloping portion extending from a toe edge of the face to the crest portion, and a second upwardly sloping portion extending from the hosel to the crest portion, such that the distance from the bottom edge of the face to the top edge of the face is greatest at the crest portion. The hosel has a first end connected to the body and a second end located below the crest portion of the face.

Abstract: This invention provides a golf club head in which a plurality of scorelines are formed in its face surface. The golf club head includes a first fine groove formed in the face surface to extend parallel to the scorelines, and a second fine groove formed in the face surface to intersect with the first fine groove.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing and surface roughening to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio.

Abstract: This invention provides a golf club head in which a plurality of scorelines are formed in its face surface at an equal pitch. Rounded portions are formed on the edges of the scorelines. Each region between adjacent scorelines includes a fine groove formation region in which N (N?2) fine grooves are formed to extend parallel to the scorelines and to align themselves in a direction perpendicular to the scorelines at an interval d (d?0). Letting S be the distance between the endpoints of the rounded portions of the adjacent scorelines, Wt be the sum total of the widths of all the fine grooves, A1 be the distance from the endpoint of the rounded portion of one scoreline of the adjacent scorelines to the fine groove formation region, A2 be the distance from the endpoint of the rounded portion of the other scoreline of the adjacent scorelines to the fine groove formation region, and Wmax be the maximum width of the widths of the fine grooves, 0?A1+A2<Wmax+d, |A1?A2|<(Wmax+d)/4, and Wt+d×(N?1)+A1+A2=S.

Abstract: The present invention discloses a golf club head having a plurality of grooves. On the face of the golf club head is a first and second plurality of grooves. The second set of plurality of grooves is smaller in width and depth than those of the first set of plurality of grooves. Each groove of the second set of grooves is positioned at an angle ranging from 15 degrees to 25 degrees relative to each groove of the first set of grooves.

Abstract: A golf club head includes a striking face having a plurality of grooves formed therein. At least one groove includes a first curved side surface, a second curved side surface opposite to the first curved side surface, and a bottom surface connecting the first and the second curved side surfaces. As viewed in the longitudinal direction of the at least one groove, the first and the second curved surfaces respectively have first and second involute profiles. A distance measured between the first and the second curved surfaces continuously increases from the bottom surface to the striking face.

Abstract: An improved face for a golf club head includes shallow and deep markings configured to provide a pleasing appearance when viewed head on, and to frame the central region of the impact surface of the face when viewed at address. Use of only shallow markings in the central region of the impact surface prevents existence of stress fractures resulting from use of deep markings in the central region. This allows for a face thinner than those incorporating conventional grooves in the central regions of their impact surfaces, resulting in both superior resistance to cracking and improved C.O.R. Specified methods of manufacture are particularly suited for making clubs incorporating these shallow and deep markings.

Abstract: A golf club head having a multi-material face. The golf club head has a hard, wear resistant material as the ball-impacting face surface coupled to a softer material, allowing the multi-material face to be joined to a soft body material such that the body can be bent and customized. The multi-material face allows for improved playing characteristics by allowing the club designer to use a thinner face and lighter body material while still providing improved face wear resistance and durability.

Abstract: Putters include a putter body having a ball striking face member made of a material having a first hardness characteristic. A cavity is defined in the putter body behind the ball striking face member, and plural openings are defined in the ball striking face member extending rearward with respect to the ball striking face member and into the cavity. A polymeric material at least partially fills the openings and the cavity, wherein the polymeric material has a second hardness characteristic that is softer than the first hardness characteristic. The ball striking face member and the polymeric material exposed in at least some of the openings provide a ball striking surface of the putter. The ball striking surface may include grooves or scorelines to affect the launch angle, spin, and/or roll of the ball during a putt. Methods for making such putter devices also are described.

Abstract: A set of iron-type golf clubs comprising “n” pieces of golf clubs having club heads with different loft angles and having advantages that variation in spin amount at mis-shots by long irons is small and accuracy in shots of intentionally curving a ball by short irons is high, each of the club heads having face 4 provided with a plurality of face grooves 10 extending in the toe-heel direction and a plurality of auxiliary grooves 11 including a plurality of first auxiliary grooves 11a extending in at least a region between toe side line L1 and heel side line L2, the first auxiliary grooves 11a being, in this region, in the form of curved grooves convex upward such that a curve descends from peak 13 toward the toe and heel side lines L1 and L2, and average degrees of curvature ?i of the first auxiliary grooves of the club heads satisfying a specific relationship.

Abstract: A method for surface treating a golf club head, includes: (a) forming a depression unit in the golf club head, the depression unit being indented inwardly from an outer surface of the golf club head, the outer surface being divided into a working area and a non-working area, the depression unit being formed in the working area; (b) filling the depression unit with a shielding material and covering the non-working area with a covering material; and (c) sandblasting the golf club head after step (b) and removing subsequently the shielding material from the depression unit and the covering material from the non-working area so as to form the working area into sandblasted and non-sandblasted regions that differ in gloss intensity.

Abstract: In order to sharpen and harden a corner portion of a score line edge portion of an iron golf club having a plurality of score lines on a face surface within a prescribed range, heat input is implemented on an edge portion of a groove through laser irradiation after the groove is machined and, as a result, the edge portion is hardened and melted to form a rounded corner R. The hardness is set at a Vickers hardness value (HV) of at least 350. The corner R forms a part of a contour line of the edge portion and this contour line is formed to exist between a first circle that contacts the face surface and a side surface of the groove and has a radius of 0.010 inches (0.254 millimeters) and a second circle that is concentric with the first circle and has a radius of 0.011 inches (0.2794 millimeters).

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances and angled relative to a leading edge of the golf club head. The sole of the golf club head is contoured so that the effective bounce and leading edge height are controlled when the golf club head is rotated to an opened orientation.

Abstract: The present invention discloses an iron-type golf club head having a face insert composed of a metal injection molded material. The face insert having a plurality of grooves disposed therein.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing and surface roughening to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, and a portion having a v-shape.

Abstract: An iron-type golf club head with a body having a face. On the face is a plurality of grooves. The plurality of grooves has a depth of at least 0.016 inch to 0.022 inch and a width ranging from 0.021 inch to 0.027 inch. Further, each of the plurality of grooves has an edge radius ranging from 0.004 inch to 0.009 inch. Each of the plurality of grooves has a side wall angle ranging from 16 degrees to 24 degrees and each of the plurality of grooves is spaced from 0.073 inch to 0.083 inch from any other of the plurality of grooves.

Abstract: Embodiments of golf clubs with grooves and methods of manufacture thereof are described herein. Other embodiments and related methods are also disclosed herein.

Abstract: An iron head is provided with a recess portion provided in an upper portion of a backside surface thereof, and a protruding portion provided at a lower portion of the backside surface. A first hollow portion is provided on a heel side from a bottom surface of a recess portion to a sole surface; and a second hollow portion is disposed on a toe side. The first hollow portion and the second hollow portion do not exist behind a sweet area. The first hollow portion and the second hollow portion may be filled with a shock absorber formed of a rubber or an elastomer.

Abstract: The present invention is directed to a golf club head with an improved striking surface. Grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio. Preferred values for these dimensions are provided. A golf club head having a variety of groove types and a set of golf clubs with grooves varying among the individual clubs of the set are also disclosed.

Abstract: A golf club head according to this invention has scorelines formed in its face surface. A first plated layer is formed on at least the face surface of a head base body before the scorelines are formed in the face surface, the face surface is grooved to form the scorelines in it, and a second plated layer is formed on the face surface.

Abstract: A golf club head according to this invention has scorelines formed in its face surface. A plated layer is formed on at least the face surface of a head base body before the scorelines are formed in the face surface, and the face surface is grooved to form the scorelines in it.

Abstract: The present invention is directed to a method of forming a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances using a profiled cutter.

Abstract: Embodiments of club heads with contoured back faces and methods of manufacturing the same are described herein.

Abstract: A hybrid golf club head for producing accurate and long distance shots, where the head includes: a body member having a hitting surface, a top surface, a toe end, a heel end, and a sole surface extending between the toe end and the heel end, and a shaft attachment portion extending from the heel end upwardly and rearwardly therefrom, wherein width of the top surface near the shaft attachment portion ranges from about ¾ inches to about 1 inch, and width of the top surface near the toe end ranges from about 1 inch to 1 & ? inches; and wherein the hitting surface is inclined at a predetermined angle with respect to a shaft axis to produce the accurate and the long distance shots, further wherein the length (L) of the hitting surface 14 is about 4 inches and the breadth (B) ranges from about 1 ¾ inches to about 2 ½ inches.

Abstract: A golf club head, according to one or more aspects of the present invention, comprises a metallic striking wall having a striking surface and at least one through score-line opening. At least one complementary component may be disposed rearward of the striking surface such that at least a part of the at least one complementary component extends into only a part of the at least one through score-line opening.

Abstract: The present invention discloses a golf club head having a plurality of grooves. On the face of the golf club head is a first and second plurality of grooves. The second set of plurality of grooves is smaller in width and depth than those of the first set of plurality of grooves.

Abstract: A golf club head 2 includes a face line 8 having a depth of D1 (mm) and a land area LA. When a boundary point between the land area LA and the face line 8 in a section line of a surface of the face line 8 is defined as Pa; a point of which a depth is T1 (mm) is defined as Pb; and a curvature radius of the section line between the point Pa and the point Pb is defined as R1 (mm), the golf club head 2 satisfies the following formulae (1) and (2): R1>T1??(1) 0.10?T1?0.5??(2) Preferably, a ratio (R1/T1) is greater than 1.0 and is equal to or less than 3.0.

Abstract: Embodiments of golf clubs with grooves and methods of manufacture thereof are described herein. In some embodiments, a golf club head can include: (a) a body having a strike face with channels; and (b) at least one insert located within at least one of the channels. The at least one of the channels can have a single groove, and the at least one insert can form at least a portion of the single groove. Other embodiments and related methods are also disclosed herein.

Abstract: The present invention provides a golf club head that can hit a ball with a sufficiently large amount of backspin. The golf club head according to the present invention is an iron type golf club head made of a metal and including a flat face. A plurality of traces are formed by milling on the face. The pitch of the traces is between 0.1 mm and 1 mm.

Abstract: A golf putter head having a vertically curved putter face with multiple horizontal contact facets. The face has a vertical radius of curvature that is at least 2 inches and no more than 3.5 inches. The face includes a plurality of horizontal contact facets that are vertically curved to match the vertical radius of curvature. The contact facets, along with the radius of curvature, ensure that no more than two of the horizontal contact facets contact the golf ball when struck by the putter head at a speed of less than 15 miles per hour. The putter produces a horizontal linear contact, or impact, geometry that compensates for misdirection of the path of the putter head throughout the stroke of the putter head. At least one of the horizontal contact facets is located at an elevation above the center of curvature and at least one is located below.

Abstract: A golf club head according to the present invention comprises a plurality of score lines on a face, and a stair-shaped portion comprising a plurality of steps formed on a side wall of the score line from a face side end of the side wall in a depth direction of the score line.

Abstract: The present invention provides a golf club head that can hit a ball with a sufficiently large amount of backspin. The golf club head according to the present invention is an iron type golf club head made of a metal and including a flat face. A plurality of traces are formed by milling on the face. The pitch of the traces is between 0.1 mm and 1 mm.

Abstract: The present invention is directed to a golf club head with an improved striking surface. The grooves are machined into the strike surface with tight tolerances. The grooves have sharp edges, radiused ends, and a draft angle between about 2° and 12°. The striking face is machined such that it has a uniform texture with a roughness of more than 40 Ra. The face may be selectively textured to enhance certain shots that the golfer may perform. This may include providing a plurality of distinct sets of texturing to accommodate a plurality of different shots. The grooves may contain a plurality of portions, including a radiused or angled portion, a portion having substantially parallel walls, a portion having a v-shape, and a curved portion. The grooves may also be characterized by various dimensions, including draft angle, inclusive side wall angle, width, depth, cross-sectional area, spacing, and pitch ratio.

Abstract: A golf club with a golf club head having a wear indicator is provided. The wear indicator may be located on the club head face, the hosel, the sole portion or the rear portion of the club head body. Also, multiple wear indicators may be provided on separate portions of the club head. Inserts may be used to provide a wear indicating portion. A coating may be provided to serve as a wear indicator.