US20060135286A1 - Golf club head and its manufacturing method - Google Patents

Golf club head and its manufacturing method Download PDF

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Publication number
US20060135286A1
US20060135286A1 US11/304,679 US30467905A US2006135286A1 US 20060135286 A1 US20060135286 A1 US 20060135286A1 US 30467905 A US30467905 A US 30467905A US 2006135286 A1 US2006135286 A1 US 2006135286A1
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US
United States
Prior art keywords
golf club
club head
welding
metallic
metallic members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/304,679
Other languages
English (en)
Inventor
Yasunori Imamoto
Hisashi Yamagishi
Hideo Matsunaga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Sports Co Ltd
Original Assignee
Bridgestone Sports Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bridgestone Sports Co Ltd filed Critical Bridgestone Sports Co Ltd
Assigned to BRIDGESTONE SPORTS CO., LTD. reassignment BRIDGESTONE SPORTS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IMAMOTO, YASUNORI, MATSUNAGA, HIDEO, YAMAGISHI, HISASHI
Publication of US20060135286A1 publication Critical patent/US20060135286A1/en
Abandoned legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0458—Heads with non-uniform thickness of the impact face plate
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0466—Heads wood-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0408—Heads characterised by specific dimensions, e.g. thickness
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • A63B53/042—Heads having an impact surface provided by a face insert the face insert consisting of a material different from that of the head
    • A63B53/0425—Heads having an impact surface provided by a face insert the face insert consisting of a material different from that of the head the face insert comprising two or more different materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/047—Heads iron-type
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/047—Heads iron-type
    • A63B53/0475—Heads iron-type with one or more enclosed cavities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K10/00—Welding or cutting by means of a plasma
    • B23K10/02—Plasma welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/0046—Welding
    • B23K15/0053—Seam welding
    • B23K15/0073—Seam welding with interposition of particular material to facilitate connecting the parts, e.g. using a filler
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/211—Bonding by welding with interposition of special material to facilitate connection of the parts
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B2209/00—Characteristics of used materials
    • A63B2209/02—Characteristics of used materials with reinforcing fibres, e.g. carbon, polyamide fibres
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B53/00—Golf clubs
    • A63B53/04—Heads
    • A63B53/0416—Heads having an impact surface provided by a face insert
    • A63B53/042—Heads having an impact surface provided by a face insert the face insert consisting of a material different from that of the head
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/02—Iron or ferrous alloys
    • B23K2103/04—Steel or steel alloys
    • B23K2103/05—Stainless steel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K2103/00—Materials to be soldered, welded or cut
    • B23K2103/08—Non-ferrous metals or alloys
    • B23K2103/10—Aluminium or alloys thereof

Definitions

  • the present invention relates to a golf club head having a part where the metallic members with different thickness are welded by plasma welding, laser welding or electron beam welding and its manufacturing method.
  • a golf club head having a part where the metallic members are welded together, in which a face, a crown, a sole, and a hosel are welded by TIG welding, MIG welding, laser welding or electron beam welding (refer to JP-A-5-15620).
  • the invention provides a golf club head having a part where the metallic members with different thickness are welded by plasma welding, laser welding or electron beam welding, in which it is unnecessary to machine in advance the metallic members precisely so as not to cause a gap between the metallic members at the time of welding, and its manufacturing method.
  • a golf club head includes a first metallic member, a second metallic member having different thickness from the first metallic member, and a part where the first and second metallic members are welded by plasma welding, laser welding or electron beam welding. A gap between the first and second metallic members is filled up with another metal material besides the first and second metallic members.
  • a manufacturing method of a golf club head which includes a first metallic member, and a second metallic member having different thickness from the first metallic member
  • the manufacturing method includes welding the first and second metallic members by plasma welding, laser welding or electron beam welding, and filling up a gap between the first and second metallic members with another metal material besides the first and second metallic members.
  • FIG. 1 is a perspective view showing a golf club head according to a first embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the golf club head of FIG. 1 , taken along the line X-X in FIG. 1 ;
  • FIG. 3 is a perspective view of a face member for the golf club head of FIG. 1 ;
  • FIG. 4 is an enlarged view of a weld zone for the golf club head of FIG. 1 ;
  • FIG. 5 is an exploded perspective view showing a golf club head according to a second embodiment of the invention.
  • FIG. 6 is a perspective view showing a golf club head according to a third embodiment of the invention.
  • FIG. 7 is an exploded perspective view showing a golf club head according to a fourth embodiment of the invention.
  • the well-known plasma welding may be employed in which the members to be welded are dissolved and resolidified due to high temperature energy caused by plasma arc.
  • the well-known laser welding may be employed in which a gas laser such as CO laser or CO 2 laser, or a solid laser such as YAG laser is used.
  • the electron beam welding the well-known electron beam welding may be employed in which the electron beam of appropriate output is used.
  • the method of performing the plasma welding, laser welding or electron beam welding while filling up a gap between the metallic members with another metal material is not limited, but maybe implemented as the method of performing the plasma welding, laser welding or electron beam welding, using a wire rod of another metal material, while filling up a gap between the metallic members with metal forming the wire rod.
  • the wire rod of another metal material may suitably have a diameter from 0.5 to 3.5 mm, particularly from 1.0 to 2.5 mm.
  • a difference in thickness between the metallic members to be welded is appropriately from 0.1 to 1.5 mm, particularly from 0.2 to 0.6 mm.
  • the metallic members with different thickness may be selected from among titanium, titanium alloy, aluminum and stainless steel.
  • another metal material for filling up a gap between the metallic members with different thickness may be selected from among titanium, titanium alloy, aluminum and stainless steel.
  • Another metal material for filling up a gap between the metallic members with different thickness is essentially the metal material separate from the metallic members with different thickness, and may or may not the same metal as one or both of the metallic members with different thickness.
  • another metal material is preferably a dissimilar metal that is equivalent at 60% or more of metal composition, particularly at 80% or more to one or both of the metallic members with different thickness.
  • another metal material may be suitably the metal material similar to the metallic members with different thickness, or its alloy, with a difference in the melting point being from 0 to 200° C., particularly from 0 to 150° C.
  • the metallic members with different thickness and another metal material may be selected from among the metals having the following compositions (1) to (8), but are not limited to them. Among others, the combinations of (1) and (4), (2) and (4), (3) and (4), and (8) and (8) are particularly preferable.
  • the metallic members with different thickness to be welded are suitably a combination of cast member and forged member, a combination of cast member and press-formed member (metal material formed by press working a plate), or a combination of forged member and press-formed member, but not limited to them.
  • a part where the metallic members with different thickness are welded by plasma welding, laser welding or electron beam welding may be made to extend across at least two sections selected from a face a sole, a crown, a toe, a heel, a side, a top blade and a hosel.
  • the part where the metallic members with different thickness are welded may be made to extend across the face and the crown, the face, the top blade and the toe, or the face, the sole and the toe, as described in the following embodiment.
  • the golf club head of the invention may be a wood type golf club head having a hollow portion, an iron type golf club head, or a composite golf club head made of fiber reinforced resin and metal.
  • FIG. 1 is a perspective view showing a golf club head according to a first embodiment of the invention.
  • FIG. 2 is a cross-sectional view of the golf club head of FIG. 1 , taken along the line X-X in FIG. 1 .
  • FIG. 3 is a perspective view of a face member of the golf club head of FIG. 1 .
  • the golf club head of this embodiment is formed into the wood type golf club head having a hollow portion.
  • the golf club head of this embodiment includes a head main body 14 made of titanium alloy (specifically 6-4Ti) having a face opening portion 12 on a face side 10 and a face member 16 made of titanium alloy (specifically Ti735) for closing the face opening portion 12 .
  • the golf club head of this embodiment has an upper edge of the face opening portion 12 and an upper edge of the face member 16 extending to a crown portion. Accordingly, when the face portion 16 is fixed to a peripheral portion of the face opening portion 12 for the head main body 14 , an upper edge 18 of the face member 16 constitutes a part of the crown portion in the golf club head.
  • the thickness P of the face member 16 is greater by 0.3 mm than the thickness Q of the peripheral portion of the face opening portion for the head main body 14 .
  • the face main body 14 and the face member 16 are welded by plasma welding while a gap between them is filled up with another metal material (specifically a wire rod having a diameter of 5 mm and made of 6-4Ti, like the head main body 14 ). Accordingly, the gap between the head main body 14 and the face member 16 is filled up with another metal material 20 , as shown in FIG. 4 .
  • another metal material specifically a wire rod having a diameter of 5 mm and made of 6-4Ti, like the head main body 14 . Accordingly, the gap between the head main body 14 and the face member 16 is filled up with another metal material 20 , as shown in FIG. 4 .
  • FIG. 5 is an exploded perspective view showing a golf club head according to a second embodiment of the invention.
  • the golf club head of this embodiment is formed into the iron type golf club head.
  • the golf club head of this embodiment includes a head main body 34 (cast member of SUS630) having a face opening portion 32 on a face side 30 and a face member 36 (rolled member of SUS630) for closing the face opening portion 32 .
  • an upper edge 38 of the face member 36 constitutes a part of the top blade portion for the golf club head and a leading edge 40 of the face member 36 constitutes a part of the toe portion for the golf club head.
  • the thickness of the face member 36 is greater by 0.1 mm than the thickness of the peripheral portion of the face opening portion for the head main body 34 .
  • the face main body 34 and the face member 36 are welded by plasma welding while a gap between them is filled up with another metal material (specifically a wire rod having a diameter of 1.5 mm and made of SUS630, like the head main body 34 and the face member 36 ).
  • another metal material specifically a wire rod having a diameter of 1.5 mm and made of SUS630, like the head main body 34 and the face member 36 .
  • FIG. 6 is a perspective view showing a golf club head according to a third embodiment of the invention.
  • the golf club head of this embodiment is formed into the iron type golf club head.
  • the golf club head of this embodiment includes a head main body 52 (cast member of SUS630) having a face opening portion (not shown) on a face side 50 and a face member 54 (rolled member of SUS630) for closing the face opening portion.
  • FIG. 6 shows a state where the head main body 52 and the face member 54 are fixed together.
  • a lower edge 56 of the face member 54 constitutes a part of the sole portion for the golf club head and a leading edge 58 of the face member 54 constitutes a part of the toe portion for the golf club head.
  • the thickness of the face member 54 is greater by 0.1 mm than the thickness of the peripheral portion of the face opening portion for the head main body 52 .
  • the face main body 52 and the face member 54 are welded by laser welding while a gap between them is filled up with another metal material (specifically a wire rod having a diameter of 1.5 mm and made of SUS630, like the head main body 52 and the face member 54 ).
  • another metal material specifically a wire rod having a diameter of 1.5 mm and made of SUS630, like the head main body 52 and the face member 54 .
  • FIG. 7 is an exploded perspective view showing a golf club head according to a fourth embodiment of the invention.
  • the golf club head of this embodiment is formed into the wood type golf club head having a hollow portion, or the composite club head made of fiber reinforced resin and metal having a metallic portion at least on the sole portion.
  • the golf club head of this embodiment includes a head main body 66 (cast member of 6-4Ti) having a face opening portion 62 on a face side 60 and a crown-side opening portion 64 in most of a crown portion and a side portion, a face member 68 (rolled member of SP700) for closing the face opening portion 62 , and a crown-side member 70 made of carbon fiber reinforced resin (CFRP) for closing the crown-side opening portion 64 .
  • CFRP carbon fiber reinforced resin
  • an upper edge of the face opening portion 62 and an upper edge of the face member 68 extend to the crown portion. Accordingly, when the face member 68 is fixed to a peripheral portion of the face opening portion 62 for the head main body 66 , an upper edge 72 of the face member 68 constitutes a part of the crown portion for the golf club head.
  • the thickness of the face member 68 is greater by 0.1 mm than the thickness of the peripheral portion of the face opening portion for the head main body 66 .
  • the face main body 66 and the face member 68 are welded by electron beam welding while a gap between them is filled up with another metal material (specifically a wire rod having a diameter of 1.5 mm and made of 6-4Ti, like the head main body 66 ). Also, the head main body 66 and the crown-side member 70 are fixed by adhesive.
  • the golf club head and its manufacturing method according to the invention since a gap between the metallic members with different thickness is filled up with another metal material, it is unnecessary to machine in advance the metallic members precisely so as not to cause a gap between the metallic members at the time of welding, and the cost for machining the metallic members is reduced. Though a gap between the metallic members with different thickness is filled up with another metal material, there is no sink in the weld zone by plasma welding, laser welding or electronic beam welding, whereby the weight control for the golf club head is relatively easy.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Golf Clubs (AREA)
US11/304,679 2004-12-17 2005-12-16 Golf club head and its manufacturing method Abandoned US20060135286A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPP2004-365993 2004-12-17
JP2004365993A JP2006167279A (ja) 2004-12-17 2004-12-17 ゴルフクラブヘッドおよびその製造方法

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US20060135286A1 true US20060135286A1 (en) 2006-06-22

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US11/304,679 Abandoned US20060135286A1 (en) 2004-12-17 2005-12-16 Golf club head and its manufacturing method

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US (1) US20060135286A1 (ja)
JP (1) JP2006167279A (ja)
KR (1) KR20060069225A (ja)
CN (1) CN1788816A (ja)
AU (1) AU2005242214A1 (ja)
GB (1) GB2421194A (ja)
TW (1) TW200621335A (ja)

Cited By (8)

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US20080029496A1 (en) * 2006-08-01 2008-02-07 Chon-Chen Lin Method for making a golf club head
US7794333B2 (en) 2008-02-21 2010-09-14 Sri Sports Limited Strike face insert
US20100317460A1 (en) * 2009-06-12 2010-12-16 Tomoya Hirano Golf club head and method for manufacturing the same
US20150126305A1 (en) * 2013-11-05 2015-05-07 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
WO2017197007A1 (en) * 2016-05-11 2017-11-16 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
US10695620B2 (en) 2013-11-05 2020-06-30 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
US11446553B2 (en) 2013-11-05 2022-09-20 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
US20230338789A1 (en) * 2022-04-20 2023-10-26 Acushnet Company Multi-material golf club head

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US7575524B2 (en) * 2006-12-06 2009-08-18 Taylor Made Golf Company, Inc. Golf clubs and club-heads comprising a face plate having a central recess and flanking recesses
US7662051B2 (en) * 2007-09-11 2010-02-16 Cindy Rhodes Golf head
US7828676B2 (en) 2008-03-28 2010-11-09 Bridgestone Sports Co., Ltd Golf club head
US9162115B1 (en) 2009-10-27 2015-10-20 Taylor Made Golf Company, Inc. Golf club head
US11801426B1 (en) * 2022-04-20 2023-10-31 Cobra Golf Incorporated Golf club head

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JP2003052867A (ja) * 2001-08-10 2003-02-25 Maruman Golf Corp ゴルフクラブヘッド
JP2004097276A (ja) * 2002-09-05 2004-04-02 Mizuno Corp ゴルフクラブヘッドおよびその製造方法ならびにゴルフクラブ
JP4112969B2 (ja) * 2002-12-26 2008-07-02 ダイワ精工株式会社 ゴルフクラブヘッド
WO2004078278A1 (ja) * 2003-09-11 2004-09-16 Maruman & Co., Ltd. ゴルフクラブヘッドの製造方法

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US5261663A (en) * 1989-06-12 1993-11-16 Donald A. Anderson Golf club head and method of forming same
US5423535A (en) * 1991-09-28 1995-06-13 Dunlop Slazenger International, Ltd. Golf club heads with face plates of varying specific gravity
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080029496A1 (en) * 2006-08-01 2008-02-07 Chon-Chen Lin Method for making a golf club head
US8105181B2 (en) 2008-02-21 2012-01-31 Sri Sports Limited Strike face insert
US7794333B2 (en) 2008-02-21 2010-09-14 Sri Sports Limited Strike face insert
US20100292026A1 (en) * 2008-02-21 2010-11-18 Sri Sports Limited Strike Face Insert
US7942757B2 (en) 2008-02-21 2011-05-17 Sri Sports Limited Strike face insert
US8506419B2 (en) * 2009-06-12 2013-08-13 Sri Sports Limited Golf club head and method for manufacturing the same
US20100317460A1 (en) * 2009-06-12 2010-12-16 Tomoya Hirano Golf club head and method for manufacturing the same
US20150126305A1 (en) * 2013-11-05 2015-05-07 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
GB2535077B (en) * 2013-11-05 2020-04-15 Karsten Mfg Corp Club heads with bounded face to body yield strength ratio and related methods
US10695620B2 (en) 2013-11-05 2020-06-30 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
US11446553B2 (en) 2013-11-05 2022-09-20 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
WO2017197007A1 (en) * 2016-05-11 2017-11-16 Karsten Manufacturing Corporation Club heads with bounded face to body yield strength ratio and related methods
US20230338789A1 (en) * 2022-04-20 2023-10-26 Acushnet Company Multi-material golf club head

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JP2006167279A (ja) 2006-06-29
AU2005242214A1 (en) 2006-07-06
CN1788816A (zh) 2006-06-21
GB2421194A (en) 2006-06-21
TW200621335A (en) 2006-07-01
GB0525335D0 (en) 2006-01-18

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