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| Number | Title | Issue Date |
| 7431667 | Golf club head with high moment of inertia A golf club head having a high moment of inertia is disclosed herein. The golf club head preferably has a volume ranging from 450 cubic centimeters to 475 cubic centimeters, a mass ranging from 180 grams to 225 grams, and a length ranging from 4.0 inches to 5.0 inch... | 10/07/2008 |
| 7402113 | Golf club head and golf club A golf club head and a golf club provided with the golf club head. The head has outer shell structure portions including a hosel portion, a face portion, a sole portion, a crown portion, and a side portion and a joining portion where a crown member used in the crown... | 07/22/2008 |
| 7367900 | Golf club head A hollow golf club head containing a face component made of a metal material and including a face plate forming a face portion of the head and a turnback extending backward from the face plate; a FRP component made of a fiber reinforced resin; and an elastomeric ins... | 05/06/2008 |
| 7361100 | Metal composite golf club head A golf club head is formed with a crown having an aperture with an arcuate rear edge and a forward edge that is substantially parallel to the striking face. The aperture is transected by an arcuate rib that extends from a region proximal the heel end of the crown to... | 04/22/2008 |
| 7338390 | Multi-material golf club head A golf club head in accordance with various aspects of the present invention, may have a higher volume and/or higher strength. The golf club head may comprise a frame structure with a composite matrix. The golf club head may also comprise a detachable face, allowing... | 03/04/2008 |
| 7303489 | Golf club A golf club head and a method of making a golf club head includes a framework that is applied to the rear portion of the club head. A heat shrinkable membrane is mounted to the framework, by either mechanical means or by application of a bonding agent, creating a ho... | 12/04/2007 |
| 7297074 | Golf club head A hollow golf club head which is composed of a metal part made of at least one kind of metal material and a FRP part made of a fiber reinforced resin, the metal part having a first lap joint part, and the FRP part having a second lap joint part being lap-jointed wit... | 11/20/2007 |
| 7281993 | Golf club head and manufacturing method of the same The invention prevents a crimple from being generated in a resin member. The invention provides a golf club head (1) including a head shell portion (M) made of a metal material and having an opening portion (O1), and a resin member (FR) made of a fiber... | 10/16/2007 |
| 7267620 | Golf club head A golf club head comprising a body and a face insert is provided. The body defines a front opening, and the face insert is attached at and closes the front opening. The face insert comprises prepreg plies having a fiber areal weight of less than 100 g/m2.... | 09/11/2007 |
| 7258624 | Golf club and method for manufacturing the same The partial crown portion member comprises: the edge frame made from metal; and the shell body provided inside the edge frame and made from resin enveloping the inner edge of the edge frame. Inside the edge frame, the plural through-holes penetrating the front surfa... | 08/21/2007 |
| 7258631 | Golf club head A golf club head (20) having optimized inertial properties and center of gravity is disclosed. The golf club head (20) preferably has a volume between 300 cubic centimeters and 500 cubic centimeters. The golf club head (20) has a center of gravi... | 08/21/2007 |
| 7255654 | Multiple material golf club head A golf club (40) having a club head (42) with a face component (60) and an aft-body (61) is disclosed herein. The face component (60) has a striking plate portion (72) and a return portion (74). The aft-body (61 | 08/14/2007 |
| 7244188 | Multi-piece golf club head with improved inertia A multi-piece iron-type golf club head with a substantial weight member is disclosed and claimed. The golf club head includes a plurality of body members. A first body member includes a face, a rear surface, and a hosel. A viscoelastic material is attached to the re... | 07/17/2007 |
| 7217199 | Hollow golf club head A hollow golf club head allowing to increase the repulsion and the degree of design freedom, while maintaining the durability. A hollow golf club head having a head body formed from a metal, wherein a hole is formed in the vicinity of the middle of a crown portion i... | 05/15/2007 |
| 7204768 | Hollow golf club head A hollow golf club head allowing to increase the repulsion and the degree of design freedom, while maintaining the durability. A hollow golf club head having a head body formed from a metal, wherein a hole is formed in the vicinity of the middle of a crown portion i... | 04/17/2007 |
| 7147571 | Transitioning hollow golf clubs The present invention relates to a set of golf club irons in which some of the club heads have a hollow space, and some of the club heads do not have a hollow space. The hollow space is preferably defined by a lower portion of the front face, a portion of the sole, ... | 12/12/2006 |
| 7147577 | Hollow golf club head A hollow golf club head enables to increase the bonding strength of an outer shell member made of metal and an outer shell member made of fiber reinforced plastic. The hollow golf club head comprises a hollow golf club having a head body of a hollow structure formed... | 12/12/2006 |
| 7144334 | Golf club head A golf club head having a matrix layer composed of an interconnected reinforcement structure and a polymer material is disclosed herein. The matrix layer provides the golf club head with a greater coefficient of restitution during impact with a golf ball. The matrix... | 12/05/2006 |
| 7137903 | Transitioning hollow golf clubs The present invention relates to a set of golf club irons in which some of the club heads have a hollow space, and some of the club heads do not have a hollow space. The hollow space is preferably defined by a lower portion of the front face, a portion of the sole, ... | 11/21/2006 |
| 7134972 | Golf head A golf head includes a hollow head body defining a front opening and having a reinforcing portion that is made from a non-metal material, a striking plate received in the front opening and secured to the head body, and a plurality of first reinforcing metal ribs emb... | 11/14/2006 |
| 7128664 | Golf club head and manufacturing method thereof The present invention intends to prevent deviation and gap from being generated in a joining section of a golf club in which a head main body 10A and a surface material 10B are integrated by joining together and provide a high quality golf club head ha... | 10/31/2006 |
| 7070517 | Golf club head (Corporate Docket PU2150) A golf club head (20) having a center of gravity located relatively forward toward the front wall (30) or striking plate (40) of the golf club head (20), and a relatively high moment of inertia about the Iyy axis through the center of gra... | 07/04/2006 |
| 7008331 | Iron golf club head An iron golf club head includes a head body, a soft metal layer, a thin face plate and a solder layer. The head body has a recess at a front side thereof and an annular shoulder portion around the recess. The soft metal layer is disposed in the recess of the head bo... | 03/07/2006 |
| 6945876 | Hollow golf club head A hollow golf club head allowing to increase the repulsion and the degree of design freedom, while maintaining the durability. A hollow golf club head having a head body formed from a metal, wherein a hole is formed in the vicinity of the middle of a crown portion i... | 09/20/2005 |
| 6929565 | Golf club head A golf club head capable of obtaining both vibration damping performance and pleasant hitting sound by combining materials different in kind. This golf club head has a hollow structure, and a constitution where fiber reinforced plastic having a mass ratio of 4% or m... | 08/16/2005 |
| 6923733 | Golf club heads A golf club head includes a golf club head body, a striking plate mounted to the golf club head body, a hosel mounted to a side of the golf club head body, and a heel between the hosel and the striking plate. The heel includes a compartment for reducing a weight of ... | 08/02/2005 |
| 6916253 | Golf club A golf club with hollow construction, having a lowered center of gravity while retaining its inherent features such as a large moment of inertia and a deep position of the center of gravity. A head 1 comprises a face portion 10 for forming a face 3 | 07/12/2005 |
| 6669580 | Golf club head that optimizes products of inertia A golf club having products of inertia Ixy and Ixz with absolute values below 100 g-cm2 and a positive product of inertia Iyz is disclosed herein. The golf club has a large volume, a high moment of inertia, or both. Preferably, the moment of in... | 12/30/2003 |
| 6592466 | Sound enhance composite golf club head A golf club having a club head composed of a composite material and having an enhanced sound during impact with a golf ball. The golf club head also has a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions s... | 07/15/2003 |
| 6547676 | Golf club head that optimizes products of inertia A golf club having products of inertia Ixy, Ixz, and Iyz with absolute values below 100 g-cm2 is disclosed herein. The golf club has a large volume, a high moment of inertia, or both. Preferably, the moment of inertia, Izz, of the golf club hea... | 04/15/2003 |
| 6527650 | Internal weighting for a composite golf club head A golf club head composed of a composite material and having a plurality of weight members in a ribbon section is disclosed herein. The weight members are composed of a polymer material integrated with a high density metal such as tungsten. Each of the we... | 03/04/2003 |
| 6440008 | Composite golf club head A golf club having a club head with a striking plate composed of a composite material and having a thickness in the range of 0.010 to 0.250 inches is disclosed herein. The golf club head also has a coefficient of restitution greater than 0.8 under test co... | 08/27/2002 |
| 6435980 | Face coating for a golf club head A composite golf club head having a club having a striking plate portion with a texture coating is disclosed herein. The golf club head has a crown component composed of a plurality of plies of pre-preg material and a sole component composed of a pluralit... | 08/20/2002 |
| 6425832 | Golf club head that optimizes products of inertia A golf club having products of inertia Ixy, Ixz and Iyz with absolute values below 100 g-cm2 is disclosed herein. The golf club has a large volume, a high moment of inertia, or both. Preferably, the moment of inertia, Izz, of the golf club head... | 07/30/2002 |
| 6406378 | Sound enhanced composite golf club head A golf club having a club head composed of a composite material and having an enhanced sound during impact with a golf ball. The golf club head also has a coefficient of restitution greater than 0.8 under test conditions such as the USGA test conditions s... | 06/18/2002 |
| 6406381 | Composite golf club head and method of manufacturing A golf club having a club head with a striking plate composed of a composite material and having a thickness in the range of 0.010 to 0.250 inches is disclosed herein. The golf club head also has a coefficient of restitution greater than 0.8 under test co... | 06/18/2002 |
| 6402637 | Golf club head A golf club head which can be reduced in its thickness with no fear of impairing the durability and strength of the club head. A face portion of the golf club head is configured such that the vertical dimension of the face portion is smaller than the hori... | 06/11/2002 |
| 6386990 | Composite golf club head with integral weight strip A golf club head composed of a composite material and having a metal weight strip in a ribbon section is disclosed herein. The metal strip may be composed of copper, tungsten or a similar metal. The composite golf club head may also have a sole plate comp... | 05/14/2002 |
| 6258183 | Molded product of amorphous metal and manufacturing method for the same A metal material is placed on a lower mold of a press metal mold which has an upper mold and the lower mold not having engagement portions. The metal material is fused by a high energy heat source, and obtained molten metal over a melting point is pressed... | 07/10/2001 |
| 6010411 | Densified loaded films in composite golf club heads The present invention is directed to improved heads for golf clubs, including iron, wood and putter type golf club heads, and to methods of manufacturing such golf club heads. One or more layers of a loaded film are used to define in part the overall weig... | 01/04/2000 |
