| Patent Number |
Title Of Patent |
Date Issued |
| 7281993 |
Golf club head and manufacturing method of the same |
October 16, 2007 |
| 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 reinforced resin arranged in the |
| 7278930 |
Golf ball |
October 9, 2007 |
| Golf ball 2 has a core 4, a mid layer 6, a reinforcing layer 8, a cover 10 and dimples 12. Base polymer of the mid layer 6 includes an ionomer resin as a principal component. The reinforcing layer 8 includes a thermosetting resin as a base polymer. Base polymer of the cover 10 includ |
| 7278925 |
Golf club head |
October 9, 2007 |
| This present invention relates to a hollow golf club head comprising a face portion whose front face defines a club face for hitting a ball, wherein said face portion comprises a center portion forming an area having a sweet spot, and a peripheral portion surrounding the center porti |
| 7273574 |
Golf ball manufacturing method |
September 25, 2007 |
| A golf ball manufacturing method comprises a step of holding a spew (B) of a seam (C) of a golf ball (G) in a predetermined position, a step of deciding whether the position of the seam (C) is normal, and a step of distinguishing the necessity of the processing of the golf ball based on |
| 7273430 |
Tennis racket frame |
September 25, 2007 |
| A tennis racket frame is composed of a laminate of prepregs each containing carbon fibers serving as a reinforcing fiber thereof. At least one part of layers of the laminate is formed as a hard layer consisting of a prepreg composed of the reinforcing carbon fibers and a hard carbon |
| 7270615 |
Golf ball |
September 18, 2007 |
| Golf ball 2 has a core 4, a mid layer 6, a reinforcing layer 8 and a cover 10. Base polymer of the mid layer 6 includes an ionomer resin as a principal component. The mid layer 6 has a hardness Hm as measured with a Shore D type hardness scale of equal to or greater than 55. Base polymer |
| 7270609 |
Golf putter head |
September 18, 2007 |
| The present invention is a golf putter head wherein the second moment among the three inertial moments described below shows a minimum value in a state in which the head is placed on a horizontal plane at a specified lie angle and loft angle: First moment: inertial moment of the head |
| 7261650 |
Golf ball |
August 28, 2007 |
| Golf ball 2 has a core 4, a mid layer 5 and a cover 6. The mid layer 5 has a hardness of 50 or greater and 70 or less, and a thickness of equal to or greater than 0.8 mm. The cover 6 has a hardness of less than 57, and a thickness of less than 1.5 mm. The golf ball 2 has numerous double |
| 7261649 |
Golf ball |
August 28, 2007 |
| Golf ball 2 has a center 8, a mid layer 10, a cover 6 and dimples 12. The mid layer 10 includes a styrene block-containing thermoplastic elastomer having a material hardness of less than 10, and an ethylene-(meth)acrylic acid copolymer-based ionomer resin having a material hardness of 50 |
| 7261645 |
Golf club head |
August 28, 2007 |
| A hollow golf club head comprises: a metal member made of at least one kind of metal material having at least one opening in a crown portion thereof; and a FRP member made of a fiber reinforced resin attached to the metal member so as to cover the opening, the fiber reinforced resin |
| 7254492 |
Method of computing energy loss generated in viscoelastic material and method for evaluating ene |
August 7, 2007 |
| A method of computing an energy loss generated in a viscoelastic material, including analyzing a dynamic behavior of a to-be-analyzed object composed of the viscoelastic material by a numerical analysis method; and computing the energy loss of the object momently when the object makes |
| 7252602 |
Golf ball |
August 7, 2007 |
| Golf ball 2 has numerous double radius dimples and numerous triple radius dimples on the surface thereof. The double radius dimple has a first side wall face having a curvature radius R1, and a bottom face having a curvature radius R2 that is 5 times or more and 55 times or less greater |
| 7252599 |
Golf club head |
August 7, 2007 |
| A hollow golf club head is formed form a metal member with at least one opening. An FRP member made of a fiber reinforced resin is attached to the metal member to cover the opening. The metal member has at least one slit extending along at least a periphery of the opening and further |
| 7244192 |
Rubber composition for golf ball |
July 17, 2007 |
| The present invention provides a rubber composition for obtaining golf ball having good processability, excellent rebound characteristics and excellent durability. The present invention relates to a rubber composition for golf ball comprising a base rubber, a co-crosslinking agent, a |
| 7241230 |
Golf club head and method of making the same |
July 10, 2007 |
| A golf club head containing a face portion having a front face defining a club face for hitting a ball and a hollow portion provided behind the face portion, wherein the frequency F(fix) of a local minimum value of the first-order vibration mode in a frequency response function of the |
| 7235023 |
Iron type golf club set |
June 26, 2007 |
| The present invention provides an iron type golf club set of n (n: an integer equal to or more than three) numbers of iron type golf clubs having different head loft angles, wherein the head comprises a face plate, and a head main body provided with a face receiving portion supportin |
| 7232383 |
Three-piece solid golf ball |
June 19, 2007 |
| The present invention provides a three-piece solid golf ball having long flight distance by accomplishing low spin amount and high launch angle at the time of hitting, while maintaining good shot feel. The present invention relates to a three-piece solid golf ball comprising a core c |
| 7229583 |
Method of producing a golf ball |
June 12, 2007 |
| A method of producing a golf ball with uniform thickness by, eliminating defective air between the cover and the core, an insufficient thickness of the cover and an uneven thickness of the cover wherein in the step of heat and compression molding to cover the core or an intermediate laye |
| 7226557 |
Method of producing a golf ball |
June 5, 2007 |
| There is provided a method of producing a golf ball, capable of forming a cover to have a uniform thickness to produce a golf ball excellent in resistance to abrasion. The method includes a step to subject a cover material mainly composed of a thermoplastic resin to heat and compression |
| 7223183 |
Golf ball |
May 29, 2007 |
| Two-tiered dimples 8 of a golf ball have a first recessed part X and a second recessed part Y. The first recessed part X substantially forms a part of a spherical shape. The first recessed part X includes a first opening 14, a side wall curved face 16 and a flat face 18. The second r |
| 7223182 |
Floatable golf ball for driving range |
May 29, 2007 |
| The present invention provides a floatable golf ball for a driving range having excellent durability and good shot feel. The present invention relates to a floatable golf ball for a driving range comprising a core and a cover covering the core, wherein the cover has a flexural modulus |
| 7223179 |
Method of designing golf club head and golf club head |
May 29, 2007 |
| A method of designing a golf club head, including the steps of using a golf club head model and a golf ball model both of which are composed of a plurality of finite elements; impacting the head model against the ball model; and measuring a time period T2 in which the face of the head mo |
| 7223086 |
Golf ball manufacturing apparatus |
May 29, 2007 |
| A golf ball manufacturing apparatus comprises a mold including a cavity for forming a golf ball, an injection molding machine for supplying a molten resin to the mold, a supply portion for supplying a resin pellet to the injection molding machine, and a crushing machine for crushing a |
| 7220190 |
Golf club head |
May 22, 2007 |
| A golf club head having a face portion that hits a ball, which includes: a center thick portion; a portion of a varying thickness in annular form; and a peripheral thin portion provided around the portion of a varying thickness, where the peripheral thin portion of which the thickness is |
| 7217203 |
Tennis racket |
May 15, 2007 |
| A tennis racket having a racket frame defining a ball-hitting face, wherein if the upper part of the ball-hitting face is set as a 0-degree position, a string protection member is mounted on at least one portion of a head part of the racket frame in a range from a clockwise 45-degree |
| 7208533 |
Cover composition for golf ball |
April 24, 2007 |
| A cover composition for a golf ball includes: an isocyanate group-terminated urethane prepolymer containing an isocyanate component derived from at least one diisocyanate selected from the group consisting of 4,4'-dicyclohexylmethane diisocyanate, isophorone diisocyanate, and cyclohe |
| 7208114 |
Golf ball manufacturing method |
April 24, 2007 |
| A golf ball is provided which contains a core and a cover. In the forming of the cover, two half shells made from a thermoplastic resinous composition are used to cover the core, the composite is put in a spherical mold, then, the mold is clamped. Thereafter, the thermoplastic resin |
| 7207904 |
Golf ball |
April 24, 2007 |
| A golf ball has a core, and a cover for covering the core. The cover contains 0.5 to 10 parts by mass of a titanium oxide relative to 100 parts by mass of a base resin composing the cover, and the titanium oxide is surface-treated with an oxide including at least one element selected |
| 7207901 |
Golf club head |
April 24, 2007 |
| A golf club head comprises a main body and a coating film covering a metallic surface of the main body, wherein the coating film comprises a clear foundation layer formed on the metallic surface and containing acid-modified polyolefin based resin as its base resin, and a colored clea |
| 7201862 |
Method of the production of a golf ball |
April 10, 2007 |
| A ball body is formed with a mold having upper and lower mold half. Dimples 16 having a shape inverted from the shape of the pimples of the mold are formed on the ball body. The dimples 16 in the vicinity of the equatorial line have a size in the meridional direction D1 being greater |
| 7201680 |
Racket frame |
April 10, 2007 |
| A racket frame including a grip part, a shaft part, a throat part, and a head part formed hollowly with a fiber reinforced resin and having a weight not less than 100 g nor more than 270 g. The racket frame is provided with a dynamic damper comprising a mass member and a viscoelastic |
| 7201674 |
Golf ball |
April 10, 2007 |
| Golf ball 2 has a core 4, a mid layer 5 and a cover 6. This mid layer 5 includes 20 parts by weight or greater and 60 parts by weight or less of a styrene block-containing thermoplastic elastomer having a material hardness of less than 10, and 40 parts by weight or greater and 80 parts |
| 7192366 |
Three-piece solid golf ball |
March 20, 2007 |
| The present invention provides a three-piece solid golf ball, of which flight distance is improved by accomplishing high launch angle and low spin amount in initial flight performance, while maintaining soft and good shot feel when hitting at low head speed. The present invention rel |
| 7189165 |
Golf club head |
March 13, 2007 |
| A golf club head comprises: a hollow main body made of at least one metal material and provided in at least one of a crown portion and a sole portion of the head with an opening; and an FRP part covering said opening and made of at least one resinous material reinforced with fibers, |
| 7182700 |
Golf ball |
February 27, 2007 |
| Golf ball 1 has a core 2, a mid layer 3 and a cover 4. The mid layer 3 comprises a matrix of which base material is a rubber or a synthetic resin, and solid particles which are dispersed in this matrix. Hardness Hg of the solid particles is greater than hardness Hm of the matrix. Dif |
| 7175546 |
Golf ball |
February 13, 2007 |
| Golf ball 1 has multisurface dimples 4a. The multisurface dimple 4a has a central concave face 7 and six inclined faces 8. The inclined face 8 extends obliquely upward from the edge 9 of the central concave face 7 up to the phantom sphere. Two multisurface dimples 4a are adjacent each |
| 7175540 |
Golf putter |
February 13, 2007 |
| In a golf putter including a putter head including a head body formed from a metal, and a face insert formed from an elastic material and fixed in a putter face of the head body, the face insert includes a varied thickness portion increased in thickness from a zone adjacent a sweet spot |
| 7175539 |
Golf club head |
February 13, 2007 |
| A golf club head including a basal body having a metallic surface, and a multilayer coating deposited on the metallic surface, wherein the multilayer coating includes a clear first layer deposited on the metallic surface and a colored clear second layer deposited on the clear first l |
| 7172520 |
Golf ball |
February 6, 2007 |
| A golf ball excellent in durability and feel is formed of a polymer compound containing a ternary composite formed of a rubber component, a polyolefin component and a nylon component. In particular, it is a golf ball formed of a core and a cover arranged to cover the core, the core b |
| 7169066 |
Golf ball |
January 30, 2007 |
| Golf ball 1 has a large number of dimples 2 on its surface. A surface area occupation ratio Y of these dimples 2 is equal to or greater than 75%. A ratio R1 of the diameter of the maximum dimple d.sub.max to the diameter D of this golf ball 1 is 11.0% or greater and 18.0% or less. Total |
| 7163473 |
Golf ball |
January 16, 2007 |
| Golf ball 1 has numerous dimples 4 on its surface. The dimple 4 comprises an inclined face 6, a circular flat face 7, an annular groove 8 and a round flat face 9. Surface area s1 is calculated by summing up the surface area of the inclined face 6, the surface area of the circular fla |
| 7160206 |
Golf ball and method of manufacturing the same |
January 9, 2007 |
| A golf ball with favorable rebound and flight performances without impairing durability, and a method of manufacturing the same are provided. There are provided a golf ball having a solid core and a cover surrounding the solid core, characterized in that the solid core is composed of |
| 7160205 |
Golf club head |
January 9, 2007 |
| A golf club head whose head volume is in a range of from 355 to 450 cc comprises a hollow body comprising a face portion and sole portion each made of a metal material, and the hollow body has a structure producing a ball-hitting sound whose maximum sound pressure level occurs around 6.3 |
| 7153926 |
Golf ball and process for producing the same |
December 26, 2006 |
| Disclosed is a golf ball, which includes a core and a polyurethane cover covering over the core. A composition of the cover includes a thermoplastic polyurethane elastomer which contains, as its component, a compound having three or more reactive functional groups capable of reacting |
| 7153223 |
Golf ball |
December 26, 2006 |
| Golf ball 1 has the diameter D of 43.0 mm or greater and 50.0 mm or less. This golf ball 1 includes a core 2 and a cover 3. The core 2 is formed by crosslinking of a rubber composition. The cover 3 is composed of a resin composition. Dimples 4 are formed on the surface of the cover 3. Th |
| 7150686 |
Golf club head |
December 19, 2006 |
| A golf club head comprises a face portion having a front face defining a club face for hitting a ball and a back surface, a sole portion extending backwards from a lower edge of the face portion, and a backside wall extending upwards from the sole portion and having a free upper end, |
| 7150618 |
Mold for golf ball |
December 19, 2006 |
| A mold for a golf ball includes an upper portion (1) and a lower portion (3). A large number of projections (7) for dimple formation are provided on a cavity surface (5) of each of the upper portion (1) and the lower portion (3). A parting surface (8) of the upper portion (1) and the low |
| 7148290 |
Rubber composition for golf ball |
December 12, 2006 |
| A rubber composition for a golf ball having excellent rebound characteristics and excellent durability, and showing good workability, which contains a base rubber, a co-crosslinking agent, an organic peroxide and an inorganic filler, wherein the base rubber includes a polybutadiene c |
| 7147572 |
Wood type golf club head |
December 12, 2006 |
| The invention provides a wood type golf club head, wherein in a measuring state where a center line of a shaft axis arranged within a vertical plane and is inclined at a set lie angle, and a face angle is set to zero, a distance (d) of center of gravity corresponding to a shortest di |
| 7144337 |
Iron type golf club head |
December 5, 2006 |
| An iron type golf club head is provided with an annular trench including: an upper side trench portion that is positioned above the horizontal border line on the face surface through the sweet spot; and a lower side trench portion that is positioned beneath the above described border |
