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| Number | Title | Issue Date |
| 7402117 | Racket with a center of gravity approximate to a center of a rubber sheet A racket is described, with a center of gravity thereof being approximate to a center of a rubber sheet of the racket, and a center of gravity that moves approximately to the center of rubber sheet and is located in a high ball-strike area. The racket has a substant... | 07/22/2008 |
| 7371198 | Racket frame A racket frame has a head hoop, a connecting segment, a handle and two prestressing devices. The head hoop has a bottom end and a string. The connecting segment is connected with the head hoop and has a yoke, two shafts and a throat. The yoke is formed on the bottom... | 05/13/2008 |
| 7354354 | Article comprising a fine-grained metallic material and a polymeric material Lightweight articles comprising a polymeric material at least partially coated with a fine-grained metallic material are disclosed. The fine-grained metallic material has an average grain size of 2 nm to 5,000 nm, a thickness between 25 micron and 5 cm, and a hardne... | 04/08/2008 |
| 7310895 | Shoe with sensors, controller and active-response elements and method for use thereof Active-response golf shoes are disclosed. The golf shoes include at least one sensor, a controller, and at least one active-response element. The sensor and controller operate to rapidly determine if a golfer is walking or swinging a golf club. Once this determinati... | 12/25/2007 |
| 7309299 | Sports racquet with frame openings A sports racquet has a plurality of opposed string holes for anchoring the ends of the strings, at least one pair of contiguous string holes are replaced with an enlarged string hole having opposed bearing surfaces for securing the ends of a pair of contiguous strin... | 12/18/2007 |
| 7273430 | Tennis racket frame 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 ... | 09/25/2007 |
| 7247373 | Racquet string A racquet string includes a core component whose principal component is a synthetic fiber, and a surface resin component, wherein fullerenes or by-product carbon particles derived from manufacture of fullerenes are blended into the surface resin component, and where... | 07/24/2007 |
| 7229369 | Ball sport racquet especially tennis racquet In a ball sport racquet, for example, a tennis racquet, made up of a main or racquet head frame, a throat with a throat bridge and side bridges diverging to the throat bridge and extending into a shaft, and strings fastened on the main frame and on the throat bridge... | 06/12/2007 |
| 7217203 | Tennis racket 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 c... | 05/15/2007 |
| 7211010 | Reinforcing member for a badminton racquet A reinforcing member for a badminton racquet wherein the racquet extends along a longitudinal axis and includes a frame having a tubular hoop portion supporting a string bed and a tubular handle portion. The reinforcing member includes a generally T-shaped body havi... | 05/01/2007 |
| 7201680 | Racket frame 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 ... | 04/10/2007 |
| 7144341 | Sports racquet with deflection enhancing string bed A racquet for hitting a projectile has a stem, which is a handle or a shaft with a handle, and a racquet head with a frame extending from the handle and supporting a tensioned string bed defining a sweet spot. The frame has an upper portion on an opposing end of the... | 12/05/2006 |
| 7140984 | Racket for ball games and production process The present invention relates to an improved racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket comprising a frame consisting of a racket head and a handle portion connected thereto and ... | 11/28/2006 |
| 7140986 | Tennis racquet equipped with a tennis ball retriever A highly specific type of hooked materials, when applied to the shoulder of a tennis racquet, have been found to tangentially hook onto the nap of a tennis ball and allow the ball to be lifted from the court. Hooked materials characterized as comprising a series of ... | 11/28/2006 |
| 7137912 | Tennis racket In a tennis racket having a racket frame composed of a fiber reinforced resin, the moment of inertia Ic of the tennis racket in a center direction thereof is set to not less than 13000 g·cm2 nor more than 17000 g·cm2, the moment of inertia Ig... | 11/21/2006 |
| 7131640 | Isolator mount for shock and vibration An isolator mount for the active dissipation of shocks and vibrations is presented. The invention includes at least one energy dissipating element disposed between deflectable elements so as to provide soft damping for small disturbance excitations, yet remaining su... | 11/07/2006 |
| 7131920 | Racket frame A racket frame including a first laminate composed of a plurality of first prepregs consisting of fiber reinforced resin and a second prepreg, consisting of fiber reinforced resin, which is layered on the first laminate. The first laminate has a loss factor (=tan δ... | 11/07/2006 |
| 7081056 | Sports racket having a uniform string structure A sports racket, for tennis and the like sports, has an elongated handle attached to a head having a racket face, which is spanned by a uniform string structure. The head has four sides, forming a non-elliptical shape, in which the opposite sides are substantially p... | 07/25/2006 |
| 7081055 | Method for making rackets with shock absorbing members A racket includes a head and a shaft, a throat is connected between the head and the shaft. Shock absorbing members are installed to desired positions of the racket so as to reduce impact transferred to the player's hand. Two throat extensions extend from the head a... | 07/25/2006 |
| 7077767 | Racket for ball games and production process The present invention relates to a racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket comprising a frame consisting of a racket head and a handle portion connected thereto and being form... | 07/18/2006 |
| 7077768 | Composite racquet with double tube head frame A sports racquet frame is built of a composite of laminations of fibrous material as impregnated by a thermosetting resin. The head section of the frame has an upper tube preferably disposed above the string bed plane and a lower tube preferably disposed below the s... | 07/18/2006 |
| 7074142 | Racket frame A tennis racket frame (10), including a sleeve composed of a fiber reinforced resin, having a weight not less than 180 g nor more than 270 g, when strings are not mounted in a ball-hitting face thereof surrounded with a head part thereof. Supposing that the s... | 07/11/2006 |
| 7070525 | Racket for ball games The present invention relates to a racket, in particular a tennis racket or squash racket exhibiting a particularly suitable stiffness and/or strength behavior. For this purpose, the ball game racket of the present invention comprises a racket head, a heart region a... | 07/04/2006 |
| 7059981 | Racket frame A racket frame (10) including a laminate having not less than two fiber reinforced resinous layers layered one upon another and one or more modified fiber reinforced resinous layers (20) each containing a modified resinous composition, as a matrix resi... | 06/13/2006 |
| 7044869 | Racket for ball games and production process The present invention relates to an improved racket for ball games, in particular a tennis racket, squash racket, badminton racket, racquet ball racket or paddle tennis racket, comprising a frame consisting of a racket head and a handle portion connected thereto and... | 05/16/2006 |
| 6994636 | Golf club head A golf club head (20) having a body (22) with a front wall (30) with an opening (32) and a face component (40) is disclosed herein. The face component (40) preferably has a striking plate (50), a crown extension (5... | 02/07/2006 |
| 6958104 | Sports racket with undulations in frame interior surface A sports racquet comprises a handle and a frame coupled to the handle. The frame includes an inner portion and an outer portion located substantially opposite the inner portion. The inner portion of the frame include a plurality of undulations that extend towards an... | 10/25/2005 |
| 6955618 | Adjustable tension stringed racquet A stringed racquet includes a built-in, user-adjustable mechanism for changing the tension of the strings. The user-adjustable mechanism is disposed in a cavity within the handle of the racquet, and includes a mandrel over which at least some of the vertical strands... | 10/18/2005 |
| 6688997 | Racket with reduced yoke rigidity A racket frame (1) has a pipe-shaped racket-frame body (2) made of a fiber reinforced resin and composed of a head (3), a throat part (4), a shaft part (5), and a grip part (6) sequentially arranged and a yoke (10) connected to the racket-frame body (2). ... | 02/10/2004 |
| 6663514 | Racket with vibration damping yoke A frame body (2) is formed separately from a yoke (10) connecting right and left parts of the frame body (2) to each other. The yoke (10) and the frame body (2) are connected to each other by a mechanical connection means, with both ends of the yoke (10) ... | 12/16/2003 |
| 6623384 | Dynamic damper and dynamic damper-installed tennis racket A dynamic damper (10) having a viscoelastic part (12) and a mass-adding part (11) laminated on the viscoelastic part (12). The dynamic damper (10) has a horizontal frame (13) and a vertical frame (14) disposed at both sides of the horizontal frame (13) in... | 09/23/2003 |
| 6623383 | Racquet with slidable weight A racket comprising a frame body having a face portion, a shaft portion, and a grip portion, and a groove in the length of 10% to 20% against the entire circumference of the frame comprising the face portion provided at two portions covering maximum width... | 09/23/2003 |
| 6579198 | Tennis racket with shaft having light weight metal piece A tennis racket comprises a frame; a shaft connected to the frame at one end thereof; a grip into which the shaft is inserted at the other end thereof; and a pair of lightweight metal pieces attached to the shaft. The frame and the shaft are formed from f... | 06/17/2003 |
| 6383099 | Tennis racquet A tennis racquet is provided with increased resistance against twisting of the racquet frame by increasing the width of the frame just above the area where the yoke and Y-shaped arms of the throat merge with the U-shaped upper portion of the head. The wid... | 05/07/2002 |
| 6358165 | Throatless squash racquet A throatless squash racquet includes a hollow tubular frame, preferably of graphite, bent to form a head in which the outer portion is generally circular. The opposing legs of the tubular frame curve inwardly toward one another and then converge linearly.... | 03/19/2002 |
| 6254500 | Racket with meshed titanium reinforcement A racket which is capable of mitigating the shock transmitted to the handle, improving the stability of the face of the head-frame, and enhancing the ability to damp the vibration imparted to the frame upon impact is disclosed. The racket has two meshed p... | 07/03/2001 |
| 6234921 | Sports racquets with tripod weighting A sports racquet has a lightweight frame and a pair of pods, having an increased cross-sectional width, at the 11 o'clock and 1 o'clock positions of the head. The pods also preferably have an increased wall thickness, or a molded-in weight element, so as ... | 05/22/2001 |
| 6159114 | Ultra-thin racquet frame A tennis racquet frame including a handle having a free end, a racquet head defined by a closed loop frame, a bridge that defines a portion of the closed loop frame of the racquet head and a throat connecting the racquet head to the handle, with the close... | 12/12/2000 |
| 6142893 | Sports racket which reduces variance on players performance An improved sports racket design which makes the velocity and angle of the hit ball more nearly independent of the point of impact of the ball on the string bed than in the prior art. There are seven structural elements included. Each of which contribute ... | 11/07/2000 |
| 6106417 | Lightweight tennis racket having high frequency A lightweight, high stiffness tennis racket includes a frame having a handle portion with butt end, head portion, and strings supported by the head portion. The racket is formed from a composite material including carbon fibers, titanium fibers, and epoxy... | 08/22/2000 |
