Abstract: A method of creating a plot diagram having plotted thereon a plurality of points, the plurality of points respectively corresponding to a plurality of shafts for a golf club, includes defining a plot region having a first axis of a first index; deriving values of the first index for the shafts; and plotting points, in the plot region, corresponding to the shafts at positions corresponding to the values of the first index. The first index represents a characteristic value of a shaft and is a value that is derived using stiffness values in a plurality of positions of the shaft along a longitudinal direction of the shaft. The method further includes printing a plurality of sub-regions on the plot region in such a mode that the plurality of sub-regions are distinguishable from each other by a user, the plurality of sub-regions respectively corresponding to different types of golfer.

Abstract: To provide a golf club shaft that can provide a moderate rigidity and enhance an impact strength. A shaft 6 includes full length layers s3, s4, s7, s8 and s9 provided wholly in a longitudinal direction of the shaft, and tip end partial layers s1, s2, s10, s11 and s12 provided on a tip end part of the shaft. The full length layers include bias layers s3 and s4 and straight layers s8 and s9. The tip end partial layer includes an inner glass fiber reinforced layer s1, and an outer low elastic carbon fiber reinforced layer s10 or an outer glass fiber reinforced layer s10 which is disposed outside the inner glass fiber reinforced layer s1. The low elastic carbon fiber has a tensile elastic modulus of 22 ton/mm2 or less. In the shaft 6, a shaft weight in terms of 46 inches is 55 g or less.

Abstract: A golf club 2 includes a head 4, a shaft 6 and a grip 8. The shaft 6 includes a plurality of layers, a tip end Tp and a butt end Bt. If a distance between a center of gravity of the shaft and the butt end Bt is defined as Lg (mm), a shaft full length is defined as Ls (mm), and a ratio of the distance Lg to the shaft full length Ls is defined as a ratio of the center of gravity of the shaft, the ratio of the center of gravity of the shaft is 44.5% or less. If a torsional rigidity at a point of 90 mm distant from the tip end Tp is defined as GJt (kgf·m2), and a torsional rigidity at a point of 210 mm distant from the butt end Bt is defined as GJb (kgf·m2), GJb/GJt is 5.5 or less.

Abstract: To provide a golf club shaft that can provide a moderate rigidity and enhance an impact strength. A shaft 6 includes full length layers s3, s4, s7, s8 and s9 provided wholly in a longitudinal direction of the shaft, and tip end partial layers s1, s2, s10, s11 and s12 provided on a tip end part of the shaft. The full length layers include bias layers s3 and s4 and straight layers s8 and s9. The tip end partial layer includes an inner glass fiber reinforced layer s1, and an outer low elastic carbon fiber reinforced layer s10 or an outer glass fiber reinforced layer s10 which is disposed outside the inner glass fiber reinforced layer s1. The low elastic carbon fiber has a tensile elastic modulus of 22 ton/mm2 or less. In the shaft 6, a shaft weight in terms of 46 inches is 55 g or less.

Abstract: A shaft 6 includes a first butt partial sheet s4 and a second butt partial sheet s5. The first butt partial sheet s4 includes a first tapered part TP1. The second butt partial sheet includes a second tapered part TP2. The first butt partial sheet s4 and the second butt partial sheet s5 satisfy the following (1) to (4). L11, L12, L21, Lt1 and Lt2 are shown in FIG. 3.

Abstract: [Object] To provide a golf club shaft that can provide a moderate rigidity and enhance an impact strength. [Solution] A shaft 6 includes full length layers s3, s4, s7, s8 and s9 provided wholly in a longitudinal direction of the shaft, and tip end partial layers s1, s2, s10, s11 and s12 provided on a tip end part of the shaft. The full length layers include bias layers s3 and s4 and straight layers s8 and s9. The tip end partial layer includes an inner glass fiber reinforced layer s1, and an outer low elastic carbon fiber reinforced layer s10 or an outer glass fiber reinforced layer s10 which is disposed outside the inner glass fiber reinforced layer s1. The low elastic carbon fiber has a tensile elastic modulus of 22 ton/mm2 or less. In the shaft 6, a shaft weight in terms of 46 inches is 55 g or less.

Abstract: A golf club 2 includes a head 4, a shaft 6 and a grip 8. The shaft 6 includes a plurality of layers, a tip end Tp and a butt end Bt. If a distance between a center of gravity of the shaft and the butt end Bt is defined as Lg (mm), a shaft full length is defined as Ls (mm), and a ratio of the distance Lg to the shaft full length Ls is defined as a ratio of the center of gravity of the shaft, the ratio of the center of gravity of the shaft is 44.5% or less. If a torsional rigidity at a point of 90 mm distant from the tip end Tp is defined as GJt (kgf·m2), and a torsional rigidity at a point of 210 mm distant from the butt end Bt is defined as GJb (kgf·m2), GJb/GJt is 5.5 or less.

Abstract: A user is able to intuitively understand differences in shaft characteristics relating to the distribution of shaft stiffness values between a plurality of types of shafts. A printed material on which is printed a plot diagram is provided. This plot diagram has plotted thereon a plurality of points respectively representing characteristic values of a plurality of shafts for a golf club, and includes a plot region having an axis that represents a first index. The first index is determined based on the distribution of stiffness values of the shaft in a direction along the shaft.

Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).

Abstract: A shaft 6 includes a first butt partial sheet s4 and a second butt partial sheet s5. The first butt partial sheet s4 includes a first tapered part TP1. The second butt partial sheet includes a second tapered part TP2. The first butt partial sheet s4 and the second butt partial sheet s5 satisfy the following (1) to (4). L11, L12, L21, Lt1 and Lt2 are shown in FIG. 3.

Abstract: [Object] To provide a golf club shaft that can provide a moderate rigidity and enhance an impact strength. [Solution] A shaft 6 includes full length layers s3, s4, s7, s8 and s9 provided wholly in a longitudinal direction of the shaft, and tip end partial layers s1, s2, s10, s11 and s12 provided on a tip end part of the shaft. The full length layers include bias layers s3 and s4 and straight layers s8 and s9. The tip end partial layer includes an inner glass fiber reinforced layer s1, and an outer low elastic carbon fiber reinforced layer s10 or an outer glass fiber reinforced layer s10 which is disposed outside the inner glass fiber reinforced layer s1. The low elastic carbon fiber has a tensile elastic modulus of 22 ton/mm2 or less. In the shaft 6, a shaft weight in terms of 46 inches is 55 g or less.

Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).

Abstract: A section where the tip side partial bias layer exists in an axis direction of the shaft is defined as a section T; a section where the back end side partial bias layer exists in the axis direction of the shaft is defined as a section B; and a shaft section inserted into a hosel of a head in the axis direction of the shaft is defined as a section H. A part of the section T overlaps with the section H. An overlapping section TB in which the section T overlaps with the section B exists. The whole overlapping section TB is located on a back end Bt side of the shaft from the section H. A center position Px of the overlapping section TB is located on a tip side of the shaft from a center position Pc of the shaft.

Abstract: A golf club shaft is manufactured using a plurality of prepreg sheets a1 to a8. The plurality of prepreg sheets a1 to a8 includes full length sheets a2 to a7 disposed all over in a shaft axis direction and partial sheets a1 and a8 partially disposed in the shaft axis direction. The number of plies is substantially an integer in all the full length sheets a2 to a7. The full length sheets a2 to a7 include four or more bias sheets a2 to a5. Circumferential winding start positions of the bias sheets a2 to a5 are dispersed in four or more positions. Preferably, the circumferential winding start positions of the full length sheets a2 to a7 are dispersed in five or more positions.

Abstract: A golf club shaft has a tip end to which a golf club head is attached and a butt end to which a grip is attached, wherein the shaft is composed of a fiber reinforced resin having a fiber layer, the fiber layer contains a bias layer having bias fibers oriented at an angle with respect to an axial direction of the shaft, the bias layer includes a tip-side bias layer extending from the tip end toward the butt end and having a butt-side end terminating without reaching the butt end and a butt-side bias layer extending from the butt end toward the tip end and having a tip-side end terminating without reaching the tip end, and bias fibers in the tip-side bias layer has a tensile elastic modulus smaller than that of bias fibers of the butt-side bias layer.

Abstract: A golf club 2 is provided with a head 4, a shaft 6, a grip 8, a head cavity body 10 mounted to the head, a grip cavity body 40 mounted to the grip 8, a head weight 12 attachable to/detachable from the head cavity body 10, and a grip weight 12 attachable to/detachable from the grip cavity body 40. A material of the grip cavity body is a polymer. A material of the head cavity body is a polymer. Preferably, the head weight 12 is attachable to/detachable from the grip cavity body 40. Preferably, the grip weight 12 is attachable to/detachable from the head cavity body 40. Preferably, in the golf club 2, a club mass can be adjusted without substantially changing a club balance.

Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).

Abstract: A golf club 2 is provided with a head 4, a shaft 6, a grip 8, a head cavity body 10 mounted to the head, a grip cavity body 40 mounted to the grip 8, a head weight 12 attachable to/detachable from the head cavity body 10, and a grip weight 12 attachable to/detachable from the grip cavity body 40. A material of the grip cavity body is a polymer. A material of the head cavity body is a polymer. Preferably, the head weight 12 is attachable to/detachable from the grip cavity body 40. Preferably, the grip weight 12 is attachable to/detachable from the head cavity body 40. Preferably, in the golf club 2, a club mass can be adjusted without substantially changing a club balance.

Abstract: A solar cell module includes a base body, a plurality of solar cell elements arranged at intervals over the base body, a resin layer disposed on the solar cell elements and comprising a plurality of recesses on its surface facing opposite to the solar cell elements, and a protective sheet disposed on the resin layer. The protective sheet comprises a plurality of protrusions which correspond to the recesses of the resin layer and which are in contact with the recesses. The height of first protrusion at a location corresponding to the interval between the solar cell elements among the plurality of protrusions is higher than the height of second protrusion at a location corresponding to the solar cell element among the plurality of protrusions. The interval between adjacent ones of the second protrusions in a portion corresponding to an end portion of the base body in longer than the interval between adjacent ones of the second protrusions in a portion corresponding to a central portion of the base body.

Abstract: A surface electrode (5) is installed on the light receiving surface of a solar cell element, the surface electrode (5) comprises three bus bar electrodes (5a) for extracting light-produced at the solar cell element to the outside and collecting finger electrodes (5b) connected to these bus bar electrodes (5a), and the bus bar electrodes (5a) are not less than 0.5 mm and not more than 2 mm in width and the finger electrodes (5b) are not less than 0.05 mm and not more than 0.1 mm in width. A high-efficient solar cell module can be obtained with substantially lowered resistance by increasing the number of bus bar electrode (5a) and thereby decreasing the lengths of the finger electrodes (5b).