Golf ball with built-in module including electronic circuit and power source
AssigneeBridgestone Sports Co., Ltd.
InventorAtsushi Komatsu
Life of this patent
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Abstract
A golf ball according to the present invention includes: a module including an electronic circuit and its power source; a protective layer that surrounds an outer periphery of the module and is formed from a material having a Shore D hardness of at least 60; a core that surrounds an outer periphery of the protective layer; and a cover that surrounds an outer periphery of the core. A weight may be arranged on a surface of the protective layer. A difference between a value MOImax of the moment of inertia in a direction in which the moment of inertia of the golf ball is maximum and a value MOImin of the moment of inertia in a direction in which the moment of inertia of the golf ball is minimum is at most 1.0 g·cm2.
Claims8
A golf ball with a built-in module, comprising:
- a module including an electronic circuit and a power source;
- a protective layer that surrounds an outer periphery of the module and is formed from a material having a Shore D hardness of at least 60;
- a core that surrounds an outer periphery of the protective layer;
- and
- a cover that surrounds an outer periphery of the core,
- wherein a difference between a value MOImax of a moment of inertia in a direction in which the moment of inertia of the golf ball is maximum and a value MOImin of the moment of inertia in a direction in which the moment of inertia of the golf ball is minimum is at most 1.0 g cm2,
- wherein the protective layer or the core comprises a weight or a cavity, and
- wherein a plurality of the weights or the cavities are arranged in symmetrical positions with respect to the module.
Dependencies are inferred from the claim text.