Junnosuke Wada has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
Abstract: An object of the present invention is to provide a golf ball having excellent scuff resistance and spin performance, and a satisfactory rebound property. The golf ball has a core 3, an intermediate layer 5 covering the core 3, an inner cover 7 covering the intermediate layer 5, and an outer cover 15 covering the inner cover 7, wherein the outer cover 15 includes a neutralized product containing an ethylene-unsaturated carboxylic acid-alkyl(meth)acrylate ternary copolymer having a weight average molecular weight (Mw) of 80,000 to 500,000 and an ethylene-acrylic acid or ethylene-methacrylic acid copolymer having a weight average molecular weight (Mw) of 2,000 to 30,000, and the inner cover 7 also includes the neutralized product.
Abstract: The present invention provides a golf ball that achieves a satisfactorily long carry distance when hit with a driver and that accurately generates a desirable amount of backspin in an approach shot. The golf ball of the present invention has a spherical main part, a plurality of ribs formed on the surface of the main part, an interlayer that is placed in depressions surrounded by the ribs and has a hardness greater than that of the ribs, an inner cover that covers the interlayer, and an outer cover that covers the inner cover and has a hardness lower than the inner cover.