公开(公告)号：US20150105181A1

公开(公告)日：2015-04-16

申请号：US14193021

申请日：2014-02-28

Applicant: VOLVIK INC.

Inventor： In Hong HWANG ,  Kyung Ahn MOON

IPC: A63B37/00

CPC classification number: A63B37/0006 ,  A63B37/0003 ,  A63B37/0019 ,  A63B37/002

Abstract: Disclosed is a golf ball in which a plurality of dimples is arranged. The golf ball includes first dimples having the largest diameter and second dimples having the second largest diameter arranged on the surface of the golf ball divided into a spherical rhombic dodecahedron, the first dimples are arranged in an LF region of a radius of π/10 radian±10% around a first apex of the spherical rhombic dodecahedron, shared jointly by 4 spherical rhomi, and the second dimples are arranged in an LS region of a radius of π/20 radian±10% around a second apex of the spherical rhombic dodecahedron, shared jointly by 3 spherical rhombi. Thereby, air flow and pressure drag are uniformized in all of spherical polygons and thus, a carry distance of the golf ball may be improved.

Abstract translation: 公开了一种高尔夫球，其中布置有多个凹坑。 高尔夫球包括具有最大直径的第一凹坑和具有排列在高尔夫球表面上的第二大直径的第二凹坑，分成球形菱形十二​​面体，第一凹坑布置在半径为＆pgr / / 10的LF区域中 围绕球形菱形十二​​面体的第一顶点的弧度±10％，由4个球面rhomi共同共享，并且第二凹坑被布置在围绕球形第二顶点的半径为＆amp; 20弧度±10％的LS区域中 菱形十二面体，由3个球形菱形共同共享。 因此，空气流量和压力阻力在所有球形多边形中均匀化，因此可以提高高尔夫球的行进距离。

公开(公告)号：US20140004977A1

公开(公告)日：2014-01-02

申请号：US13603691

申请日：2012-09-05

Applicant: In Hong HWANG ,  Kyung Ahn Moon

Inventor： In Hong HWANG ,  Kyung Ahn Moon

IPC: A63B37/14

CPC classification number: A63B37/002 ,  A63B37/0004 ,  A63B37/0006 ,  A63B37/0007 ,  A63B37/0012 ,  A63B37/0015 ,  A63B37/0019

Abstract: Provided is a golf ball having an improved structure of a plurality of circular dimples formed on a surface of the golf ball to improve flight stability and increase a flying distance. With a golf ball having a plurality of circular dimples on a surface thereof, a plurality of concaves, each of which has a shape of an arc concentric with the circular dimple, are formed at a predetermined interval along a circumference of the entire or a portion of the circular dimple.

Abstract translation: 提供一种高尔夫球，其具有形成在高尔夫球表面上的多个圆形凹坑的改进结构，以提高飞行稳定性并增加飞行距离。 利用在其表面上具有多个圆形凹坑的高尔夫球，沿着整个或一部分的圆周以预定的间隔形成多个具有与圆形凹坑同心的圆弧形状的凹部 的圆形凹坑。

公开(公告)号：US20110300968A1

公开(公告)日：2011-12-08

申请号：US13118909

申请日：2011-05-31

Applicant: Hui Tak RYU ,  Jeong Su Kim ,  Gyu Tak Lee ,  Chan Rae Kim ,  Jae Ho Lee ,  Gi Min Ryu ,  Gyeong An Moon

Inventor： Hui Tak RYU ,  Jeong Su Kim ,  Gyu Tak Lee ,  Chan Rae Kim ,  Jae Ho Lee ,  Gi Min Ryu ,  Gyeong An Moon

IPC: A63B37/00

CPC classification number: A63B37/0043 ,  A63B37/0045 ,  A63B37/0062 ,  A63B37/0076

Abstract: Disclosed is a golf ball including a center portion, at least two intermediate tiers sequentially surrounding the center portion, and an outer tier surrounding the intermediate tiers, which comprises: said outer tier having a thickness in a range of 0.8˜1.4 mm, and an a hardness (Shore D) in a range of 40˜50; among the intermediate tiers, said first intermediate tier formed just below the outer tier, having a thickness in a range of 1.0˜2.0 mm and a hardness (Shore D) in a range of 50˜65; each intermediate tier formed just below the first intermediate tier having a thickness in a range of 1.3˜1.5 mm, and a hardness (Shore D) in range of 30˜70; the radius of the center portion is in a range of 5˜18 mm, and a hardness (Shore D) in a range of 30˜70; and a moment of inertia value of the golf ball is less than 83 g·cm2. According to the golf ball of the present invention, an iron spin force is excellent as compared to a conventional golf ball for a match, and the flying distance is almost same.

Abstract translation: 公开了一种高尔夫球，其包括中心部分，顺序围绕中心部分的至少两个中间层和围绕中间层的外层，其包括：所述外层的厚度在0.8〜1.4mm的范围内， 硬度（肖氏D）在40〜50的范围内; 在中间层之间，形成在外层正下方的第一中间层，其厚度在1.0〜2.0mm的范围内，硬度（肖氏D）在50〜65的范围内; 每个中间层形成在第一中间层的正下方，其厚度在1.3〜1.5mm的范围内，硬度（Shore D）在30〜70的范围内; 中心部分的半径在5〜18mm的范围内，硬度（肖氏D）在30〜70的范围内; 高尔夫球的惯性矩小于83g·cm 2。 根据本发明的高尔夫球，与用于比赛的传统高尔夫球相比，铁旋转力是优异的，并且飞行距离几乎相同。

公开(公告)号：USD952779S1

公开(公告)日：2022-05-24

申请号：US29740959

申请日：2020-07-08

Applicant: VOLVIK INC.

Designer： Jeong Mook Kim

公开(公告)号：US20220062713A1

公开(公告)日：2022-03-03

申请号：US17370193

申请日：2021-07-08

Applicant: VOLVIK INC.

Inventor： Chul Ho SONG ,  Seung Geun PARK ,  Geon SIM ,  Kyung Ahn MOON

IPC: A63B37/00 ,  C08L75/06 ,  C08L75/08 ,  C08F136/06 ,  C08L23/08 ,  C08G18/10 ,  C08G18/48 ,  C08G18/42 ,  C08G18/32 ,  C08G18/75 ,  C08G18/73 ,  C08G18/76 ,  C08K5/00 ,  C08K5/29

Abstract: A golf ball according to an embodiment of the present disclosure is covered with an injection-molded crosslinked polyurethane. The golf ball may have excellent scuff resistance and light resistance of a cover as well as excellent driving distance and spin by using a cover composition containing crosslinked polyurethane obtained by adding a crosslinking agent to thermoplastic polyurethane (TPU). A polyurethane cover composition according to an embodiment can make it possible to prepare a crosslinked polyurethane cover by injection molding without the burden of facility investment cost.

公开(公告)号：US11058920B2

公开(公告)日：2021-07-13

申请号：US16103517

申请日：2018-08-14

Applicant: VOLVIK INC.

Inventor： In Hong Hwang ,  Kyung Ahn Moon

IPC: A63B37/12 ,  A63B37/14 ,  A63B37/00 ,  A63B45/00

Abstract: A surface of a sphere is divided by using not only great circles but also small circles, forming a spherical polyhedron. The spherical polyhedron includes two spherical regular pentagons, each having a center at the pole, ten spherical isosceles triangles near the pole, ten spherical pentagons near the equator, and ten other spherical isosceles triangles near the equator. Compared to a related art, dimples are accurately arranged in spherical polygons. Thus, a dimple area ratio is improved and the number of dimples is appropriately maintained.

公开(公告)号：US11045691B2

公开(公告)日：2021-06-29

申请号：US13949610

申请日：2013-07-24

Applicant: VOLVIK INC.

Inventor： In Hong Hwang ,  Kyung Ahn Moon

IPC: A63B37/12 ,  A63B37/14 ,  A63B37/00

Abstract: Provided is a spherical polyhedron division structure of a golf ball where dimples are arranged to have a well-defined symmetry and a dimple pattern. In the spherical polyhedron division structure, wherein an arbitrary point on a surface of a spherical body constituting a golf ball is defined as a pole, a great circle dividing the spherical body into a northern hemisphere and a southern hemisphere with respect to the pole as a reference point is defined as an equator, the surface of the spherical body is divided into six areas formed by segments connecting the pole and points obtained by dividing the equator in units of 60°, each area is divided into spherical polygons formed by four spherical rectangles and two spherical triangles having sides with different lengths, and the spherical polygons arranged in different adjacent areas are symmetric with each other.

公开(公告)号：USD858665S1

公开(公告)日：2019-09-03

申请号：US29587968

申请日：2016-12-16

Applicant: VOLVIK INC.

Designer： Sang-Woork Park ,  Kyung-Ahn Moon

公开(公告)号：US10058739B2

公开(公告)日：2018-08-28

申请号：US15077079

申请日：2016-03-22

Applicant: VOLVIK INC.

Inventor： In Hong Hwang ,  Kyung Ahn Moon

IPC: A63B37/12 ,  A63B37/14 ,  A63B37/00

CPC classification number: A63B37/0006 ,  A63B37/0004 ,  A63B37/0009 ,  A63B37/002 ,  A63B37/0021

Abstract: Provided is a golf ball having a surface divided by small circles. A surface of a sphere is divided by small circles to generate spherical polyhedrons in order to arrange dimples in the spherical polygons, instead of arranging dimples in spherical polyhedrons that are generated by dividing the surface of the sphere by great circles. According to one or more exemplary embodiments, a land surface of the golf ball, which is generated by arranging the dimples in the spherical polyhedrons, has a dimple area ratio higher than that of a spherical truncated icosahedron of which a surface is divided by great circles on which dimples are arranged. Therefore, a flight distance of the golf ball increases.

公开(公告)号：US09873019B2

公开(公告)日：2018-01-23

申请号：US15139125

申请日：2016-04-26

Applicant: VOLVIK INC.

Inventor： In Hong Hwang ,  Kyung Ahn Moon

IPC: A63B37/06 ,  A63B37/00

CPC classification number: A63B37/0006 ,  A63B37/0004 ,  A63B37/0009

Abstract: In a golf ball having a surface divided by triangular concave sectors, an area of a surface of a sphere is divided into a plurality of areas forming spherical polyhedron and a plurality of dimples are formed for each of the plurality of areas. A triangular concave sector is formed by continuously forming a plurality of triangular concave on each arc along great circles dividing the surface of the sphere into the plurality of areas. A planar shape of each of the plurality of triangular concave is a triangle and the bases of the triangular concaves are arranged on the arc along the great circles. Peaks of adjacent triangular concaves are located at opposite sides with respect to the arc along the great circles.