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公开(公告)号：US10010761B2
公开(公告)日：2018-07-03
申请号：US15178179
申请日：2016-06-09
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Hyoungchol Kim , Masahide Onuki , Takahiro Sajima , Kohei Mimura
CPC classification number: A63B37/002 , A63B37/0006 , A63B37/0007 , A63B37/0018 , A63B37/0021 , G06T17/20
Abstract: A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of: (1) assuming a large number of circles on a surface of a phantom sphere; (2) assuming a large number of generating points 16 based on positions of the large number of circles; (3) assuming a large number of Voronoi regions 18 on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points 16; and (4) assigning a dimple and a land to the surface of the phantom sphere based on contours of the large number of Voronoi regions 18.
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公开(公告)号：US09352196B2
公开(公告)日：2016-05-31
申请号：US13870048
申请日：2013-04-25
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Masahide Onuki , Masaru Kono , Tomio Kumamoto
CPC classification number: A63B60/00 , A63B53/04 , A63B53/0466 , A63B53/047 , A63B53/0487 , A63B2053/0437 , A63B2071/0694 , A63B2209/00 , B41M5/262 , B41M5/267 , B41M5/283 , B41M5/30 , B41M5/327 , B41M5/3275 , B41M5/3335 , B41M5/3336 , B41M5/3338
Abstract: A golf club c1 has a base part 2, a laser discoloration layer 6, and a protection layer 8. The laser discoloration layer 6 is provided on the outer side of the base part 2. The protection layer 8 is provided on the outer side of the laser discoloration layer 6. The protection layer 8 has laser beam transparency. The laser discoloration layer 6 can be discolored by irradiation of a laser beam. Preferably, an undercoat layer 4 is further provided between the base part 2 and the laser discoloration layer 6. Preferably, the undercoat layer 4 is not discolored by the laser beam. Preferably, the laser discoloration layer 6 includes abase material resin and a laser discoloration material.
Abstract translation: 高尔夫球杆c1具有基部2，激光变色层6和保护层8.激光变色层6设置在基部2的外侧。保护层8设置在基部2的外侧 激光变色层6.保护层8具有激光束透明度。 激光变色层6可以通过照射激光而变色。 优选地，在基部2和激光变色层6之间还设置底涂层4.优选地，底涂层4不会被激光束变色。 优选地，激光变色层6包括基材树脂和激光变色材料。
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公开(公告)号：US10456621B2
公开(公告)日：2019-10-29
申请号：US15284744
申请日：2016-10-04
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Masahide Onuki
Abstract: Provided is an impact point estimation apparatus for estimating an impact point on a face surface of a head when a golf club having a grip, a shaft and the head is swung and hits a golf ball. The apparatus has an acquisition unit, a calculation unit, and an estimation unit. The acquisition unit is configured to acquire time series sensor data that is output from at least one of an angular velocity sensor and an acceleration sensor that is attached to at least one of the grip and the shaft. The calculation unit is configured to calculate a characteristic value of an initial stress wave that occurs due to impact from the sensor data acquired in an analysis period including an initial period after impact. The estimation unit is configured to estimate the impact point on the face surface, according to the characteristic value. The analysis period is before a predetermined short time period has elapsed from impact.
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公开(公告)号：US09895581B2
公开(公告)日：2018-02-20
申请号：US14638657
申请日：2015-03-04
Applicant: DUNLOP SPORTS CO., LTD.
Inventor： Masahide Onuki
CPC classification number: A63B53/04 , A63B53/0466 , A63B53/047 , A63B60/52 , A63B2053/0412 , A63B2053/042 , A63B2053/0458
Abstract: A head 2 includes a head body h1, a face part Fp1, and a connecting part Cn1. The face part Fp1 includes a face surface f1 and a face back surface f2. The connecting part Cn1 connects the face back surface f2 of the face part Fp1 and the head body h1 to each other. The connecting part Cn1 may be provided at a position separated from a peripheral edge of the face back surface f2. The peripheral edge of the face back surface f2 may be separated from the head body h1. The face part Fp1 may include a face middle region R1 and a face peripheral region R2. The connecting part Cn1 may be provided only in the face middle region R1.
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公开(公告)号：US08758151B2
公开(公告)日：2014-06-24
申请号：US13730156
申请日：2012-12-28
Applicant: Dunlop Sports Co. Ltd.
Inventor： Wataru Kimizuka , Masahide Onuki
CPC classification number: A63B69/3658 , G06T7/20 , G06T7/73 , G06T2207/10004 , G06T2207/30204 , G06T2207/30224
Abstract: A head measuring method of the present invention includes: (a) preparing a golf club having a head having a plurality of markers provided thereon; (b) photographing the head by a camera disposed at a position, wherein a backward distance between the position and a center point of a ball is equal to or greater than 0, to obtain a head image near an impact; and (c) analyzing the head image to calculate a position and attitude of the head near the impact. Preferably, three or more combinations of the markers set such that the marker interval is equal to or greater than a head vertical width exist.
Abstract translation: 本发明的头部测量方法包括：（a）制备具有设置在其上的多个标记的头部的高尔夫球杆; （b）通过设置在位置处的摄像机拍摄头部，其中位置和球的中心点之间的后方距离等于或大于0，以获得靠近撞击的头部图像; 和（c）分析头部图像以计算头部靠近撞击的位置和姿态。 优选地，标记的三个或更多个组合被设置为使得标记间隔等于或大于头垂直宽度。
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Patent Agency Ranking
公开(公告)号：US10201740B2
公开(公告)日：2019-02-12
申请号：US15483373
申请日：2017-04-10
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Masahide Onuki , Masaru Kono
IPC: A63F9/24 , A63F13/00 , G06F17/00 , G06F19/00 , A63B69/36 , A63B60/02 , A63B60/46 , A63B60/42 , A63B71/06 , G01B5/00 , A63B53/04 , A63B60/52
Abstract: Provided is a weight pattern determination apparatus for determining, in a golf club having a head capable of mounting one or more weights in a plurality of mounting patterns, the mounting pattern suited to a golfer. The apparatus has an impact point specification unit and a pattern determination unit. The impact point specification unit specifies an impact point distribution of the golfer. The pattern determination unit determines a recommended pattern which is the mounting pattern that approximates a sweet area of the golf club to the impact point distribution. According to the first aspect of the present invention, the impact point distribution of the golfer is specified, and a mounting pattern is determined based on this impact point distribution.
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公开(公告)号：US09814943B2
公开(公告)日：2017-11-14
申请号：US15359268
申请日：2016-11-22
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Masahide Onuki , Yuki Motokawa , Naruhiro Mizutani
CPC classification number: A63B53/02 , A63B53/0466
Abstract: A golf club 100 includes a head 200 having a hosel part 202, a shaft 300, and an engaging part 600 disposed at a tip part of the shaft 300. The engaging part 600 includes a sleeve 400 which has an oppositely tapered shape and is fixed to the tip part of the shaft 300. The hosel part 202 includes a hosel hole 204, and a hosel slit 206 which is provided on a side of the hosel hole 204 and enables the shaft 300 to pass through the hosel slit 206. The hosel hole 204 has an oppositely tapered hole having a shape corresponding to a shape of an outer surface of the engaging part 600. The engaging part 600 is fitted into the oppositely tapered hole.
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公开(公告)号：US09555289B2
公开(公告)日：2017-01-31
申请号：US14749200
申请日：2015-06-24
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Kohei Mimura , Takahiro Sajima , Hyoungchol Kim , Masahide Onuki
CPC classification number: A63B37/0018 , A63B37/0017 , A63B37/0019 , A63B37/002 , A63B37/0021 , A63B37/009 , A63B37/0096
Abstract: A golf ball has a large number of dimples on a surface thereof. The golf ball meets the following mathematical formula (I): 1.320≦L1≦1.420 (I), where L1 represents a ratio of a lift coefficient CL1 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 2820 rpm, relative to a lift coefficient CL2 which is measured under conditions of a Reynolds number of 1.290×105 and a spin rate of 1740 rpm.
Abstract translation: 高尔夫球在其表面上具有大量凹坑。 高尔夫球符合以下数学公式（I）：1.320≤L1≤1.420（I），其中L1表示在雷诺数为1.290×105的条件下测得的升力系数CL1与旋转速率为2820的比例 rpm，相对于在雷诺数为1.290×105和旋转速率为1740rpm的条件下测量的升力系数CL2。
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公开(公告)号：US09452321B2
公开(公告)日：2016-09-27
申请号：US14226923
申请日：2014-03-27
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Hyoungchol Kim , Masahide Onuki
CPC classification number: A63B37/0006 , A63B37/0007 , A63B37/0018 , A63B37/002 , A63B37/0021 , A63B37/0033 , A63B37/0064 , A63B37/0074 , A63B37/0075 , A63B37/0097 , A63B45/00 , G06F17/50
Abstract: A golf ball 2 has, on a surface thereof, a rugged pattern composed of a land 10 and a large number of dimples 8. A process for designing the rugged pattern includes the steps of: (1) arranging a large number of generating points on a surface of a phantom sphere; (2) assuming a large number of Voronoi regions on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points; (3) calculating centers of gravity of the Voronoi regions and setting the centers of gravity as new generating points; (4) assuming a large number of new Voronoi regions on the surface of the phantom sphere by a Voronoi tessellation based on a large number of the new generating points; and (5) assigning dimples and a land to the surface of the phantom sphere based on contours of the new Voronoi regions.
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公开(公告)号：US09403062B2
公开(公告)日：2016-08-02
申请号：US14072902
申请日：2013-11-06
Applicant: DUNLOP SPORTS CO. LTD.
Inventor： Hyoungchol Kim , Masahide Onuki , Takahiro Sajima , Kohei Mimura
CPC classification number: A63B37/002 , A63B37/0006 , A63B37/0007 , A63B37/0018 , A63B37/0021 , G06T17/20
Abstract: A golf ball has, on a surface thereof, a rugged pattern composed of a land and a large number of dimples. A method for designing the rugged pattern includes the steps of: (1) assuming a large number of circles on a surface of a phantom sphere; (2) assuming a large number of generating points 16 based on positions of the large number of circles; (3) assuming a large number of Voronoi regions 18 on the surface of the phantom sphere by a Voronoi tessellation based on the large number of generating points 16; and (4) assigning a dimple and a land to the surface of the phantom sphere based on contours of the large number of Voronoi regions 18.
Abstract translation: 高尔夫球的表面具有由陆地和大量凹坑构成的凹凸图案。 用于设计凹凸图案的方法包括以下步骤：（1）在幻影球的表面上假设大量的圆; （2）基于大量圆的位置假设大量的生成点16; （3）基于大量的生成点16，通过Voronoi镶嵌假设在幻影球的表面上存在大量的Voronoi区域18; 和（4）基于大量Voronoi区域18的轮廓，将一个凹坑和一个土地分配给幻影球体的表面。
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