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1. 发明授权

US11878222B2 Bat 有权
公开(公告)号：US11878222B2
公开(公告)日：2024-01-23
申请号：US17585944
申请日：2022-01-27
申请人： MIZUNO CORPORATION
发明人： Yohei Yamashita , Katsuhisa Hirano
IPC分类号： A63B60/54 , A63B59/50 , A63B102/18
CPC分类号： A63B60/54 , A63B59/50 , A63B2102/18 , A63B2102/182 , A63B2209/00
摘要： A bat includes a handle having a proximate end and a distal end, a barrel having a hollow portion that accommodates the distal end, and a first damping section at least partially sandwiched between the handle and the barrel in the interior of the hollow portion. The material of the first damping section has a D hardness of 60 or more, a loss coefficient tan δ of 0.11 or more as determined under conditions of a temperature of 20° C., a frequency of 150 Hz, and the amount of strain 3000 μST, and a loss coefficient tan δ of 0.09 or more as determined under conditions of a temperature of 20° C., a frequency of 500 Hz, and the amount of strain 3000 μST.

2. 发明公开

US20230233913A1 Bat 审中-公开
公开(公告)号：US20230233913A1
公开(公告)日：2023-07-27
申请号：US17585949
申请日：2022-01-27
申请人： MIZUNO CORPORATION
发明人： Yohei Yamashita , Katsuhisa Hirano , Thu Van Nguyen , Chi-Hung Lee , Renqin Zhang
IPC分类号： A63B59/50 , A63B60/54
CPC分类号： A63B59/50 , A63B60/54 , A63B2102/18
摘要： A bat includes a handle having a proximate end and a distal end, a barrel having a hollow portion that accommodates the distal end, and a first damping section at least partially sandwiched between the handle and the barrel in the interior of the hollow portion. The first damping section includes a first portion in contact with each of the handle and the barrel in the interior of the hollow portion, and a second portion disposed closer to the proximate end than the first portion, the second portion being in contact with an inner peripheral surface of the barrel and not being in contact with an outer peripheral surface of the handle. In a cross section along a center axis of the barrel, the barrel has a depression depressed relative to the inner peripheral surface in the cross section, the second portion has a protrusion fitted in the depression.

3. 发明申请

US20180093148A1 BASEBALL OR SOFTBALL BAT WITH MODIFIED RESTITUTION CHARACTERISTICS 审中-公开
公开(公告)号：US20180093148A1
公开(公告)日：2018-04-05
申请号：US15821339
申请日：2017-11-22
申请人： MIZUNO CORPORATION
发明人： Michiharu Tsukamoto , Yohei Yamashita , Toshiaki Kida , Kazuhiko Shindome , Kohei Kikuchi
IPC分类号： A63B59/50 , A63B59/51 , A63B59/54 , A63B60/00
CPC分类号： A63B59/50 , A63B59/51 , A63B59/54 , A63B59/56 , A63B60/00 , A63B2102/18 , A63B2102/182 , A63B2208/12 , A63B2209/00 , A63B2209/02 , A63B2209/10 , B29C45/14491 , B29C65/48 , B29C65/483 , B29C65/5057 , B29C65/565 , B29C65/66 , B29C66/5344 , B29C66/71 , B29K2075/00 , B29K2705/02 , B29L2031/52 , B29L2031/5227
摘要： A softball or baseball bat with modified restitution characteristic is provided. The bat can comprise a substantially rigid core coupled with a single or multi-piece sleeve. The core can comprise a tip end, a barrel portion, a handle taper, and a handle. A sleeve assembly can be disposed over the barrel portion, and the sleeve assembly can comprise one or more materials capable of impact absorption. The sleeve assembly can include a ring portion positioned about a circumference of the barrel portion, an outer sleeve, and an inner sleeve disposed between the outer sleeve and the barrel portion.

4. 发明授权

US09440112B2 Bat selection device and bat selection method 有权
标题翻译：蝙蝠选择装置和蝙蝠选择方法
公开(公告)号：US09440112B2
公开(公告)日：2016-09-13
申请号：US14188026
申请日：2014-02-24
申请人： Mizuno Corporation
发明人： Yuki Yamada , Yasuyuki Ohta , Yohei Yamashita
IPC分类号： A63B71/06 , A63B24/00 , A63B69/00
CPC分类号： A63B24/0003 , A63B69/0075 , A63B2069/0008 , A63B2220/13 , A63B2220/34 , A63B2220/805
摘要： A bat selection device includes: a parameter input unit which receives an input of a swing parameter value relevant to swing of a batter, for each of at least two or more bats having moments of inertia different from one another swung by the batter at an object, of a plurality of bats; an estimation unit which estimates the swing parameter value corresponding to each of the plurality of bats based on each received swing parameter value; and a selection unit which calculates an index parameter value indicative of an index for selecting a bat suitable for the batter from the plurality of bats, for each of the plurality of bats, based on the estimated swing parameter value corresponding to the bat, and selects the bat suitable for the batter based on the index parameter values.
摘要翻译：蝙蝠选择装置包括：参数输入单元，其接收与面糊的摆动相关的挥杆参数值的输入，对于至少两个或更多个蝙蝠中的每一个，所述蝙蝠具有彼此不同的惯性力矩，，多个蝙蝠; 估计单元，其基于每个接收到的摆动参数值来估计与所述多个蝙蝠中的每一个相对应的所述摆动参数值; 以及选择单元，基于与蝙蝠相对应的估计的摆动参数值，计算指示用于从多个蝙蝠中选择适合于多个蝙蝠的蝙蝠的指标的指标参数值，并且选择基于指标参数值，蝙蝠适合面糊。

5. 发明申请

US20210170246A1 Bat 有权
公开(公告)号：US20210170246A1
公开(公告)日：2021-06-10
申请号：US16707938
申请日：2019-12-09
申请人： Mizuno Corporation
发明人： Yohei Yamashita , Katsuhisa Hirano
IPC分类号： A63B59/50 , B32B5/02 , B32B5/26 , B32B27/12
摘要： A bat includes a ball hitting portion. The ball hitting portion includes a plurality of fiber-reinforced resin layers stacked in a radial direction relative to a center axis of the ball hitting portion. The plurality of fiber-reinforced resin layers include a first fiber-reinforced resin layer disposed at an outermost circumference in the radial direction among the plurality of fiber-reinforced resin layers. The first fiber-reinforced resin layer has a plurality of first fiber bundles and a plurality of second fiber bundles. The plurality of first fiber bundles are disposed side by side in a short side direction of each of the plurality of first fiber bundles. The plurality of second fiber bundles are disposed side by side in a short side direction of each of the plurality of second fiber bundles. The plurality of first fiber bundles and the plurality of second fiber bundles are woven across one another.

6. 发明授权

US10561914B2 Baseball or softball bat with modified restitution characteristics 有权
公开(公告)号：US10561914B2
公开(公告)日：2020-02-18
申请号：US15821339
申请日：2017-11-22
申请人： MIZUNO CORPORATION
发明人： Michiharu Tsukamoto , Yohei Yamashita , Toshiaki Kida , Kazuhiko Shindome , Kohei Kikuchi
IPC分类号： A63B59/54 , A63B59/50 , A63B60/00 , A63B59/51 , A63B102/18
摘要： A softball or baseball bat with modified restitution characteristic is provided. The bat can comprise a substantially rigid core coupled with a single or multi-piece sleeve. The core can comprise a tip end, a barrel portion, a handle taper, and a handle. A sleeve assembly can be disposed over the barrel portion, and the sleeve assembly can comprise one or more materials capable of impact absorption. The sleeve assembly can include a ring portion positioned about a circumference of the barrel portion, an outer sleeve, and an inner sleeve disposed between the outer sleeve and the barrel portion.

7. 发明授权

US10245488B1 Vibration damping bat and methods of making the same 有权
公开(公告)号：US10245488B1
公开(公告)日：2019-04-02
申请号：US15798857
申请日：2017-10-31
申请人： MIZUNO CORPORATION
发明人： Brendan Kays , Yohei Yamashita , David Llewellyn
IPC分类号： A63B59/00 , A63B60/54 , A63B59/50 , A63B59/51 , A63B102/18
摘要： A softball or baseball bat is provided. The bat can comprise a handle that has a proximate end and a distal end and a barrel that has a hollow portion. The bat can comprise first damping section that comprises a first material, and the first damping section can be at least partially interposed between a portion of the handle and a portion of an inner wall of the barrel. The bat can comprise a second damping section that can comprise a second material, and the second damping section can be at least partially interposed between a portion of the handle and a portion of the inner wall of the barrel. At least a portion of the first damping section or the second damping section can prevent the handle from directly contacting the barrel when the bat is at rest.

8. 发明公开

US20230233915A1 Bat 审中-公开
公开(公告)号：US20230233915A1
公开(公告)日：2023-07-27
申请号：US17585944
申请日：2022-01-27
申请人： MIZUNO CORPORATION
发明人： Yohei Yamashita , Katsuhisa Hirano
IPC分类号： A63B60/54 , A63B59/50
CPC分类号： A63B60/54 , A63B59/50 , A63B2209/00 , A63B2102/18
摘要： A bat includes a handle having a proximate end and a distal end, a barrel having a hollow portion that accommodates the distal end, and a first damping section at least partially sandwiched between the handle and the barrel in the interior of the hollow portion. The material of the first damping section has a D hardness of 60 or more, a loss coefficient tan δ of 0.11 or more as determined under conditions of a temperature of 20° C., a frequency of 150 Hz, and the amount of strain 3000 μST, and a loss coefficient tan δ of 0.09 or more as determined under conditions of a temperature of 20° C., a frequency of 500 Hz, and the amount of strain 3000 μST.

9. 发明申请

US20230113166A1 BAT SYSTEM WITH PERFORMANCE LIMITING STRUCTURE AND METHODS OF MAKING SAME 有权
公开(公告)号：US20230113166A1
公开(公告)日：2023-04-13
申请号：US18079319
申请日：2022-12-12
申请人： Mizuno Corporation
发明人： Kohei Kikuchi , Yohei Yamashita , David Llewellyn , Thu Van Nguyen , Chi-Hung Lee , Renqin Zhang , Katsuhisa Hirano
IPC分类号： A63B59/50
摘要： A bat, which has a hollow barrel and an internal assembly configured to resist deformation of the hollow barrel, is disclosed. The internal assembly includes a rod disposed longitudinally in the hollow barrel, a ring attached to the rod, a deformable sleeve disposed around the ring and extending longitudinally in the hollow barrel. The sleeve can include an outer diameter smaller than an inner diameter of the hollow barrel. The bat can include an end cap attached to an end of the hollow barrel and having a recess configured to receive an end of the rod. The rod can be configured to maintain the deformable sleeve in a predetermined suspended position within the hollow barrel such that, when the bat is at rest, the sleeve is disposed a predetermined gap distance from an inner surface of the hollow barrel.

10. 发明申请

US20180345102A1 BASEBALL OR SOFTBALL BAT 审中-公开
公开(公告)号：US20180345102A1
公开(公告)日：2018-12-06
申请号：US15611172
申请日：2017-06-01
申请人： MIZUNO CORPORATION
发明人： Kohei Kikuchi , Yohei Yamashita , Brendan Troy Kays
IPC分类号： A63B59/51 , A63B59/58
CPC分类号： A63B59/51 , A63B59/58 , A63B60/08 , A63B2102/18 , A63B2209/02
摘要： A bat according to the present disclosure includes a ball hitting portion, a grip portion, a tapered portion that connects the ball hitting portion and the grip portion together, and a restriction member. The ball hitting portion is internally hollowed. The restriction member is disposed inside the ball hitting portion. The restriction member is in the form of a ring. The restriction member is disposed such that a radial direction thereof is transverse to a longitudinal direction of the ball hitting portion.

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