Mizuno Corporation

Xiamen Pheasant Hi-tech Aluminum Co., Ltd.

Other

Renqin Zhang

Chi-Hung Lee

Thu Van Nguyen

Yohei Yamashita

David Gregory Llewellyn

Kohei Kikuchi

Katsuhisa Hirano

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.

Bat system with performance limiting structure and methods of making same

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.

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 multiple rods disposed longitudinally within the hollow barrel. The internal assembly can include a deformable ring having a substantially circular outer wall having a diameter less than an inner diameter of the hollow barrel and multiple holes, with each hole configured to at least partially receive a rod of the multiple rods. The bat can have an end cap including end cap holes extending partially through the end cap, with each end cap hole configured to at least partially receive a rod.

A multi-component baseball or softball bat has a vibration absorber affixed to an end of the handle. The vibration absorber has a first section disposed within an end of the barrel of the bat and a second section disposed outside of the barrel. An outer locking sleeve has a first portion disposed over an end of the barrel and a second portion disposed over the second section of the vibration absorber. A vibration sleeve may be disposed between the outer surface of the barrel and an inner surface of the first portion of the outer locking sleeve.

Baseball/softball bat with outer locking system having shock dissipation characteristics

Baseball or softball bat handle smart knob having sensors for analyzing swing characteristics

A barrel of a baseball or softball bat is coupled to an end of a handle of the bat by means of a vibration absorber affixed to the end of the handle. Projections of a first locking section of the vibration absorber engage with depressions formed on an inner surface of the barrel. Adhesive disposed within gaps and channels of the vibration absorber adhere the vibration absorber to the barrel. A second locking section of the vibration absorber is attachable to a sleeve disposed over the handle. The sleeve may be of a material having shock absorbing or dissipating characteristics.

Baseball/softball bat with shock dissipation characteristics and method of manufacturing same

A multi-section ball bat includes a barrel, a handle and an end cap. The handle has a first end defining a grip portion and a generally opposite second end attached to the barrel. The end cap has a first end attached to an opposite end of the barrel. At least a portion of the handle may have a multi-wall configuration defined by a gap. Similarly, at least a portion of the end cap may have a multi-wall configuration defined by a gap. The gap in a wall of the handle or the end cap may be formed between layers of a multi-layer composite material forming the handle or end cap. The presence of the gap in the handle or end cap extends the sweet spot of the bat from the barrel into the handle and/or the end cap.

Growing community of inventors

Fujian, China

Renqin Zhang