Mizuno Corporation

Yohei Yoshida

Kouji Ito

Yo Kajiwara

Naoki Yoshikawa

Takashi Nakamura

Yasuyuki Ohta

Daisuke Kogawa

Yoshinobu Watanabe

Shingo Sudo

A sole for a shoe includes a sole body extending longitudinally from a heel portion to a toe portion and a curved plate provided at the sole body and extending longitudinally along the sole body. A compressive rigidity of the sole body is lowest at a metatarsophalangeal joint position. The sole body includes a sole forefoot top part disposed above the curved plate at the forefoot portion and a sole forefoot bottom part disposed below the curved plate at the forefoot portion. The compressive rigidity of the sole body is relatively low at the sole forefoot bottom part.

Sole for a shoe

A stud for an outsole includes: an outer tubular portion located on an outsole body and having a tubular shape; and a core portion located inside the outer tubular portion. The outer tubular portion is integral with the outsole body with no seam between the outer tubular portion and the outsole body. An inner wall surface of the outer tubular portion surrounds, and is in contact with, a side surface of the core portion. This configuration reduces separation of the stud from the outsole and firmly holds the stud on the outsole.

Stud for outsole, outsole for cleated shoe, method for producing outsole, and cleated shoe

A sole reference posture is determined such that a straight reference line connects a toe-tip position and a rearmost end position of a sole top surface, a path length measured along the sole top surface from the origin of the rearmost end position to the toe-tip position is L, an intersection point of a sole bottom surface and a line crossing a position of 0.45×L and orthogonal to the reference line is position C, and the sole is in contact with the ground at position C. In the reference posture, the sole bottom surface is separated from the ground at a heel portion and a toe portion, and an inequality θ≥5 is satisfied, wherein θ is an angle between a straight line connecting a heel central position of 0.15×L with a metatarsophalangeal joints position of 0.68×L and the ground.

To achieve a favorable feeling particularly during running. A midsole includes: a first midsole portion; and a second midsole portion stacked on the first midsole portion in a thickness direction of the midsole and made of a material having a lower hardness than a material forming the first midsole portion. In a cutting plane when the midsole is cut along a foot width direction at a location corresponding to the sustentaculum tali of a foot of a wearer, the first midsole portion and the second midsole portion have a relatively-low hardness at a location corresponding to the calcaneus of the wearer, and a relatively-high hardness in an area ranging from a location corresponding to the sustentaculum tali to a medial instep side.

Sole structure and shoes having the same

A sole structure includes a first midsole portion, a second midsole portion disposed below the first midsole part, and a support plate stacked between the first midsole portion and the second midsole portion, disposed at a location corresponding at least to a hindfoot portion, and having a higher rigidity than the first midsole portion and the second midsole portion. The support plate includes: a base portion having a corrugated shape with at least one peak and at least one valley; and first and second support portions having a corrugated shape and branched apart from each other from a peripheral edge portion located on an inner side of the base portion toward the first midsole portion and the second midsole portion, respectively. The valley of the second support portion is disposed at a location corresponding to a sustentaculum tali.

A shock absorbing member includes: support members spaced apart from each other; and a connection member laid across, and connecting together, the support members. Each of the support members includes: an inner wall capable of elastically deforming by external force in a vertical direction; and a first tube and a second tube each provided to one of an outer wall and the inner wall. While inserted through the first and second tubes of the support members, the connection member is integrally formed in a closed shape with ends of the connection member having no seams.

Shock absorbing member for sole of shoe and shoe including shock absorbing member

A method for producing the shock absorbing member includes: inserting in which each of tubes is housed in a corresponding one of first housings such that molding spaces and the tubes communicate with one another; and molding in which a thermoplastic resin material to form a connection member is heated to melt and injected from a gate toward the molding spaces and the tubes so that the tubes and the connection member are integrally formed.

Method for producing shock absorbing member

A shoe outsole structure includes: a first outsole component made of a deformable soft resin material and configured to entirely support a plantar surface spreading from a forefoot to a hindfoot; and a second outsole component integrally formed on top of the first outsole component, made of a hard resin material which has a higher rigidity than the first outsole component, and configured to support a region, of the plantar surface, which is continuous from a rear portion, of the forefoot, located rearward of metatarsophalangeal joints to the hindfoot.

Outsole structure for shoes and cleated shoe using same

An upper structure for a shoe improves foot fit and hold of an upper at the time of turn motion. In an upperthat covers a foot of a shoe wearer, an expandable partis provided at a midfoot region M that corresponds to a midfoot portion of the foot, and a non-expandable partis provided at a lateral side region and a medial side region except for the midfoot region M. A boundary portionbetween the expandable partand the non-expandable parthas a substantially flat or flush surface. At the boundary portion, respective end portionsE,E of the expandable partand the non-expandable partare sewn together such that a seam does not appear on the boundary surface. The shoe may further include an outsole having at least one groove in a particular triangular region on a bottom surface of the outsole.

Shoe upper structure and shoe

A running form diagnosis system capable of automatically scoring a running form of a runner is provided. The running form diagnosis system obtains body motion information as to a test subject running on a treadmill, and calculate a running form score of the test subject by applying obtained characteristics to a given operation expression. The operation expression is generated based on correlation between characteristics of a plurality of test runners and comprehensive evaluation given by an expert with respect to the plurality of test runners.

Growing community of inventors

Osaka, Japan

Yohei Yoshida