Patents by Inventor Yo Kajiwara
Yo Kajiwara has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11963576Abstract: A sole structure for a shoe includes an upper wall portion disposed on the upper side, a lower wall portion disposed below and away from the upper wall portion, and a sidewall portion that is disposed between the upper wall portion and the lower wall portion and that is elastically deformable in the vertical direction. The upper and lower wall portions and the sidewall portion are formed of resin-made wall-shaped members. A three-dimensional elastic fiber structure formed of resin fibers is provided in the interior region between the upper wall portion and the lower wall portion. The interior region includes a hollow portion that is in contact with the three-dimensional elastic fiber structure via a partition wall formed of a resin-made wall-shaped member.Type: GrantFiled: March 23, 2021Date of Patent: April 23, 2024Assignee: MIZUNO CORPORATIONInventors: Kenjiro Kita, Takao Oda, Natsuki Sato, Yo Kajiwara, Shingo Sudo
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Patent number: 11744323Abstract: A sole of a sole structure includes an upper wall portion disposed on an upper side, a lower wall portion disposed on a lower side and spaced away from the upper wall portion, and a pair of sidewall portions that extend substantially in a vertical direction between the upper wall portion and the lower wall portion, that have a vertical zigzag shape, that are coupled to the upper wall portion and the lower wall portion, and that extend in a longitudinal direction along the outer peripheries of the upper wall portion and the lower wall portion. The upper wall portion and the lower wall portion and a pair of sidewall portions are resin-made wall members with a predetermined thickness and form an interior space. Each of the sidewall portions has concave parts recessed inwardly and convex parts protruding outwardly and it is compressible in the vertical direction.Type: GrantFiled: November 7, 2019Date of Patent: September 5, 2023Assignee: MIZUNO CORPORATIONInventors: Kenjiro Kita, Takao Oda, Yo Kajiwara
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Publication number: 20230200485Abstract: 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.Type: ApplicationFiled: December 21, 2022Publication date: June 29, 2023Inventors: Yo KAJIWARA, Yohei YOSHIDA
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Publication number: 20230200486Abstract: 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 ??5 is satisfied, wherein ? 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.Type: ApplicationFiled: December 19, 2022Publication date: June 29, 2023Inventors: Yo KAJIWARA, Yohei YOSHIDA
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Patent number: 11653717Abstract: The present invention relates to a shoe including an upper, the upper including an instep cover that covers the instep of a foot. The instep cover includes an instep cover body and a tongue. Two or more protrusions that are configured to extend in use from the instep cover body toward the foot are located at least in a region between the MP joint and the talus in a side portion of the instep cover body. The protrusions are made of embroidery. The protrusions have a height of 0.5 mm or more, a width of 2 mm or more, and a length of 2 mm or more. A distance between each pair of the adjacent protrusions is 2 mm or more in part of the region. The shoe of the present invention includes the upper that improves the heat dissipation properties without impairing the contact between the foot and the shoe.Type: GrantFiled: March 5, 2021Date of Patent: May 23, 2023Assignee: MIZUNO CORPORATIONInventors: Yo Kajiwara, Kazuya Tajima
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Publication number: 20230138934Abstract: A shock-absorbing structure for a sole includes a wavy sheet laminated body in which a plurality of wavy sheets of a wave shape are laminated in the up-down direction to compose three or more layers, one-end sidewall portion provided at one end side in the wave direction of the wave shape of the wavy sheet laminated body and restraining the plurality of wavy sheets, the other-end sidewall portion provided at the other end side in the wave direction of the wave shape of the wavy sheet laminated body and restraining the plurality of wavy sheets, and a connecting portion in which at least a portion of a contact region of the plurality of wavy sheets is connected to one another.Type: ApplicationFiled: October 18, 2022Publication date: May 4, 2023Inventors: Kenjiro KITA, Yo KAJIWARA, Kazuhiro OOMORI, Kazuki URATA
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Publication number: 20220142298Abstract: In one or more embodiments, the present invention relates to a shoe that includes a sole and an upper attached to the sole, in which the upper includes an upper main body that covers the forefoot portion, a portion of the midfoot portion, and the heel portion of the wearer, and a tongue that covers a portion of the midfoot portion, the tongue is connected to the upper main body in a front end portion or in the front end portion and portions of side portions, and the front end portion of the tongue is located such that the path length from a rear end portion of the shoe is a range of 35% or more and 50% or less based on a center line passing from the rear end portion to a front end portion of the shoe. This provides a shoe that has good fittability to the foot and good contact with the foot, and that is easy to put on.Type: ApplicationFiled: October 6, 2021Publication date: May 12, 2022Inventor: Yo KAJIWARA
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Publication number: 20210298415Abstract: A sole structure for a shoe includes an upper wall portion disposed on the upper side, a lower wall portion disposed below and away from the upper wall portion, and a sidewall portion that is disposed between the upper wall portion and the lower wall portion and that is elastically deformable in the vertical direction. The upper and lower wall portions and the sidewall portion are formed of resin-made wall-shaped members. A three-dimensional elastic fiber structure formed of resin fibers is provided in the interior region between the upper wall portion and the lower wall portion. The interior region includes a hollow portion that is in contact with the three-dimensional elastic fiber structure via a partition wall formed of a resin-made wall-shaped member.Type: ApplicationFiled: March 23, 2021Publication date: September 30, 2021Inventors: Kenjiro KITA, Takao ODA, Natsuki SATO, Yo KAJIWARA, Shingo SUDO
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Publication number: 20210298422Abstract: The present invention relates to a shoe including an upper, the upper including an instep cover that covers the instep of a foot. The instep cover includes an instep cover body and a tongue. Two or more protrusions that are configured to extend in use from the instep cover body toward the foot are located at least in a region between the MP joint and the talus in a side portion of the instep cover body. The protrusions are made of embroidery. The protrusions have a height of 0.5 mm or more, a width of 2 mm or more, and a length of 2 mm or more. A distance between each pair of the adjacent protrusions is 2 mm or more in part of the region. The shoe of the present invention includes the upper that improves the heat dissipation properties without impairing the contact between the foot and the shoe.Type: ApplicationFiled: March 5, 2021Publication date: September 30, 2021Inventors: Yo KAJIWARA, Kazuya TAJIMA
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Publication number: 20210251339Abstract: A shoe upper body of a shoe has a stretchable portion made of a stretchable material. The stretchable portion forms a region of the shoe upper body including a portion corresponding to the center of each of the medial malleolus and the lateral malleolus of a foot of a wearer of the shoe and including a position of an ankle opening. The stretchable portion is configured so as to be deformed from a non-stretched state to a stretched state and elastically recover from the stretched state to the non-stretched state.Type: ApplicationFiled: September 27, 2019Publication date: August 19, 2021Inventors: Yohei YOSHIDA, Yuichi SHIMIZU, Tsutomu NAKAMURA, Iemasa HONDA, Yo KAJIWARA, Shingo SUDO
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Publication number: 20210146644Abstract: A method for manufacturing a sole of an article of footwear uses an additive manufacturing through a 3D printer. The sole body 20 has an inclined surface or a curved surface BL0 to be a supported surface by a support at a toe spring portion Tu/a heel-up portion Hu/a side-up portion Su. The method includes a forming process in which a plurality of pillar-shaped supports 20sp that extend from the inclined/curved surface BL0 toward the bottom surface of the sole at the time of forming the sole through the 3D printer, and a cutting process to cut at least a portion of the pillar-shaped supports 20sp.Type: ApplicationFiled: November 13, 2020Publication date: May 20, 2021Inventors: Kenjiro KITA, Takao ODA, Natsuki SATO, Yo KAJIWARA, Shingo SUDO
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Publication number: 20210137211Abstract: A sole structure includes a sole body. The sole body is a resin-made box-shaped member with a predetermined thickness and an interior space that is defined by an upper wall portion disposed on an upper side, a lower wall portion disposed on a lower side and spaced apart from the upper wall portion, and a pair of sidewall portions disposed between and interconnecting the upper wall portion and the lower wall portion in a heel region or a forefoot region that respectively corresponds to a heel portion or a forefoot portion of a foot of a shoe wearer. The sidewall portions are elastically deformable in a vertical direction and have a plurality of solid or hollow ribs that extend in a substantially vertical direction between the upper wall portion and the lower wall portion.Type: ApplicationFiled: November 5, 2020Publication date: May 13, 2021Inventors: Kenjiro KITA, Takao ODA, Natsuki SATO, Yo KAJIWARA, Shingo SUDO
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Publication number: 20210106098Abstract: Provided are a shoe upper and a shoe that have good fittability to the instep side of a foot and are capable of inhibiting the depression of the heal at the time of coming into contact with the ground. The present invention relates to, in one or more embodiments, a shoe upper, and the upper includes an instep cover for covering an instep side of the foot, the instep cover has a structure in which a tongue portion and an instep cover main body are formed as a single body, and a center portion of the instep cover in a width direction is substantially unstretchable in a length direction of the foot. The present invention relates to a shoe in which the shoe upper is integrated with a sole.Type: ApplicationFiled: September 15, 2020Publication date: April 15, 2021Inventor: Yo KAJIWARA
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Publication number: 20210085029Abstract: Provided are a shoe upper that is capable of increasing the joining strength of joined portions of different members, protecting end portions, and improving contact with a foot and the appearance of the shoe, a method for producing the same, and a shoe. In a shoe upper of the present invention, different members are joined together through embroidery covering an end portion of at least one of the members, and at least one member forms a three-dimensional shape.Type: ApplicationFiled: September 17, 2020Publication date: March 25, 2021Inventor: Yo KAJIWARA
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Publication number: 20200305543Abstract: In the sole, inequalities, m2?m1, m1?f and m1?h are satisfied, wherein the rearmost end of the foot-sole-contact-side surface is set to the origin, the path measured along the surface from the origin to the tip of the toe is set to L, the sole thicknesses at the positions of Sh(0.16×L), Sm2 {(0.3-0.5)×L}, Sm1{(0.4?0.6)×L} and Sf(0.7×L) are set to h, m2, m1 and f, respectively. An inequality, ?2>?1 is satisfied, wherein the angle between the line connecting the positions Sm1, Sh and the horizontal plane is set to ?1, and the angle between the line connecting the positions Sm1?, Sh? and the horizontal plane is set to ?2, in which the position where the vertical lines drawn from the positions Sm1, Sh cross the ground-contact surface are set to Sm1?, Sh?, respectively. The ground-contact surface has a downwardly convexly curved shape at the forefoot region.Type: ApplicationFiled: March 17, 2020Publication date: October 1, 2020Inventors: Yo KAJIWARA, Yohei YOSHIDA
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Publication number: 20200154822Abstract: A sole of a sole structure includes an upper wall portion disposed on an upper side, a lower wall portion disposed on a lower side and spaced away from the upper wall portion, and a pair of sidewall portions that extend substantially in a vertical direction between the upper wall portion and the lower wall portion, that have a vertical zigzag shape, that are coupled to the upper wall portion and the lower wall portion, and that extend in a longitudinal direction along the outer peripheries of the upper wall portion and the lower wall portion. The upper wall portion and the lower wall portion and a pair of sidewall portions are resin-made wall members with a predetermined thickness and form an interior space. Each of the sidewall portions has concave parts recessed inwardly and convex parts protruding outwardly and it is compressible in the vertical direction.Type: ApplicationFiled: November 7, 2019Publication date: May 21, 2020Inventors: Kenjiro KITA, Takao ODA, Yo KAJIWARA
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Publication number: 20200093223Abstract: A sole structure includes a plate placed between an outsole and a midsole and disposed at the position corresponding to at least the forefoot and the midfoot of a wearer's foot, and a cushioning body disposed so as to face the sole of the wearer's foot at the position corresponding to the midfoot and the hindfoot of the wearer's foot and capable of absorbing a vertical impact on the upper surface of the cushioning body. The cushioning body and the plate body overlap each other in the vertical direction at the position corresponding to the midfoot of the wearer's foot.Type: ApplicationFiled: September 24, 2019Publication date: March 26, 2020Inventors: Kazunori Iuchi, Yo Kajiwara, Kouji Ito, Akira Morita, Shingo Sudo
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Publication number: 20200093218Abstract: A sole structure includes an upper midsole made of an elastic material and a lower midsole made of an elastic material and bonded from below to the upper midsole. The upper midsole has first protrusions protruding toward the lower midsole, and the tip ends of the first protrusions are in contact with the lower midsole such that the tip ends of the first protrusions can move with respect to the lower midsole.Type: ApplicationFiled: September 20, 2019Publication date: March 26, 2020Inventors: Yo Kajiwara, Kazunori Iuchi, Kouji Ito, Akira Morita, Shingo Sudo
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Publication number: 20200093219Abstract: A sole structure includes a plate placed between an outsole and a midsole. The plate includes a plate body and first openings. The plate body is made of a material less stretchable than the material of the outsole and is in the form of a thin plate. Each of the first openings extends through a part of the plate body in the vertical direction. The first openings are disposed at a position corresponding to the forefoot and the midfoot on the medial side of a wearer's foot and is covered by the outsole from below.Type: ApplicationFiled: September 24, 2019Publication date: March 26, 2020Inventors: Kazunori Iuchi, Yo Kajiwara, Kouji Ito, Akira Morita, Shingo Sudo
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Publication number: 20200077746Abstract: An upper includes bottom and top upper parts, a first gap located at a location corresponding to a medial side of a foot of a wearer, and a tightening part for tightening the bottom and top upper parts. The bottom upper part includes a first arch cover part for supporting a medial longitudinal arch of the foot from below. The first gap includes a first arch region disposed at a location corresponding to the medial longitudinal arch. The tightening part is configured to adjust and reduce at least a dimension of the first arch region in a vertical direction.Type: ApplicationFiled: September 6, 2019Publication date: March 12, 2020Inventor: Yo Kajiwara