Patents by Inventor Kenjiro Kita
Kenjiro Kita 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: 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: 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: 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: 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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Patent number: 8291615Abstract: An inner sole structure for a sports shoe includes an upper sheet, a lower sheet below the upper sheet, and a wavy corrugated sheet interposed between the upper and lower sheets. The wavy corrugated sheet has at least two downwardly convex protrusions that form voids between the wavy corrugated sheet and the lower sheet, and that are in sliding contact with an upper surface of the lower sheet. The downwardly convex protrusions of the wavy corrugated sheet slide longitudinally along the lower sheet member when they are subjected to compressive deformation.Type: GrantFiled: February 5, 2009Date of Patent: October 23, 2012Assignee: Mizuno CorporationInventors: Kenjiro Kita, Kazuhiko Suzuki
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Patent number: 8181360Abstract: A sole structure 1 for a shoe comprises an upper plate 2 that is disposed on the upper side of the structure 1 and that has upraised portions 20 projecting upwardly form opposite side edge portions of the upper plate 2, a lower plate 3 disposed below the upper plate 2, and a plurality of longitudinally separated connecting portions 4, 5 and 6 that are disposed between the upper plate 2 and the lower plates 3 to form voids 10 therebetween and that elastically connect the upper plate 2 with the lower plate 3. The upper end of the connecting portion 5 extends upwardly to the side surface of the upraised portion 20 of the upper plate 2 and a projecting portion 5b that projects in the longitudinal direction is provided at the extension 5a. The extension 5a and the projecting portion 5b are fixedly attached to the side surface of the upraised portion 20.Type: GrantFiled: March 12, 2009Date of Patent: May 22, 2012Assignee: Mizuno CorporationInventors: Kenjiro Kita, Kazuhiko Suzuki, Toshiya Horioka
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Patent number: 7624515Abstract: A sole structure is provided that can improve cushioning and bending properties of the sole heel portion. The sole assembly 1 is formed of an upper plate 2 disposed on the upper side of the heel portion H, a wavy lower plate 3 provided below the upper plate 2 in the heel portion H and having at least two convex portions 30, 31 that protrude downwardly and that are adapted to form voids C relative to the upper plate 2, and a plurality of cleats that are provided on the lower surfaces of the convex portions of the lower plate and/or a cleat that is provided between adjacent convex portions of the lower plate.Type: GrantFiled: May 30, 2006Date of Patent: December 1, 2009Assignee: Mizuno CorporationInventors: Kenjiro Kita, Takao Oda, Akihiro Miyauchi
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Publication number: 20090241377Abstract: A sole structure 1 for a shoe comprises an upper plate 2 that is disposed on the upper side of the structure 1 and that has upraised portions 20 projecting upwardly form opposite side edge portions of the upper plate 2, a lower plate 3 disposed below the upper plate 2, and a plurality of longitudinally separated connecting portions 4, 5 and 6 that are disposed between the upper plate 2 and the lower plates 3 to form voids 10 therebetween and that elastically connect the upper plate 2 with the lower plate 3. The upper end of the connecting portion 5 extends upwardly to the side surface of the upraised portion 20 of the upper plate 2 and a projecting portion 5b that projects in the longitudinal direction is provided at the extension 5a. The extension 5a and the projecting portion 5b are fixedly attached to the side surface of the upraised portion 20.Type: ApplicationFiled: March 12, 2009Publication date: October 1, 2009Applicant: Mizuno CorporationInventors: Kenjiro Kita, Kazuhiko Suzuki, Toshiya Horioka
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Publication number: 20090241373Abstract: An inner sole structure 3 for a sports shoe 1 includes an upper sheet member 30 disposed on an upper side of a heel region of the shoe 1, a lower sheet member 31 disposed below the upper sheet member 30, and a wavy corrugated sheet member 32 that is interposed between the upper sheet member 30 and the lower sheet member 31, that has at least two downwardly protruding protrusions 32a, 32b adapted to form voids V0, V1?, V1 with the upper and lower sheet members 30, 31, and that is in contact with an upper surface 31a of the lower sheet member 31. Each of downwardly convex portions 32a1, 32b1 of the protrusions 32a, 32b of the wavy corrugated sheet member 32 slides longitudinally on the lower sheet member 31 at the time of compressive deformation of the protrusions 32a, 32b.Type: ApplicationFiled: February 5, 2009Publication date: October 1, 2009Applicant: MIZUNO CORPORATIONInventors: Kenjiro Kita, Kazuhiko Suzuki
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Patent number: 7513065Abstract: A sole structure is provided that can improve bendability and cushioning ability of the sole forefoot portion. The sole assembly 1 is formed of an upper plate 2, and a lower plate 3 provided below the upper plate 2 and spaced apart from the upper plate 2 via a void S. The lower plate 3 has a plurality of protrusions 30 that protrude toward the upper plate 2. The longitudinal path length L1 of the lower plate 3 is longer than the longitudinal path length L2 of the upper plate 2. More specifically, the path length L1 of the lower plate 3 is 40-60% longer than the path length L2 of the upper plate 2.Type: GrantFiled: December 22, 2005Date of Patent: April 7, 2009Assignee: Mizuno CorporationInventors: Kenjiro Kita, Akihiro Miyauchi, Koji Ito
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Patent number: 7484317Abstract: A sole structure is provided that can improve cushioning and bending properties of the sole heel portion. The sole assembly 1 is formed of an upper plate 2 disposed on the upper side of the heel portion H, a wavy lower plate 3 provided below the upper plate 2 in the heel portion H and having at least two convex portions 30, 31 that protrude downwardly and that are adapted to form voids C relative to the upper plate 2, and a plurality of outsole portions 51-55 that are divided in the longitudinal direction and that are attached to the lower surfaces of the convex portions 30, 31 of the lower plate 3.Type: GrantFiled: December 22, 2005Date of Patent: February 3, 2009Assignee: Mizuno CorporationInventors: Kenjiro Kita, Takao Oda
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Publication number: 20060283045Abstract: A sole structure is provided that can improve cushioning and bending properties of the sole heel portion. The sole assembly 1 is formed of an upper plate 2 disposed on the upper side of the heel portion H, a wavy lower plate 3 provided below the upper plate 2 in the heel portion H and having at least two convex portions 30, 31 that protrude downwardly and that are adapted to form voids C relative to the upper plate 2, and a plurality of outsole portions 51-55 that are divided in the longitudinal direction and that are attached to the lower surfaces of the convex portions 30, 31 of the lower plate 3.Type: ApplicationFiled: December 22, 2005Publication date: December 21, 2006Applicant: Mizuno CorporationInventors: Kenjiro Kita, Takao Oda
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Publication number: 20060265902Abstract: A sole structure is provided that can improve cushioning and bending properties of the sole heel portion. The sole assembly 1 is formed of an upper plate 2 disposed on the upper side of the heel portion H, a wavy lower plate 3 provided below the upper plate 2 in the heel portion H and having at least two convex portions 30, 31 that protrude downwardly and that are adapted to form voids C relative to the upper plate 2, and a plurality of outsole portions 51-55 that are divided in the longitudinal direction and that are attached to the lower surfaces of the convex portions 30, 31 of the lower plate 3.Type: ApplicationFiled: May 30, 2006Publication date: November 30, 2006Inventors: Kenjiro Kita, Takao Oda, Akihiro Miyauchi
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Publication number: 20060137227Abstract: A sole structure is provided that can improve bendability and cushioning ability of the sole forefoot portion. The sole assembly 1 is formed of an upper plate 2, and a lower plate 3 provided below the upper plate 2 and spaced apart from the upper plate 2 via a void S. The lower plate 3 has a plurality of protrusions 30 that protrude toward the upper plate 2. The longitudinal path length L1 of the lower plate 3 is longer than the longitudinal path length L2 of the upper plate 2. More specifically, the path length L1 of the lower plate 3 is 40-60% longer than the path length L2 of the upper plate 2.Type: ApplicationFiled: December 22, 2005Publication date: June 29, 2006Applicant: Mizuno CorporationInventors: Kenjiro Kita, Akihiro Miyauchi, Koji Ito
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Publication number: 20050000115Abstract: A hard elastic body (10) having a longitudinally extending cavity (13) formed therein is provided mainly at a forefoot region (F) of a sole body. The cavity (13) is formed of a first curved surface (11) extending curvedly in a longitudinal direction and a second curved surface (12) disposed under the first curved surface (11) and extending curvedly in a longitudinal direction as well. A front and rear end of the second curved surface (12) is connected to a front and rear end of the first curved surface (11) respectively and an intermediate portion of the second curved surface (12) is spaced apart downwardly from an intermediate portion of the first curved surface (11). A path (PQ1) between the front and rear end of the first curved surface (11) is substantially equal to a path (PQ2) between the front and rear end of the second curved surface (12). When the first curved surface (11) is pressed downwardly, the sole body is deformed in such a way that a rear foot region (R) of the sole body is lifted upwardly.Type: ApplicationFiled: June 3, 2004Publication date: January 6, 2005Inventors: Takaya Kimura, Yasunori Kaneko, Takeshi Takeshita, Kazuhiko Suzuki, Kenji Araki, Natsuki Sato, Takao Oda, Kenjiro Kita
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Patent number: 6745500Abstract: The present invention provides a belt fastening means that can improve fittability of a shoe and that can equally tighten an upper of the shoe to a wearer's foot without hindering the movement of the foot. A belt fastening means for a shoe includes a first belt member disposed mainly on a lateral side portion of an upper and a second belt member disposed mainly on a medial side portion of the upper. The first and second belt members are located at nearly symmetrical positions with respect to an opening portion. A proximal end portion of the first belt member is connected to a sole on the lateral side and a distal end portion thereof extends over the opening portion. The first belt member extends in a direction nearly perpendicular to a ridge line of an instep portion as viewed from a lateral side of the shoe. A proximal end portion of the second belt member is connected to the sole on the medial side and a distal end portion thereof extends over the opening portion.Type: GrantFiled: April 23, 2002Date of Patent: June 8, 2004Assignee: Mizuno CorporationInventors: Kazuhiko Suzuki, Kenjiro Kita, Yoshimasa Shinomura
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Patent number: 6711834Abstract: The present invention relates to a sole structure of an athletic shoe and its object is to effectively absorb a shock applied to a shoe heel portion directly after landing and to prevent pronation or supination after landing.Type: GrantFiled: September 21, 2001Date of Patent: March 30, 2004Assignee: Mizuno CorporationInventor: Kenjiro Kita