Patents by Inventor Takeshi Takeshita
Takeshi Takeshita 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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Publication number: 20240079888Abstract: A secondary battery protection integrated circuit includes a first power supply terminal, a second power supply terminal, an input terminal, an output terminal, and a control circuit. The control circuit turns a discharge control transistor off to change to a discharge-blocked state in which the output terminal and the first power supply terminal are coupled to each other, upon occurrence in a condition in which a potential level of the input terminal changes from a first level. The control circuit turns the discharge control transistor on in the discharge blocked state, upon occurrence of a condition in which the input terminal changes from a second level that is different from the first level.Type: ApplicationFiled: August 7, 2023Publication date: March 7, 2024Applicant: MITSUMI ELECTRIC CO., LTD.Inventors: Takeshi YAMAGUCHI, Junji TAKESHITA
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Patent number: 10743612Abstract: A midsole structure for a shoe not only maintains stability at the time of impacting the ground and improves cushioning property but also eliminates discomfort to a foot sole and improves ride feeling during running. The midsole structure (1) comprises at least two midsoles provided at a heel region of the shoe and having a hardness difference. On opposite sides of the heel region, an upper midsole (2) of a greater hardness has a thickness greater than a thickness of a lower midsole (3) of a smaller hardness. In a central part of the heel region, the lower midsole (3) of a smaller hardness has a thickness greater than a thickness of the upper midsole (2) of a greater hardness. Boundary surfaces (2B, 3A) between the upper midsole (2) and the lower midsole (3) do not appear on a top surface of the midsole structure (1) (that is, a foot sole contact surface (2A) of the upper midsole (2)).Type: GrantFiled: January 29, 2016Date of Patent: August 18, 2020Assignee: Mizuno CorporationInventors: Kazunori Iuchi, Tatsuya Dazai, Yoshitaka Takahashi, Takeshi Takeshita
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Patent number: 10470521Abstract: A sole structure includes an outsole having a ground surface as a lower surface; a midsole stacked on a top of the outsole and made of an elastic material; and a supporter provided around a middle of the midsole in a thickness direction, and extending longitudinally to include a heel region corresponding to a heel of a foot. The supporter includes a base provided in a central region of the heel region in a foot width direction, and a corrugated side provided continuously with each side of the base in the foot width direction, and including a ridge with its apex located above the base, and a groove provided continuously with a rear of the ridge with its bottom located below the base at the rear of the heel region.Type: GrantFiled: September 30, 2016Date of Patent: November 12, 2019Assignee: MIZUNO CORPORATIONInventors: Kazunori Iuchi, Takeshi Takeshita, Shogo Matsui
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Patent number: 10433616Abstract: A sole structure for shoes includes a midsole and a plate member made of a hard resin harder than the midsole, which is joined to a lower surface of the midsole. The plate member includes a first reinforcement portion extending rearwardly from a position corresponding to a portion in the rear of a thenar of a user along a medial side arch region and a second reinforcement portion extending rearwardly on a lateral side from the position corresponding to the portion in the rear of the thenar of the user so as to avoid a position corresponding to a portion more frontward than a center of a fifth metatarsal bone.Type: GrantFiled: June 3, 2016Date of Patent: October 8, 2019Assignee: MIZUNO CORPORATIONInventors: Takeshi Takeshita, Tatsuya Dazai
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Patent number: 9936765Abstract: A sole structure for a shoe that can reduce the burden of MP joints and a knee joint of a shoe wearer's foot during running and that can improve cushioning properties. The sole structure of the shoe includes an upper plate of a hard elastic member disposed at a forefoot region of the shoe, a lower plate of a hard elastic member disposed under and spaced away from the upper plate, and a midsole of a soft elastic member interposed between the upper plate and the lower plate. The midsole has a longitudinally extending hollow portion that is upwardly concavely curved at a lateral mid-portion of the midsole. The lower plate has a concave portion corresponding to the hollow portion of the midsole.Type: GrantFiled: July 14, 2016Date of Patent: April 10, 2018Assignee: Mizuno CorporationInventors: Natsuki Sato, Takao Oda, Takeshi Takeshita, Shogo Matsui
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Publication number: 20180027923Abstract: A midsole structure for a shoe not only maintains stability at the time of impacting the ground and improves cushioning property but also eliminates discomfort to a foot sole and improves ride feeling during running. The midsole structure (1) comprises at least two midsoles provided at a heel region of the shoe and having a hardness difference. On opposite sides of the heel region, an upper midsole (2) of a greater hardness has a thickness greater than a thickness of a lower midsole (3) of a smaller hardness. In a central part of the heel region, the lower midsole (3) of a smaller hardness has a thickness greater than a thickness of the upper midsole (2) of a greater hardness. Boundary surfaces (2B, 3A) between the upper midsole (2) and the lower midsole (3) do not appear on a top surface of the midsole structure (1) (that is, a foot sole contact surface (2A) of the upper midsole (2)).Type: ApplicationFiled: January 29, 2016Publication date: February 1, 2018Applicant: Mizuno CorporationInventors: Kazunori IUCHI, Tatsuya DAZAI, Yoshitaka TAKAHASHI, Takeshi TAKESHITA
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Publication number: 20170325543Abstract: A sole structure includes an outsole having a ground surface as a lower surface; a midsole stacked on a top of the outsole and made of an elastic material; and a supporter provided around a middle of the midsole in a thickness direction, and extending longitudinally to include a heel region corresponding to a heel of a foot. The supporter includes a base provided in a central region of the heel region in a foot width direction, and a corrugated side provided continuously with each side of the base in the foot width direction, and including a ridge with its apex located above the base, and a groove provided continuously with a rear of the ridge with its bottom located below the base at the rear of the heel region.Type: ApplicationFiled: September 30, 2016Publication date: November 16, 2017Inventors: Kazunori IUCHI, Takeshi TAKESHITA, Shogo MATSUI
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Publication number: 20170035143Abstract: A sole structure for a shoe that can reduce the burden of MP joints and a knee joint of a shoe wearer's foot during running and that can improve cushioning properties. The sole structure of the shoe includes an upper plate of a hard elastic member disposed at a forefoot region of the shoe, a lower plate of a hard elastic member disposed under and spaced away from the upper plate, and a midsole of a soft elastic member interposed between the upper plate and the lower plate. The midsole has a longitudinally extending hollow portion that is upwardly concavely curved at a lateral mid-portion of the midsole. The lower plate has a concave portion corresponding to the hollow portion of the midsole.Type: ApplicationFiled: July 14, 2016Publication date: February 9, 2017Inventors: Natsuki SATO, Takao ODA, Takeshi TAKESHITA, Shogo MATSUI
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Publication number: 20160353838Abstract: A sole structure for shoes includes a midsole and a plate member made of a hard resin harder than the midsole, which is joined to a lower surface of the midsole. The plate member includes a first reinforcement portion extending rearwardly from a position corresponding to a portion in the rear of a thenar of a user along a medial side arch region and a second reinforcement portion extending rearwardly on a lateral side from the position corresponding to the portion in the rear of the thenar of the user so as to avoid a position corresponding to a portion more frontward than a center of a fifth metatarsal bone.Type: ApplicationFiled: June 3, 2016Publication date: December 8, 2016Inventors: Takeshi TAKESHITA, Tatsuya DAZAI
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Publication number: 20150107132Abstract: The invention is directed to improving a sole deformability of a forefoot portion and a heel portion. The sole structure 1 includes an upper plate 2 disposed on an upper side of the sole assembly 1, a lower plate 3 that is disposed under the upper plate 2 and that forms a gap S with the upper plate 2, and a pillar-shaped connecting member 4 that is provided in the gap S and that vertically interconnects the upper plate 2 with the lower plate 3. At least a portion of the lower plate 3 is divided in the longitudinal direction by a lateral indentation 30 at a position that the connecting member 4 is in contact with.Type: ApplicationFiled: March 31, 2014Publication date: April 23, 2015Inventor: Takeshi Takeshita
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Patent number: 8261392Abstract: A method of manufacturing a sole according to the present invention includes the steps of obtaining a rubber part by previously crosslinking a polymer mixture containing 50 to 100 mass % of a diene-based polymer and 0 to 40 mass % of an acrylonitrile component in a polymer component of the polymer mixture, halogenating the rubber part, and bonding the rubber part and thermoplastic resin to each other by molding said thermoplastic resin on said rubber part.Type: GrantFiled: December 8, 2009Date of Patent: September 11, 2012Assignee: Mizuno Corp.Inventors: Yoshihiro Yabushita, Akihiro Miyauchi, Takeshi Takeshita
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Publication number: 20110239489Abstract: The sole structure 1 has an upper plate, a lower midsole located under and fixedly attached to the upper plate, and having a laterally extending groove opening to the bottom side of the lower midsole, and a bending restriction member formed in a bent shape and spanning the groove longitudinally between the front edge and the rear edge of the opening of the groove. During the beginning phase of sole bending, the bending restriction member allows for the sole to bend till the bending restriction member gradually extends toward a straight shape from the bent shape and becomes taut between the front edge and the rear edge of the opening of the groove. During the advanced phase of the sole bending, when the bending restriction member experiences a force from the taut state, it functions so as to restrict the sole from bending.Type: ApplicationFiled: March 28, 2011Publication date: October 6, 2011Applicant: Mizuno CorporationInventors: Kazunori IUCHI, Natsuki Sato, Takeshi Takeshita
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Publication number: 20100146823Abstract: A method of manufacturing a sole according to the present invention includes the steps of obtaining a rubber part by previously crosslinking a polymer mixture containing 50 to 100 mass % of a diene-based polymer and 0 to 40 mass % of an acrylonitrile component in a polymer component of the polymer mixture, halogenating the rubber part, and bonding the rubber part and thermoplastic resin to each other by molding said thermoplastic resin on said rubber part.Type: ApplicationFiled: December 8, 2009Publication date: June 17, 2010Applicant: Mizuno CorporationInventors: Yoshihiro Yabushita, Akihiro Miyauchi, Takeshi Takeshita
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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: D777410Type: GrantFiled: March 25, 2015Date of Patent: January 31, 2017Assignee: MIZUNO CORPORATIONInventors: Yoshitaka Takahashi, Takeshi Takeshita