Patents Assigned to Yonex Kabushiki Kaisha
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Patent number: 10974100Abstract: A racket includes: a grip; an annular frame; and a shaft coupling the grip and the frame together; wherein a projection is provided to an outer peripheral face on a leading end half of the frame in a predetermined range including a location of maximum curvature in a peripheral direction.Type: GrantFiled: April 27, 2017Date of Patent: April 13, 2021Assignee: YONEX KABUSHIKI KAISHAInventors: Naoto Ogawa, Masato Kawabata, Hitoshi Kato, Tsutomu Takahashi
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Patent number: 10857440Abstract: An artificial shuttlecock feather for implanting in a circular ring shape into a shuttlecock base, including: a vane section and a rachis section having one end in an axial direction of the rachis section fixed to the base and supporting the vane section provided to another end side of the rachis section, a hole being formed in the vane section so as to penetrate the vane section, and a porosity of a first region of the vane section being lower than a porosity of a second region of the vane section, the first region spanning from an edge on the one end side in the axial direction to a predetermined position further toward the one end side than a center of vane section in the axial direction, the second region spanning from the predetermined position to an edge on the other end side in the axial direction.Type: GrantFiled: April 28, 2017Date of Patent: December 8, 2020Assignees: YONEX KABUSHIKI KAISHA, TOHOKU UNIVERSITYInventors: Yusuke Matsushima, Takumi Sakaguchi, Yasufumi Konishi
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Patent number: 10786718Abstract: An artificial shuttlecock feather for implanting in a circular ring shape into a shuttlecock base, including: a vane section and a rachis section having one end in an axial direction of the rachis section fixed to the base and supporting the vane section provided to another end side of the rachis section, a hole being formed in the vane section so as to penetrate the vane section, and a porosity of a first region of the vane section being lower than a porosity of a second region of the vane section, the first region spanning from an edge on the one end side in the axial direction to a predetermined position further toward the one end side than a center of vane section in the axial direction, the second region spanning from the predetermined position to an edge on the other end side in the axial direction.Type: GrantFiled: March 6, 2020Date of Patent: September 29, 2020Assignees: YONEX KABUSHIKI KAISHA, TOHOKU UNIVERSITYInventors: Yusuke Matsushima, Takumi Sakaguchi, Yasufumi Konishi
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Publication number: 20200206596Abstract: An artificial shuttlecock feather for implanting in a circular ring shape into a shuttlecock base, including: a vane section and a rachis section having one end in an axial direction of the rachis section fixed to the base and supporting the vane section provided to another end side of the rachis section, a hole being formed in the vane section so as to penetrate the vane section, and a porosity of a first region of the vane section being lower than a porosity of a second region of the vane section, the first region spanning from an edge on the one end side in the axial direction to a predetermined position further toward the one end side than a center of vane section in the axial direction, the second region spanning from the predetermined position to an edge on the other end side in the axial direction.Type: ApplicationFiled: March 6, 2020Publication date: July 2, 2020Applicants: YONEX KABUSHIKI KAISHA, TOHOKU UNIVERSITYInventors: Yusuke MATSUSHIMA, Takumi SAKAGUCHI, Yasufumi KONISHI
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Patent number: 10576346Abstract: An artificial shuttlecock feather for implanting in a circular ring shape into a base of a shuttlecock, the artificial feather includes: a vane section; and a rachis section supporting the vane section, the rachis section being formed from a material having a Charpy impact strength of 30 kJ/m2 or greater and a flexural modulus of 4 GPa or greater, and preferably having a Charpy impact strength of 36 kJ/m2 or greater and a flexural modulus of 4.7 GPa or greater.Type: GrantFiled: April 27, 2017Date of Patent: March 3, 2020Assignee: YONEX KABUSHIKI KAISHAInventors: Takumi Sakaguchi, Shinichiro Chiba
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Patent number: 9750989Abstract: A racket including: a grip; an annular frame provided with a plurality of through holes extending through from an inner peripheral face to an outer peripheral face; a shaft connecting the grip and the frame; and a grommet to be attached to the outer peripheral face of the frame, the grommet including: a plurality of tube sections to be inserted into each of the plurality of through holes provided to the frame; and a base section that connects the plurality of tube sections to one another, the tube sections each including a communicating hole that communicates a base section side opening on the base section side with a tip end side opening on the side to be inserted through the through hole, the tip end side openings of at least some number of the tube sections, of the plurality of tube sections through which a string to be strung in a direction along a longitudinal direction of the racket is inserted, being wider than the base section side openings in a direction in which the plurality of tube sections is arrType: GrantFiled: June 18, 2014Date of Patent: September 5, 2017Assignee: Yonex Kabushiki KaishaInventors: Naoto Ogawa, Junya Suetake
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Publication number: 20170173407Abstract: A racket including: a grip; an annular frame provided with a plurality of through holes extending through from an inner peripheral face to an outer peripheral face; a shaft connecting the grip and the frame; and a grommet to be attached to the outer peripheral face of the frame, the grommet including: a plurality of tube sections to be inserted into each of the plurality of through holes provided to the frame; and a base section that connects the plurality of tube sections to one another, the tube sections each including a communicating hole that communicates a base section side opening on the base section side with a tip end side opening on the side to be inserted through the through hole, the tip end side openings of at least some number of the tube sections, of the plurality of tube sections through which a string to be strung in a direction along a longitudinal direction of the racket is inserted, being wider than the base section side openings in a direction in which the plurality of tube sections is arrType: ApplicationFiled: June 18, 2014Publication date: June 22, 2017Applicant: Yonex Kabushiki KaishaInventors: Naoto OGAWA, Junya SUETAKE
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Patent number: 9597555Abstract: Performance of a racket can be adjusted. A racket includes a grip, an annular frame that is provided with a plurality of through holes that penetrate from an inner circumferential face to an outer circumferential face, and a shaft that connects the grip and the frame in a shaft axis direction, the frame having a rear end side attachment part, on the outer circumferential face of the frame and on a side closer to the shaft in the shaft axis direction, where there is mounted a rear end side attachment to which a string tensely provided to the frame is routed, and the rear end side attachment being made of a material different from the frame.Type: GrantFiled: June 4, 2015Date of Patent: March 21, 2017Assignee: Yonex Kabushiki KaishaInventors: Taketoshi Goto, Yosuke Yamanaka
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Patent number: 8992355Abstract: An artificial feather for a shuttlecock including a vane portion in a thin film form, corresponding to a vane, and a rachis portion in a bar form extending integrally and continuously from an upper tip end to a lower distal end, corresponding to a rachis, to imitate a natural feather, the vane portion being made of thermoplastic resin having interconnecting bubbles therein, and having low specific gravity and low elasticity relative to the rachis portion, the rachis portion being made of thermoplastic resin being fixed to the vane portion at a vane support portion, having the vane support portion set as an area that is fixed to the vane portion along the tip end to a bottom end of the vane portion, and having a calamus portion set as an area that protrudes to a lower side of the vane portion and spans from a bottom end of the vane support portion to the distal end, to correspond to a calamus of the natural feather.Type: GrantFiled: August 18, 2011Date of Patent: March 31, 2015Assignee: Yonex Kabushiki KaishaInventors: Wataru Yoneyama, Kensuke Tanaka, Seiya Miyazaki
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Publication number: 20140256480Abstract: A racket including: a handle; an annular frame having a plurality of through holes, and a groove section provided on an outer peripheral face of the frame along a circumferential direction of the frame; a shaft connecting the handle and the frame; and a string that passes through the through hole to the outside of the frame, and that is folded back on the groove section, wherein when either one of a longitudinal direction of the racket and a width direction perpendicular to the longitudinal direction on a hitting surface of the racket is defined as a first direction, a depth of a position at which the string is folded back at a second position in the first direction is smaller or less than a depth of a position at which the string is folded back at a first position in the first direction, the first position being located on the outer peripheral face of the frame, the second position being located on the outer peripheral face of the frame and outside of the first position in the first direction.Type: ApplicationFiled: March 3, 2014Publication date: September 11, 2014Applicant: YONEX KABUSHIKI KAISHAInventors: Naoto OGAWA, Shinji SAITO, Tomoya IWASAWA
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Publication number: 20140155201Abstract: An artificial feather for a shuttlecock including: a sheet form vane portion; and a rachis portion supporting the vane portion, the rachis portion being made of resin including glass fiber and carbon nanotube.Type: ApplicationFiled: July 27, 2012Publication date: June 5, 2014Applicant: YONEX KABUSHIKI KAISHAInventor: Wataru Yoneyama
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Publication number: 20130244817Abstract: A tennis racket includes a frame that surrounds a hitting face for hitting a ball, wherein a foam material is provided inside two side portions of the frame on opposite sides of a predetermined area of the hitting face, and the two side portions of the frame have a strength that is higher than a strength of another portion of the frame.Type: ApplicationFiled: February 26, 2013Publication date: September 19, 2013Applicant: YONEX KABUSHIKI KAISHAInventors: Shinji Saito, Junya Suetake, Tomoya Iwasawa
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Patent number: 8533977Abstract: In order to provide an athletic shoe that does not get caught even when a strong effort to hold on is made when sliding sideways, and that allows for light footwork, the present invention provides an athletic shoe that has an undersurface of a midsole 22 that is formed with a raised portion 24, along a circumferential side edge thereof affixed with an outersole 30 that forms an outsole, and an extending portion 32 that extends up to a circumferential side surface of the midsole is formed at a perimeter edge of the outersole, wherein: at a portion along a little toe of the circumferential side surface 22a of the midsole, a bulged portion 29 having a thickness equal to or more than a thickness substantially corresponding to a thickness of the raised portion 24 of the midsole in a shoe width direction is integrally formed so as to protrude outward, and the extending portion 32 is formed extending from the perimeter edge of the outersole 30 toward a protruding surface of the bulged portion 29 and the extending poType: GrantFiled: February 7, 2007Date of Patent: September 17, 2013Assignee: Yonex Kabushiki KaishaInventors: Kazushi Hide, Tomonori Sekine, Tomokazu Kai
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Publication number: 20130225339Abstract: An artificial feather for a shuttlecock including a vane portion in a thin film form, corresponding to a vane, and a rachis portion in a bar form extending integrally and continuously from an upper tip end to a lower distal end, corresponding to a rachis, to imitate a natural feather, the vane portion being made of thermoplastic resin having interconnecting bubbles therein, and having low specific gravity and low elasticity relative to the rachis portion, the rachis portion being made of thermoplastic resin being fixed to the vane portion at a vane support portion, having the vane support portion set as an area that is fixed to the vane portion along the tip end to a bottom end of the vane portion, and having a calamus portion set as an area that protrudes to a lower side of the vane portion and spans from a bottom end of the vane support portion to the distal end, to correspond to a calamus of the natural feather.Type: ApplicationFiled: August 18, 2011Publication date: August 29, 2013Applicant: YONEX KABUSHIKI KAISHAInventors: Wataru Yoneyama, Kensuke Tanaka, Seiya Miyazaki
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Publication number: 20130210564Abstract: A plurality of artificial feathers for a shuttlecock, when a hemispherical base portion of the shuttlecock is set on a lower side, the artificial feathers being embedded in an annular ring form on a peripheral border of a circular top end face of the base portion, the artificial feathers for a shuttlecock each including a vane portion in a thin film form, corresponding to a vane, the vane portion being provided with a reinforcement coating made of applied resin, and a rachis portion in a bar form extending integrally and continuously from an upper tip end to a lower distal end, corresponding to a rachis, to imitate a natural feather, the rachis portion being fixed to the vane portion at a vane support portion, having the vane support portion set as an area that is fixed to the vane portion along the tip end to a bottom end of the vane portion, and having a calamus portion set as an area that protrudes to a lower side of the vane portion and spans from a bottom end of the vane support portion to the distal endType: ApplicationFiled: September 6, 2011Publication date: August 15, 2013Applicant: YONEX KABUSHIKI KAISHAInventors: Wataru Yoneyama, Kensuke Tanaka, Seiya Miyazaki
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Patent number: 8211266Abstract: A badminton racket that is strong in respect to impact and twist and that is high in surface stability and a manufacturing method of the badminton racket is provided. A badminton racket includes a frame formed circularly, a shaft joined to the frame, a joint installed reaching inside the frame and the shaft at a joint portion of the frame and the shaft, and an expandable resin placed between the joint and the frame. A badminton racket manufacturing method includes an expandable resin placing process that places an expandable resin that expands when heated on an outer periphery of a portion of a joint, the joint being to be installed to reach inside a frame formed with the resin sheet tube and inside a shaft, the portion being to be installed in the frame.Type: GrantFiled: July 29, 2008Date of Patent: July 3, 2012Assignee: Yonex Kabushiki KaishaInventor: Minoru Yoneyama
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Patent number: 8206248Abstract: A tennis racket includes a frame that includes a shaft and a looped frame portion, the shaft having a grip formed on one end side thereof, the frame portion being joined to the other end side of the shaft and forming a hitting face with a string being strung across and a plurality of insertion holes that provide communication between an inner peripheral side surface and an outer peripheral side surface of the frame portion and through which the string is inserted. Shock absorbing portions and hard portions are provided in an alternating fashion on at least a part of the outer peripheral side surface of the frame portion. Each shock absorbing portion is formed between insertion holes that are adjacent to each other. Each hard portion is formed between insertion holes that are adjacent to each other and is less elastically deformable than the shock absorbing portion.Type: GrantFiled: June 29, 2010Date of Patent: June 26, 2012Assignee: Yonex Kabushiki KaishaInventors: Masatoshi Iizawa, Tadashi Saito, Naoto Ogawa
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Patent number: 8105185Abstract: A shuttlecock including a cap and a skirt part whereto an air passage hole is formed, wherein a rib is provided to the skirt part, adjacent to a rear end of the air passage hole in a generatrix direction of the skirt part, the rib having a shape wherein air pressure difference is generated between an air flow passing through the air passage hole to flow on an inside of the rib and an air flow not passing through the air passage hole but to flow on an outside of the rib, and an aerodynamic force directed from the inside of the rib to the outside is generated.Type: GrantFiled: August 21, 2008Date of Patent: January 31, 2012Assignee: Yonex Kabushiki KaishaInventor: Kensuke Tanaka
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Publication number: 20100331126Abstract: A tennis racket includes a frame that includes a shaft and a looped frame portion, the shaft having a grip formed on one end side thereof, the frame portion being joined to the other end side of the shaft and forming a hitting face with a string being strung across and a plurality of insertion holes that provide communication between an inner peripheral side surface and an outer peripheral side surface of the frame portion and through which the string is inserted. Shock absorbing portions and hard portions are provided in an alternating fashion on at least a part of the outer peripheral side surface of the frame portion. Each shock absorbing portion is formed between insertion holes that are adjacent to each other. Each hard portion is formed between insertion holes that are adjacent to each other and is less elastically deformable than the shock absorbing portion.Type: ApplicationFiled: June 29, 2010Publication date: December 30, 2010Applicant: YONEX KABUSHIKI KAISHAInventors: Masatoshi Iizawa, Tadashi Saito, Naoto Ogawa
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Publication number: 20100311526Abstract: A shuttlecock including a cap and a skirt part whereto an air passage hole is formed, wherein a rib is provided to the skirt part, adjacent to a rear end of the air passage hole in a generatrix direction of the skirt part, the rib having a shape wherein air pressure difference is generated between an air flow passing through the air passage hole to flow on an inside of the rib and an air flow not passing through the air passage hole but to flow on an outside of the rib, and an aerodynamic force directed from the inside of the rib to the outside is generated.Type: ApplicationFiled: August 21, 2008Publication date: December 9, 2010Applicant: YONEX KABUSHIKI KAISHAInventor: Kensuke Tanaka