Patents by Inventor Taisuke Yonezawa
Taisuke Yonezawa 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: 20200094453Abstract: According to the present invention, a side part cavity (23) in which a side part is molded, a body part cavity (24) in which a body part is molded, and an attachment part cavity (25) in which an attachment part is molded are formed between a plurality of molding molds (21, 22), and a guiding part (26) that is configured to guide a foam to the body part cavity when an undiluted foam solution of the second synthetic resin material supplied to the side part cavity foams is arranged at a part of the side part cavity adjacent to, in a left-right direction X, a rear end part of the body part cavity in which a non-contact part is molded.Type: ApplicationFiled: January 24, 2018Publication date: March 26, 2020Applicant: BRIDGESTONE CORPORATIONInventors: Yoshiyuki TAKAHASHI, Taisuke YONEZAWA, Yukiko TSUGAWA
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Patent number: 10561246Abstract: Provided is a seat pad (10) having a placing surface (11), wherein a lateral slit section (15) extending from an outer side toward an inner side of the seat pad (10) is formed in a first lateral direction (B1) along the placing surface (11), and at least a portion of the lateral slit section (15) gradually becomes smaller in a thickness direction (H) perpendicular to the placing surface (11) from the outer side toward the inner side of the seat pad (10) in the first lateral direction (B1).Type: GrantFiled: April 19, 2016Date of Patent: February 18, 2020Assignee: BRIDGESTONE CORPORATIONInventors: Kenji Kumagai, Yoshiyuki Takahashi, Toshimitsu Shinohara, Taisuke Yonezawa
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Publication number: 20200047649Abstract: According to the present invention, in a plan view of a seat surface (10a), a plane area of a part surrounded by an inner edge (17a) of a rear part (17) in a left-right direction (X) and a contour (L) is larger than a plane area of a part sandwiched by an inner edge (18a) of a front part (18) in the left-right direction (X) and the contour (L) in the left-right direction (X). In addition, a part of a pair of left and right second synthetic resin materials forming a lower part having a maximum gap therebetween in the left-right direction (X) is positioned in a thigh rest part (14) and a part having a minimum gap is positioned in a hip rest part (15), and a maximum value (W1) of the gap between the pair of left and right second synthetic resin materials forming the lower part in the left-right direction (X) is two times or more a minimum value (W2) of the gap in the left-right direction (X).Type: ApplicationFiled: January 25, 2018Publication date: February 13, 2020Applicant: BRIDGESTONE CORPORATIONInventors: Yoshiyuki TAKAHASHI, Taisuke YONEZAWA, Yukiko TSUGAWA
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Patent number: 10549666Abstract: A flexible polyurethane foam molded article includes a plurality of layer parts (L1 to L10) that are layered in a vertical direction (Y) perpendicular to a stage surface (1A). When the entire flexible polyurethane foam molded article is compressed by 15% in the vertical direction (Y), the front surface layer (L1) positioned closest to the stage surface (1A) in the vertical direction (Y) among the plurality of layer parts (L1 to L10) has the lowest residual thickness ratio in the vertical direction (Y) among the plurality of layer parts (L1 to L10). When the entire flexible polyurethane foam molded article is compressed by 50% in the vertical direction (Y), the back surface layer (L10) positioned closest to a non-stage surface (1B) of the flexible polyurethane foam molded article in the vertical direction (Y) among the plurality of layer parts (L1 to L10) has the highest residual thickness ratio in the vertical direction (Y) among the plurality of layer parts (L1 to L10).Type: GrantFiled: November 10, 2016Date of Patent: February 4, 2020Assignee: BRIDGESTONE CORPORATIONInventors: Yoshiyuki Takahashi, Taisuke Yonezawa
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Patent number: 10532678Abstract: A seat pad (10) having a loading surface (11). In the seat pad (10), a lateral slit portion (15), extending from the outside towards the inside of the seat pad (10) in a first lateral direction (B1) that is parallel to the loading surface (11), is formed. A longitudinal slit portion (15) is provided at an end portion of the lateral slit portion (15), in a second lateral direction (B2) that is orthogonal to the first lateral direction (B1) and that is parallel to the loading surface (11). The longitudinal slit portion (21) extends from the lateral slit portion (15) towards the loading surface (11) in a thickness direction (H) that is orthogonal to the loading surface (11).Type: GrantFiled: April 22, 2016Date of Patent: January 14, 2020Assignee: BRIDGESTONE CORPORATIONInventors: Kenji Kumagai, Yoshiyuki Takahashi, Toshimitsu Shinohara, Taisuke Yonezawa
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Publication number: 20190343296Abstract: A seat pad 10 comprises a cushion pad 11 as a seat portion to be sat on, wherein a high ventilation member 12 higher in ventilation property than a cushion pad member forming the cushion pad 11 is embedded in a part of the cushion pad 11 except a under-hip portion located under hips when sitting, in a state of being exposed only to a rear side of the cushion pad.Type: ApplicationFiled: November 22, 2017Publication date: November 14, 2019Applicant: BRIDGESTONE CORPORATIONInventors: Yukiko TSUGAWA, Taisuke YONEZAWA, Yoshiyuki TAKAHASHI
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Patent number: 10391686Abstract: A mold that: makes it possible to manufacture a molded foam body wherein a reinforcing member extends to a portion of the outer face of the molded body main body that corresponds to a parting line in the inner face of the cavity of the mold; and prevents molding problems stemming from the reinforcing member getting into the aforementioned parting line. Also: a method for manufacturing a molded foam body using the aforementioned mold; and a molded foam body manufactured thereby. The aforementioned mold (1) is provided with a seal member (7) that seals the space between mating faces (2a, 3a) of mold parts (2, 3) when the mold is fastened, and said seal member (7) is designed so as to be able to seal the space between the mating faces (2a, 3a) even if the reinforcing member (22) gets in between the mating faces (2a, 3a) on the cavity (4) side of the seal member (7).Type: GrantFiled: February 6, 2013Date of Patent: August 27, 2019Assignee: BRIDGESTONE CORPORATIONInventors: Hiroyuki Kuroki, Teruo Iwai, Taisuke Yonezawa
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Patent number: 10173566Abstract: A seat pad (10) is formed from a foamed molded body. A passenger contact surface (11) which, in a plan view of the seat pad (10), is formed in the shape of a rectangle that is long in the lengthwise direction (X) and short in the widthwise direction (Y), is provided. The passenger contact surface (10) comprises a main pressure-receiving area (11a) with which the buttocks or the waist of a passenger come into contact, and a subsidiary pressure-receiving area (11b) that is adjacent to the main pressure-receiving area (11a) in the lengthwise direction (X). The passenger contact surface (11) is provided with partitioning grooves (15) that extend in the lengthwise direction (X) and that are arranged across the main pressure-receiving area (11a) and the subsidiary pressure-receiving area (11b). The partitioning grooves (15) are arranged so as to lie parallel to each other in the widthwise direction (Y). Additional grooves (16) are formed on the bottom surfaces of the partitioning grooves (15).Type: GrantFiled: January 13, 2016Date of Patent: January 8, 2019Assignee: BRIDGESTONE CORPORATIONInventor: Taisuke Yonezawa
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Publication number: 20180312089Abstract: A flexible polyurethane foam molded article includes a plurality of layer parts (L1 to L10) that are layered in a vertical direction (Y) perpendicular to a stage surface (1A). When the entire flexible polyurethane foam molded article is compressed by 15% in the vertical direction (Y), the front surface layer (L1) positioned closest to the stage surface (1A) in the vertical direction (Y) among the plurality of layer parts (L1 to L10) has the lowest residual thickness ratio in the vertical direction (Y) among the plurality of layer parts (L1 to L10). When the entire flexible polyurethane foam molded article is compressed by 50% in the vertical direction (Y), the back surface layer (L10) positioned closest to a non-stage surface (1B) of the flexible polyurethane foam molded article in the vertical direction (Y) among the plurality of layer parts (L1 to L10) has the highest residual thickness ratio in the vertical direction (Y) among the plurality of layer parts (L1 to L10).Type: ApplicationFiled: November 10, 2016Publication date: November 1, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Yoshiyuki TAKAHASHI, Taisuke YONEZAWA
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Patent number: 10099409Abstract: A mold that: makes it possible to manufacture a molded foam body wherein a reinforcing member extends to a portion of an outer face of the molded body main body that corresponds to a parting line in the inner face of the cavity of the mold; and prevents molding problems stemming from the reinforcing member getting into the aforementioned parting line. Also: a method for manufacturing a molded foam body using the aforementioned mold; and a molded foam body manufactured thereby. A recessed step portion (6) that faces the cavity (4) of the aforementioned mold (1) is provided in the mating face (3a) of at least one part (3) of said mold (1), at at least a portion of the parting line (P) (formed in the inner face of the cavity (4)) adjacent to which the reinforcing member (22) is disposed.Type: GrantFiled: February 6, 2013Date of Patent: October 16, 2018Assignee: BRIDGESTONE CORPORATIONInventors: Hiroyuki Kuroki, Teruo Iwai, Taisuke Yonezawa
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Publication number: 20180257526Abstract: A seat pad (10) having a loading surface (11). In the seat pad (10), a lateral slit portion (15), extending from the outside towards the inside of the seat pad (10) in a first lateral direction (B1) that is parallel to the loading surface (11), is formed. A longitudinal slit portion (15) is provided at an end portion of the lateral slit portion (15), in a second lateral direction (B2) that is orthogonal to the first lateral direction (B1) and that is parallel to the loading surface (11). The longitudinal slit portion (21) extends from the lateral slit portion (15) towards the loading surface (11) in a thickness direction (H) that is orthogonal to the loading surface (11).Type: ApplicationFiled: April 22, 2016Publication date: September 13, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
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Patent number: 10046488Abstract: The present invention is an apparatus for manufacturing a foam molded product in which a foam molded product (1A, 1B) is formed by integrally adhering together a foam body (2) that is formed by the foaming of a foaming raw material, and an air-permeable component (3). A cavity (23) is provided between a plurality of mold components (21, 22, 31) and is defined by respective cavity surfaces (21a, 22a, 31a) of the mold components (21, 22, 31).Type: GrantFiled: August 2, 2016Date of Patent: August 14, 2018Assignee: BRIDGESTONE CORPORATIONInventors: Taichi Itabashi, Taisuke Yonezawa
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Publication number: 20180146787Abstract: A seat pad (10) of the present invention includes a placement surface (11). A lateral slit portion (15) which extends from an outer side of the seat pad (10) toward an inner side thereof is formed in a first lateral direction (B1) along the placement surface (11), and at least a portion of the lateral slit portion (15) gradually becomes larger from the outer side of the seat pad (10) toward the inner side thereof in a thickness direction (H) orthogonal to the placement surface (11) along the first lateral direction (B1).Type: ApplicationFiled: April 19, 2016Publication date: May 31, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
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Publication number: 20180146788Abstract: A seat pad (10) of the present invention includes a placement surface (11). A lateral slit portion (15) which extends from an outer side of the seat pad (10) toward an inner side thereof is formed in a first lateral direction (B1) along the placement surface (11), and the lateral slit portion (15) is curved and thereby protrudes in a thickness direction (H) orthogonal to the placement surface (11).Type: ApplicationFiled: April 27, 2016Publication date: May 31, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
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Publication number: 20180132620Abstract: Provided is a seat pad (10) having a placing surface (11), wherein a lateral slit section (15) extending from an outer side toward an inner side of the seat pad (10) is formed in a first lateral direction (B1) along the placing surface (11), and at least a portion of the lateral slit section (15) gradually becomes smaller in a thickness direction (H) perpendicular to the placing surface (11) from the outer side toward the inner side of the seat pad (10) in the first lateral direction (B1).Type: ApplicationFiled: April 19, 2016Publication date: May 17, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
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Publication number: 20180111292Abstract: A foam molded body production device (20) including a plurality of molds (21); a cavity (23) that is delimited, between the plurality of molds (21), by cavity surfaces (22) of the plurality of molds (21); and a protrusion portion (28) that is formed on the cavity surfaces (22). The protrusion portion (28) is formed from an elastic body. The cavity surfaces (22) are provided with a holding portion (29) that contacts a tip of the protrusion portion (28) when the plurality of molds (21) are closed, and causes the protrusion portion (28) to elastically deform inside the cavity (23).Type: ApplicationFiled: April 22, 2016Publication date: April 26, 2018Applicant: BRIDGESTONE CORPORATIONInventors: Kenji KUMAGAI, Taisuke YONEZAWA, Toshimitsu SHINOHARA, Yoshiyuki TAKAHASHI
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Publication number: 20170327020Abstract: A seat pad (10) is formed from a foamed molded body. A passenger contact surface (11) which, in a plan view of the seat pad (10), is formed in the shape of a rectangle that is long in the lengthwise direction (X) and short in the widthwise direction (Y), is provided. The passenger contact surface (10) comprises a main pressure-receiving area (11a) with which the buttocks or the waist of a passenger come into contact, and a subsidiary pressure-receiving area (11b) that is adjacent to the main pressure-receiving area (11a) in the lengthwise direction (X). The passenger contact surface (11) is provided with partitioning grooves (15) that extend in the lengthwise direction (X) and that are arranged across the main pressure-receiving area (11a) and the subsidiary pressure-receiving area (11b). The partitioning grooves (15) are arranged so as to lie parallel to each other in the widthwise direction (Y). Additional grooves (16) are formed on the bottom surfaces of the partitioning grooves (15).Type: ApplicationFiled: January 13, 2016Publication date: November 16, 2017Applicant: BRIDGESTONE CORPORATIONInventor: Taisuke YONEZAWA
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Patent number: 9808968Abstract: A mold, a molding machine, and a foamed molded body manufacturing method are provided that are capable of more reliably preventing ingress of foamed resin into a gas discharge hole using a gas-impermeable member and capable of adequately discharging gas inside the cavity to the cavity outside through the gas discharge hole during foam molding, and that are also capable of achieving good design characteristics in a foamed molded body. A gas discharge hole 5 is provided at a cavity 4 inner face of a mold 1 and discharges gas inside the cavity 4 to outside the cavity 4. A gas-permeable member 6 is disposed inside the cavity 4 of the mold 1 so as to cover the gas discharge hole 5, and a gas-impermeable member 8 is disposed on the gas discharge hole 5 side of the gas-permeable member 6 so as to face the gas discharge hole 5.Type: GrantFiled: June 7, 2012Date of Patent: November 7, 2017Assignee: BRIDGESTONE CORPORATIONInventors: Taisuke Yonezawa, Yoshinori Ohashi
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Patent number: 9738192Abstract: Ridge portions 9 are provided to be continuously present in orthogonally intersecting directions by forming plural recessed holes 8 in the upper surface of an under-thighs portion 2 and an under-buttocks portion 3 of a seat pad 1 for a vehicle. The height of each ridge portion 9, i.e. the depth h of each recessed hole 8, is preferably in the range of 2 to 40 mm, more preferably in the range of 5 to 20 mm, the width w of each recessed hole 8 is preferably in the range of 10 to 30 mm, more preferably in the range of 20 to 30 mm, and the area of an opening of each recessed hole 8 is preferably in the range of 50 to 1000 mm2, more preferably in the range of 100 to 900 mm2. Accordingly, the present invention can provide a seat pad, which is excellent in soft sensation of touch of a surface thereof, satisfactory in the properties of supporting an occupant, and can be produced by integral foam molding.Type: GrantFiled: August 19, 2013Date of Patent: August 22, 2017Assignee: BRIDGESTONE CORPORATIONInventors: Yutaka Hirata, Masanori Okumura, Taisuke Yonezawa
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Publication number: 20160339613Abstract: The present invention is an apparatus for manufacturing a foam molded product in which a foam molded product (1A, 1B) is formed by integrally adhering together a foam body (2) that is formed by the foaming of a foaming raw material, and an air-permeable component (3). A cavity (23) is provided between a plurality of mold components (21, 22, 31) and is defined by respective cavity surfaces (21a, 22a, 31a) of the mold components (21, 22, 31).Type: ApplicationFiled: August 2, 2016Publication date: November 24, 2016Applicant: BRIDGESTONE CORPORATIONInventors: Taichi ITABASHI, Taisuke YONEZAWA