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).

  • Publication number: 20200094453
    Abstract: 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: Application
    Filed: January 24, 2018
    Publication date: March 26, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshiyuki TAKAHASHI, Taisuke YONEZAWA, Yukiko TSUGAWA
  • Patent number: 10561246
    Abstract: 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: Grant
    Filed: April 19, 2016
    Date of Patent: February 18, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Kenji Kumagai, Yoshiyuki Takahashi, Toshimitsu Shinohara, Taisuke Yonezawa
  • Publication number: 20200047649
    Abstract: 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: Application
    Filed: January 25, 2018
    Publication date: February 13, 2020
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshiyuki TAKAHASHI, Taisuke YONEZAWA, Yukiko TSUGAWA
  • Patent number: 10549666
    Abstract: 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: Grant
    Filed: November 10, 2016
    Date of Patent: February 4, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yoshiyuki Takahashi, Taisuke Yonezawa
  • Patent number: 10532678
    Abstract: 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: Grant
    Filed: April 22, 2016
    Date of Patent: January 14, 2020
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Kenji Kumagai, Yoshiyuki Takahashi, Toshimitsu Shinohara, Taisuke Yonezawa
  • Publication number: 20190343296
    Abstract: 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: Application
    Filed: November 22, 2017
    Publication date: November 14, 2019
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yukiko TSUGAWA, Taisuke YONEZAWA, Yoshiyuki TAKAHASHI
  • Patent number: 10391686
    Abstract: 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: Grant
    Filed: February 6, 2013
    Date of Patent: August 27, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Hiroyuki Kuroki, Teruo Iwai, Taisuke Yonezawa
  • Patent number: 10173566
    Abstract: 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: Grant
    Filed: January 13, 2016
    Date of Patent: January 8, 2019
    Assignee: BRIDGESTONE CORPORATION
    Inventor: Taisuke Yonezawa
  • Publication number: 20180312089
    Abstract: 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: Application
    Filed: November 10, 2016
    Publication date: November 1, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Yoshiyuki TAKAHASHI, Taisuke YONEZAWA
  • Patent number: 10099409
    Abstract: 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: Grant
    Filed: February 6, 2013
    Date of Patent: October 16, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Hiroyuki Kuroki, Teruo Iwai, Taisuke Yonezawa
  • Publication number: 20180257526
    Abstract: 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: Application
    Filed: April 22, 2016
    Publication date: September 13, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
  • Patent number: 10046488
    Abstract: 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: Grant
    Filed: August 2, 2016
    Date of Patent: August 14, 2018
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Taichi Itabashi, Taisuke Yonezawa
  • Publication number: 20180146787
    Abstract: 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: Application
    Filed: April 19, 2016
    Publication date: May 31, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
  • Publication number: 20180146788
    Abstract: 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: Application
    Filed: April 27, 2016
    Publication date: May 31, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
  • Publication number: 20180132620
    Abstract: 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: Application
    Filed: April 19, 2016
    Publication date: May 17, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kenji KUMAGAI, Yoshiyuki TAKAHASHI, Toshimitsu SHINOHARA, Taisuke YONEZAWA
  • Publication number: 20180111292
    Abstract: 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: Application
    Filed: April 22, 2016
    Publication date: April 26, 2018
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Kenji KUMAGAI, Taisuke YONEZAWA, Toshimitsu SHINOHARA, Yoshiyuki TAKAHASHI
  • Publication number: 20170327020
    Abstract: 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: Application
    Filed: January 13, 2016
    Publication date: November 16, 2017
    Applicant: BRIDGESTONE CORPORATION
    Inventor: Taisuke YONEZAWA
  • Patent number: 9808968
    Abstract: 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: Grant
    Filed: June 7, 2012
    Date of Patent: November 7, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Taisuke Yonezawa, Yoshinori Ohashi
  • Patent number: 9738192
    Abstract: 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: Grant
    Filed: August 19, 2013
    Date of Patent: August 22, 2017
    Assignee: BRIDGESTONE CORPORATION
    Inventors: Yutaka Hirata, Masanori Okumura, Taisuke Yonezawa
  • Publication number: 20160339613
    Abstract: 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: Application
    Filed: August 2, 2016
    Publication date: November 24, 2016
    Applicant: BRIDGESTONE CORPORATION
    Inventors: Taichi ITABASHI, Taisuke YONEZAWA