公开(公告)号：US20180111292A1

公开(公告)日：2018-04-26

申请号：US15571167

申请日：2016-04-22

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Taisuke YONEZAWA ,  Toshimitsu SHINOHARA ,  Yoshiyuki TAKAHASHI

IPC: B29C33/50 ,  B29C39/04 ,  B29C39/34 ,  B60N2/90 ,  A47C7/02 ,  B29C44/02

CPC classification number: B29C33/50 ,  A47C7/02 ,  B29C39/02 ,  B29C39/04 ,  B29C39/26 ,  B29C39/34 ,  B29C41/38 ,  B29C44/02 ,  B29C44/0461 ,  B29C44/582 ,  B29K2075/00 ,  B29K2823/12 ,  B29K2867/003 ,  B29L2031/58 ,  B60N2/90

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).

公开(公告)号：US20200079259A1

公开(公告)日：2020-03-12

申请号：US16468904

申请日：2017-12-18

Applicant: Bridgestone Corporation

Inventor： Toshimitsu SHINOHARA ,  Kenji KUMAGAI

IPC: B60N2/64 ,  B60N2/70

Abstract: The present invention is a seat pad (1) including a backrest (12) that stands up from a rear side of a seat (11) on which an occupant sits and supports the occupant from behind, in which the hardness of a lower part (13) of the backrest (12) in a front-rear direction X that supports at least the waist of the occupant is lower than the hardness of an upper part (14) thereof in the front-rear direction X that supports at least the shoulders of the occupant.

公开(公告)号：US20250044072A1

公开(公告)日：2025-02-06

申请号：US18718064

申请日：2022-07-12

Applicant: BRIDGESTONE CORPORATION

Inventor： Hajime KITANO ,  Yasumichi WAKAO ,  Toshimitsu SHINOHARA ,  Yoshihiko ONIKI ,  Yusuke FUJISAWA

IPC: G01B7/16 ,  G01N27/04

Abstract: An estimating device, including: a detecting section detecting electrical characteristics between a plurality of predetermined detection points at a flexible material, which is electrically conductive and which has electrical characteristics that vary in accordance with deformation, of a target object that has the flexible material; and an estimating section that inputs time-series electrical characteristics, which were detected by the detecting section, of an object of estimation to a learning model that is trained by using, as learning data, time-series electrical characteristics that vary in accordance with deformation of the flexible material, and deteriorated state information expressing a deteriorated state relating to deformation of the flexible material, such that the time-series electrical characteristics are inputs of the learning model and the learning model outputs the deteriorated state information, and the estimating section estimates deteriorated state information expressing a deteriorated state corresponding to inputted time-series electrical characteristics.

公开(公告)号：US20170121448A1

公开(公告)日：2017-05-04

申请号：US15317054

申请日：2015-06-12

Applicant: BRIDGESTONE CORPORATION

Inventor： Kosuke YOSHITOMI ,  Toshimitsu SHINOHARA

IPC: C08G18/48 ,  C08G18/76 ,  C08G18/32 ,  A47C27/14

CPC classification number: C08G18/48 ,  A47C27/14 ,  B29C44/02 ,  B29C45/0001 ,  B29K2075/00 ,  B29K2105/04 ,  C08G18/3206 ,  C08G18/4072 ,  C08G18/4816 ,  C08G18/4829 ,  C08G18/4833 ,  C08G18/4837 ,  C08G18/632 ,  C08G18/6677 ,  C08G18/7671 ,  C08G2101/0008 ,  C08G2101/0083 ,  C08G2120/00

Abstract: The present invention provides a soft polyurethane foam that is obtained by foam molding a foaming stock solution containing a polyol, a polyisocyanate, a cross-linking agent, a foaming agent, and a catalyst in which: a polyether polyol having a weight-average molecular weight (Mw) of 3,000 to 12,000 and having three to four functional groups is contained; a molar ratio of ethylene oxide groups/propylene oxide groups in all the compound contained as the cross-linking agent is 100 or more; and diphenylmethane diisocyanate is contained in an isocyanate index of 70 or more.

公开(公告)号：US20240262261A1

公开(公告)日：2024-08-08

申请号：US18569235

申请日：2022-07-12

Applicant: BRIDGESTONE CORPORATION

Inventor： Hajime KITANO ,  Yasumichi WAKAO ,  Toshimitsu SHINOHARA ,  Kazushige EBE ,  Yoshihiko ONIKI

IPC: B60N2/02 ,  A61B5/00 ,  A61B5/11 ,  B60N2/90

CPC classification number: B60N2/026 ,  A61B5/1116 ,  A61B5/6893 ,  B60N2/0273 ,  B60N2/0277 ,  B60N2/0296 ,  B60N2/90 ,  A61B2503/12

Abstract: An inference device detects, with a detection section, an electrical characteristic between plural predetermined detection points on a vehicle seat provided with a soft material that is conductive and that exhibits a change in an electrical characteristic according to a change in pressure imparted. An inference section employs a learning model to infer a posture state of an occupant of the vehicle seat from the electrical characteristic of the vehicle seat. The electrical characteristic when pressure has been imparted to the vehicle seat and the posture state information indicating the posture state of the occupant when imparting pressure to the vehicle seat are employed as training data for a learning model trained so as to be input with the electrical characteristic and output the posture state information, and trained so as to be input with the electrical characteristic and output the posture state of the occupant corresponding to the input electrical characteristic.

公开(公告)号：US20180257526A1

公开(公告)日：2018-09-13

申请号：US15571171

申请日：2016-04-22

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Yoshiyuki TAKAHASHI ,  Toshimitsu SHINOHARA ,  Taisuke YONEZAWA

IPC: B60N2/64

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).

公开(公告)号：US20180146787A1

公开(公告)日：2018-05-31

申请号：US15576521

申请日：2016-04-19

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Yoshiyuki TAKAHASHI ,  Toshimitsu SHINOHARA ,  Taisuke YONEZAWA

IPC: A47C7/18 ,  B60N2/70

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).

公开(公告)号：US20180146788A1

公开(公告)日：2018-05-31

申请号：US15576559

申请日：2016-04-27

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Yoshiyuki TAKAHASHI ,  Toshimitsu SHINOHARA ,  Taisuke YONEZAWA

IPC: A47C7/18 ,  B60N2/70

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).

公开(公告)号：US20180132620A1

公开(公告)日：2018-05-17

申请号：US15571595

申请日：2016-04-19

Applicant: BRIDGESTONE CORPORATION

Inventor： Kenji KUMAGAI ,  Yoshiyuki TAKAHASHI ,  Toshimitsu SHINOHARA ,  Taisuke YONEZAWA

IPC: A47C7/18 ,  A47C27/14 ,  B60N2/90 ,  B68G5/02

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).

公开(公告)号：US20170121482A1

公开(公告)日：2017-05-04

申请号：US15316911

申请日：2015-06-12

Applicant: BRIDGESTONE CORPORATION

Inventor： Kosuke YOSHITOMI ,  Toshimitsu SHINOHARA

IPC: C08J9/12 ,  B29C44/34 ,  C08G18/66 ,  C08G18/32 ,  C08G18/48 ,  B29C44/02 ,  C08G18/76

CPC classification number: C08J9/125 ,  B29C44/02 ,  B29C44/3442 ,  B29C44/355 ,  B29C67/246 ,  B29K2075/00 ,  B29K2105/04 ,  B29K2995/007 ,  B29L2031/58 ,  C08G18/3206 ,  C08G18/3271 ,  C08G18/4009 ,  C08G18/4829 ,  C08G18/485 ,  C08G18/6677 ,  C08G18/6681 ,  C08G18/76 ,  C08G18/7621 ,  C08G18/7671 ,  C08G2101/0008 ,  C08G2101/0025 ,  C08G2101/0041 ,  C08G2101/0083 ,  C08J2203/10 ,  C08J2205/10 ,  C08J2375/04

Abstract: The present invention provides a soft polyurethane foam which is obtained by expansion molding a starting foam liquid that contains a polyol, a polyisocyanate, a crosslinking agent, a foaming agent and a catalyst. This soft polyurethane foam is configured such that: a polyether polyol having a weight-average molecular weight (Mw) of 3,000 to 12,000 and 3.5 to 4 functional groups is contained therein as the polyol; the value of (ethylene oxide groups)/(propylene oxide groups) (in terms of a molar ratio) in all compounds contained therein as the crosslinking agent is 100 or more; a short-chain polyol having a weight-average molecular weight of 1,000 or less is contained therein as the crosslinking agent; and tolylene diisocyanate is contained therein as the polyisocyanate in an isocyanate index of 70 or more.