Patents by Inventor Hiroyuki Fudemoto
Hiroyuki Fudemoto 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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Patent number: 11738605Abstract: The bead portion of a pneumatic tire has a bead structure including a bead core having a bead cord covered with a resin material, and a bead filler continuous to the bead core and formed of the resin material and tapered outside in the tire radial direction. The bead structure has a weld line of the resin material. The weld line is formed inside in the tire radial direction more than ? of the total height along the tire radial direction of the bead structure.Type: GrantFiled: October 25, 2019Date of Patent: August 29, 2023Assignee: BRIDGESTONE CORPORATIONInventors: Takumi Yamada, Hiroyuki Fudemoto
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Publication number: 20210402830Abstract: A tire (1) includes a bead member (50) having a bead core (60) and a bead filler located at an outer side of the bead core in the tire radial direction, in which the bead filler (70) is formed of a resin composition, which includes a thermoplastic resin and a thermoplastic elastomer, of which a Tan ? curve obtained by viscoelasticity measurement has at least two peaks, or at least one peak having one or more shoulders, and which has a tensile elastic modulus of from 400 to 1100 MPa.Type: ApplicationFiled: November 8, 2019Publication date: December 30, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Takumi YAMADA, Hiroyuki FUDEMOTO
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Publication number: 20210387483Abstract: The bead portion of a pneumatic tire has a bead structure including a bead core having a bead cord covered with a resin material, and a bead filler continuous to the bead core and formed of the resin material and tapered outside in the tire radial direction. The bead structure has a weld line of the resin material. The weld line is formed inside in the tire radial direction more than ? of the total height along the tire radial direction of the bead structure.Type: ApplicationFiled: October 25, 2019Publication date: December 16, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Takumi YAMADA, Hiroyuki FUDEMOTO
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Publication number: 20210387482Abstract: The bead portion (60) of the pneumatic tire (10) includes a bead structure (61) having a bead core (62) in which a bead cord (62a) formed of a metal material is covered with a resin material, and a film-like member (64) covering the periphery of the bead structure (61). The film-like member (64) is formed of a material having a lower moisture permeability than the resin material.Type: ApplicationFiled: October 25, 2019Publication date: December 16, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Takumi YAMADA, Hiroyuki FUDEMOTO
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Patent number: 11135875Abstract: A resin-metal composite member for a tire, the member including: a metal member; an adhesive layer; and a covering resin layer in this order, wherein: the adhesive layer includes a continuous phase containing a polyester-based thermoplastic elastomer having a polar functional group, and a discontinuous phase containing a styrene-based elastomer, and a ratio of the continuous phase with respect to an entirety of the adhesive layer is from 60% by mass to 93% by mass.Type: GrantFiled: December 13, 2019Date of Patent: October 5, 2021Assignee: BRIDGESTONE CORPORATIONInventors: Yukinori Nakakita, Hiroyuki Fudemoto
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Patent number: 11104105Abstract: A tire having a layered structure includes: a resin member comprising at least one resin selected from the group consisting of a polyamide resin, a polyamide thermoplastic elastomer, a polyester resin, and a polyester thermoplastic elastomer; a resin adhesive layer disposed on the resin member; a rubber adhesive layer that is adhered to a side of the resin adhesive layer and that has a thickness of from 5 ?m to 300 ?m; and a rubber member disposed on a side of the rubber adhesive layer, wherein the tire is vulcanized, and wherein each of a hardness of the resin member (Ha), a hardness of the resin adhesive layer (Hb), a hardness of the rubber adhesive layer (Hc), and a hardness of the rubber member (Hd) is from 100 MPa to 600 MPa.Type: GrantFiled: October 10, 2019Date of Patent: August 31, 2021Assignee: BRIDGESTONE CORPORATIONInventors: Atsushi Fukushima, Emil Giza, Hiroyuki Fudemoto
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Publication number: 20210214576Abstract: A resin-metal composite member for a tire comprises a metal member (27) and a coating resin layer (28) that covers the metal member (27) and contains a resin composition. The resin composition includes a thermoplastic elastomer, at least one additive resin selected from an amorphous resin having an ester bond or a polyester-based thermoplastic resin, and at least one chemical selected from a carbodiimide compound, a polyfunctional epoxy compound, or a polyfunctional amino compound.Type: ApplicationFiled: May 29, 2019Publication date: July 15, 2021Applicant: BRIDGESTONE CORPORATIONInventors: Hiroyuki ANZAI, Takumi YAMADA, Hiroyuki FUDEMOTO
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Publication number: 20210206205Abstract: Provided is a pneumatic tire comprising a carcass straddling between bead portions and extending toroidally, a belt including a cord, and a coating material made of a resin or a rubber and with which the cord is coated, the belt being disposed at a position outside a crown portion of the carcass in a tire radial direction, and a resin layer disposed between the carcass and the belt or at a position outside the belt in the tire radial direction, the resin layer being in contact with the coating material of the belt, and an outer end of the resin layer in a tire width direction is located, in the tire width direction, at the same position as in an outer end of the belt in the tire width direction, or located, in the tire width direction, outside the outer end of the belt in the tire width direction.Type: ApplicationFiled: May 29, 2019Publication date: July 8, 2021Applicant: BRIDGESTONE CORPORATIONInventor: Hiroyuki FUDEMOTO
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Publication number: 20210102048Abstract: A resin-rubber composite includes: a resin member that has a treated surface, to which a surface treatment by means of a plasma treatment has been applied; and a rubber member that is disposed in contact with the treated surface of the resin member and includes a rubber, a filler having a silanol group, and a silane coupling agent, with a filler content of from 30 phr to 100 phr with respect to 100 phr of the rubber, and a silane coupling agent content of from 2 parts by mass to 15 parts by mass with respect to 100 parts by mass of the filler.Type: ApplicationFiled: April 26, 2019Publication date: April 8, 2021Applicants: BRIDGESTONE CORPORATION, OSAKA UNIVERSITYInventors: Hiroyuki FUDEMOTO, Atsushi FUKUSHIMA, Masahiro HOMMA, Yuji OHKUBO, Kazuya YAMAMURA
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Patent number: 10946698Abstract: A tire including a circular tire frame containing a resin composition, the resin composition containing a polypropylene having a melting temperature of 160° C. or higher, an ethylene-propylene rubber, and a styrene-containing elastomer, in which a content of the polypropylene having a melting temperature of 160° C. or higher being 60% by mass or less with respect to the resin composition as a whole, and a content of a styrene component being 5% by mass or more with respect to the resin composition as a whole.Type: GrantFiled: September 23, 2016Date of Patent: March 16, 2021Assignee: BRIDGESTONE CORPORATIONInventors: Hiroyuki Fudemoto, Atsuko Takahashi
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Publication number: 20200346491Abstract: A metal resin composite member for a tire, comprising a metal cord and a resin layer, the resin layer being formed of a resin mixture that includes a thermoplastic resin A, which has a hard segment and a soft segment, and a thermoplastic resin B, which is formed of the same structural units as the hard segment of thermoplastic A, and a ratio of the hard segment in the resin mixture being from 60% by mass to less than 75% by mass,Type: ApplicationFiled: October 17, 2018Publication date: November 5, 2020Applicant: BRIDGESTONE CORPORATIONInventors: Hiroyuki ANZAI, Takahiro SUZUKI, Yukinori NAKAKITA, Takumi YAMADA, Hiroyuki FUDEMOTO
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Patent number: 10821778Abstract: A tire including a circular tire frame formed of a resin material, and a metal reinforcing cord member wound on the outer circumference of the tire frame, wherein at least a portion of the metal reinforcing cord member is covered by a covering mixture including at least an olefin-based thermoplastic resin and a thermoplastic resin other than the olefin-based thermoplastic resin.Type: GrantFiled: February 28, 2013Date of Patent: November 3, 2020Assignee: BRIDGESTONE CORPORATIONInventors: Takashi Harada, Hiroyuki Fudemoto, Kunio Machida
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Publication number: 20200262253Abstract: A bead member for a tire, including: a bead wire; a first bead filler that is in contact with the bead wire directly or via another layer and is arranged in a region including at least a region at an outer side of the bead wire in a tire radial direction; and a second bead filler that is in contact with the first bead filler directly or via another layer and is arranged in a region including at least a region at an outer side of the first bead filler in the tire radial direction, the first bead filler including a resin A, the second bead filler including a resin B, and the resin B having a melting point higher than that of the resin A.Type: ApplicationFiled: April 2, 2020Publication date: August 20, 2020Applicant: BRIDGESTONE CORPORATIONInventors: Hiroyuki FUDEMOTO, Takumi YAMADA, Yukinori NAKAKITA, Takahiro SUZUKI
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Publication number: 20200238649Abstract: A bead member for a tire, including: a bead wire; a first bead filler that is in contact with the bead wire directly or via another layer and is arranged in a region including at least a region at an outer side of the bead wire in a tire radial direction; and a second bead filler that is in contact with the first bead filler directly or via another layer and is arranged in a region including at least a region at an outer side of the first bead filler in the tire radial direction, the first bead filler including a resin A, the second bead filler including a resin B, and the resin A having a melting point higher than that of the resin B.Type: ApplicationFiled: April 2, 2020Publication date: July 30, 2020Applicant: BRIDGESTONE CORPORATIONInventors: Hiroyuki FUDEMOTO, Takumi YAMADA, Yukinori NAKAKITA, Takahiro SUZUKI
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Publication number: 20200115601Abstract: A resin-metal composite member for a tire, the member including: a metal member; an adhesive layer; and a covering resin layer in this order, wherein: the adhesive layer includes a continuous phase that contains a polyester-based thermoplastic elastomer having a polar functional group, and a discontinuous phase that contains at least one of a polyphenylene ether resin or a styrene resin and contains a styrene-based elastomer having an epoxy group.Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Inventors: Yukinori NAKAKITA, Hiroyuki FUDEMOTO
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Publication number: 20200114688Abstract: A tire including an annular tire frame composed of a plurality of kinds of resin materials, wherein an Asker D hardness Hi of a side portion of the tire frame, which side portion is to be located on an inner side in a vehicle width direction when the tire is mounted on a vehicle, is 0.84 times or more but less than 1.00 times an Asker D hardness Ho of a side portion of the tire frame, which side portion is to be located on an outer side in the vehicle width direction when the tire is mounted on the vehicle.Type: ApplicationFiled: December 11, 2019Publication date: April 16, 2020Inventors: Soichi KYO, Hiroyuki FUDEMOTO
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Publication number: 20200115515Abstract: A resin-metal composite member for a tire, the member including a metal member (27), an adhesion layer (25), and a covering resin layer (28) in the listed order, in which the adhesion layer (25) includes a polyester-based thermoplastic elastomer having a polar functional group, and the covering resin layer (28) includes a polyester-based thermoplastic elastomer.Type: ApplicationFiled: December 12, 2019Publication date: April 16, 2020Inventors: Yukinori NAKAKITA, Hiroyuki FUDEMOTO, Takahiro SUZUKI
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Publication number: 20200115599Abstract: A resin-metal composite member for a tire includes a metal member (27), an adhesion layer (25), and a covering resin layer (28) in this order. The adhesion layer (25) includes a polyester-based thermoplastic elastomer having a polar functional group, and at least one additive selected from the group consisting of an amorphous resin including an ester bond, a polyester-based thermoplastic resin, and a filler, and the content ratio of the polyester-based thermoplastic elastomer having a polar functional group is 50% by mass or more with respect to the entire adhesion layer (25).Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Inventors: Yukinori NAKAKITA, Hiroyuki FUDEMOTO
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Publication number: 20200114686Abstract: A resin-metal composite member for a tire, the member including: a metal member; an adhesive layer; and a covering resin layer in this order, wherein: the adhesive layer includes a continuous phase containing a polyester-based thermoplastic elastomer having a polar functional group, and a discontinuous phase containing a styrene-based elastomer, and a ratio of the continuous phase with respect to an entirety of the adhesive layer is from 60% by mass to 93% by mass.Type: ApplicationFiled: December 13, 2019Publication date: April 16, 2020Inventors: Yukinori NAKAKITA, Hiroyuki FUDEMOTO
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Publication number: 20200114689Abstract: A tire including an annular tire frame composed of a plurality of resin materials, wherein an Asker D hardness Ho of a side portion of the tire frame, which side portion is to be located on an outer side in a vehicle width direction when the tire is mounted on a vehicle, is lower than an Asker D hardness Hi of a side portion of the tire frame, which side portion is to be located on an inner side in the vehicle width direction when the tire is mounted on the vehicle, and wherein a resin contained as a main component in a resin material constituting the side portion of the tire frame, which side portion is to be located on the inner side in the vehicle width direction when the tire is mounted on the vehicle, has a melting point of 140° C. or higher, or does not have a melting point and has a glass transition point of 40° C. or higher.Type: ApplicationFiled: December 11, 2019Publication date: April 16, 2020Inventors: Soichi KYO, Hiroyuki FUDEMOTO