Patents by Inventor Kazuhisa To
Kazuhisa To 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: 11751368Abstract: The electrically conductive resin composition may contain matrix resin, coke powder, and carbon fiber. The volume mean particle diameter of the coke powder may be not less than 1 ?m and not more than 500 ?m. The content percentage of the coke powder in the electrically conductive resin composition may be not less than 1 wt % and not more than 60 wt %. The aspect ratio of the carbon fiber may be not less than 3 and not more than 1700. The content percentage of the carbon fiber in the electrically conductive resin composition may be not less than 0.5 wt % and not more than 10 wt %.Type: GrantFiled: February 24, 2021Date of Patent: September 5, 2023Assignees: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., MAZDA MOTOR CORPORATIONInventors: Toshiaki Miyanaga, Kazuhisa To, Nobuyoshi Kajioka, Junichi Ogawa, Kenji Hiramoto
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Patent number: 11685445Abstract: A vehicle roof structure is provided capable of maintaining side collision performance of a vehicle even without a roof reinforcing member. The vehicle roof structure includes an annular frame that is joined to a circumferential edge of a roof panel (which includes an outer panel and an inner panel), and supports the roof panel. The annular frame has a higher rigidity than the roof panel, is arranged in an opening of a roof, and is joined to a pair of roof side rails, a front header, and a rear header.Type: GrantFiled: February 7, 2020Date of Patent: June 27, 2023Assignee: MAZDA MOTOR CORPORATIONInventors: Tomohito Okuyama, Ryuji Nonaka, Junji Kishimoto, Toshimine Morino, Kazuhisa To, Chikara Tanaka, Shin Sasaki
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Patent number: 11606889Abstract: Provided is carbon material filler for an electromagnetic shield, which includes a graphitizable carbon material to be mixed into a molding material in order to absorb electromagnetic waves, the carbon material filler for an electromagnetic shield satisfying (1) to (3): (1) A spacing d002 of a 002 plane of the graphitizable carbon material measured through X-ray diffraction measurement (XRD) is at least 0.338 nm. (2) A relative intensity ratio (A/B) value between a peak intensity (A) of a “002 plane” detected when the graphitizable carbon material is measured through X-ray diffraction measurement (XRD) and a higher peak intensity (B) that is selected from a “100 plane” and a “004 plane” is at least 2.5 and less than 27. (3) The filler is in powder form and the average particle diameter D50 is at least 1 ?m and at most 5 mm.Type: GrantFiled: March 23, 2021Date of Patent: March 14, 2023Assignee: Mazda Motor CorporationInventors: Toshiaki Miyanaga, Kazuhisa To, Nobuyoshi Kajioka, Junichi Ogawa, Kenji Hiramoto
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Patent number: 11383459Abstract: A fiber-reinforced resin hollow body includes an axial-direction fiber layer containing reinforcing fibers aligned parallel to an axial direction of the hollow body, and a non-axial-direction fiber layer provided on top of at least one of an internal and an external side of the axial-direction fiber layer, and containing reinforcing fibers oriented in a direction different from the alignment direction of the axial-direction fiber layer. The non-axial-direction fiber layer includes one or more peripheral-direction fiber layers containing reinforcing fibers aligned parallel to a peripheral direction of the hollow body, and one or more non-aligned fiber layers containing reinforcing fibers not aligned in a specific direction.Type: GrantFiled: March 29, 2017Date of Patent: July 12, 2022Assignees: KURIMOTO, LTD., MAZDA MOTOR CORPORATIONInventors: Takeshi Kitagawa, Masaya Hazama, Toshiki Okauji, Makoto Takeda, Jun Watanabe, Takashi Tabakoya, Shin Matsumura, Yoshiyasu Kajimoto, Kazuhisa To
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Publication number: 20220169313Abstract: A vehicle roof structure is provided capable of maintaining side collision performance of a vehicle even without a roof reinforcing member. The vehicle roof structure includes an annular frame that is joined to a circumferential edge of a roof panel (which includes an outer panel and an inner panel), and supports the roof panel. The annular frame has a higher rigidity than the roof panel, is arranged in an opening of a roof, and is joined to a pair of roof side rails, a front header, and a rear header.Type: ApplicationFiled: February 7, 2020Publication date: June 2, 2022Applicant: MAZDA MOTOR CORPORATIONInventors: Tomohito OKUYAMA, Ryuji NONAKA, Junji KISHIMOTO, Toshimine MORINO, Kazuhisa TO, Chikara TANAKA, Shin SASAKI
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Patent number: 11207865Abstract: A fiber-reinforced resin hollow body includes an axial-direction fiber layer containing reinforcing fibers aligned parallel to an axial direction of the hollow body, and a non-axial-direction fiber layer provided on top of at least one of an internal and an external side of the axial-direction fiber layer, and containing reinforcing fibers oriented in a direction different from a direction in which the reinforcing fibers contained in the axial-direction fiber layer are aligned. The non-axial-direction fiber layer has end portions in a peripheral direction of the hollow body, the end portions overlapping each other.Type: GrantFiled: March 29, 2017Date of Patent: December 28, 2021Assignees: KURIMOTO, LTD., MAZDA MOTOR CORPORATIONInventors: Takeshi Kitagawa, Masaya Hazama, Toshiki Okauji, Makoto Takeda, Jun Watanabe, Takashi Tabakoya, Shin Matsumura, Yoshiyasu Kajimoto, Kazuhisa To
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Publication number: 20210307222Abstract: Provided is carbon material filler for an electromagnetic shield, which includes a graphitizable carbon material to be mixed into a molding material in order to absorb electromagnetic waves, the carbon material filler for an electromagnetic shield satisfying (1) to (3): (1) A spacing d002 of a 002 plane of the graphitizable carbon material measured through X-ray diffraction measurement (XRD) is at least 0.338 nm. (2) A relative intensity ratio (A/B) value between a peak intensity (A) of a “002 plane” detected when the graphitizable carbon material is measured through X-ray diffraction measurement (XRD) and a higher peak intensity (B) that is selected from a “100 plane” and a “004 plane” is at least 2.5 and less than 27. (3) The filler is in powder form and the average particle diameter D50 is at least 1 ?m and at most 5 mm.Type: ApplicationFiled: March 23, 2021Publication date: September 30, 2021Applicants: NIPPON STEEL CHEMICAL & MATERIAL CO., LTD., Mazda Motor CorporationInventors: Toshiaki Miyanaga, Kazuhisa To, Nobuyoshi Kajioka, Junichi Ogawa, Kenji Hiramoto
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Publication number: 20210307217Abstract: The electrically conductive resin composition may contain matrix resin, coke powder, and carbon fiber. The volume mean particle diameter of the coke powder may be not less than 1 ?m and not more than 500 ?m. The content percentage of the coke powder in the electrically conductive resin composition may be not less than 1 wt % and not more than 60 wt %. The aspect ratio of the carbon fiber may be not less than 3 and not more than 1700. The content percentage of the carbon fiber in the electrically conductive resin composition may be not less than 0.5 wt % and not more than 10 wt %.Type: ApplicationFiled: February 24, 2021Publication date: September 30, 2021Applicants: Nippon Steel Chemical & Material Co., Ltd., Mazda Motor CorporationInventors: Toshiaki MIYANAGA, Kazuhisa TO, Nobuyoshi KAJIOKA, Junichi OGAWA, Kenji HIRAMOTO
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Publication number: 20200071863Abstract: Provided is a fiber reinforced plastic member made by a braiding technique to obtain high rigidity and superior vibration damping performance under a bending load. A reinforcing member made of carbon fiber reinforced plastic resin extends in a specific direction along an axis of the reinforcing member and includes a carbon fiber braided structure. The carbon fiber braided structure has a structure in which a plurality of axial yarns, a plurality of first braid yarns, and a plurality of second braid yarns are braided. A plurality of first braid yarns are wound to intersect the axis at a first braid angle. A plurality of second braid yarns are wound to intersect the axis at a second braid angle. The first braid yarns and the second braid yarns intersect each other.Type: ApplicationFiled: August 9, 2019Publication date: March 5, 2020Applicants: MAZDA MOTOR CORPORATION, MIZUNO TECHNICS CORPORATIONInventors: Kohya NAKAGAWA, Kiyoshi FUJIWARA, Kazuhisa TO, Chikara TANAKA, Takahiro ATSUMI, Hiroki ASHIDA
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Publication number: 20190143612Abstract: A fiber-reinforced resin hollow body includes an axial-direction fiber layer containing reinforcing fibers aligned parallel to an axial direction of the hollow body, and a non-axial-direction fiber layer provided on top of at least one of an internal and an external side of the axial-direction fiber layer, and containing reinforcing fibers oriented in a direction different from the alignment direction of the axial-direction fiber layer. The non-axial-direction fiber layer includes one or more peripheral-direction fiber layers containing reinforcing fibers aligned parallel to a peripheral direction of the hollow body, and one or more non-aligned fiber layers containing reinforcing fibers not aligned in a specific direction.Type: ApplicationFiled: March 29, 2017Publication date: May 16, 2019Applicants: KURIMOTO, LTD., MAZDA MOTOR CORPORATIONInventors: Takeshi KITAGAWA, Masaya HAZAMA, Toshiki OKAUJI, Makoto TAKEDA, Jun WATANABE, Takashi TABAKOYA, Shin MATSUMURA, Yoshiyasu KAJIMOTO, Kazuhisa TO
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Publication number: 20190105870Abstract: A fiber-reinforced resin hollow body includes an axial-direction fiber layer containing reinforcing fibers aligned parallel to an axial direction of the hollow body, and a non-axial-direction fiber layer provided on top of at least one of an internal and an external side of the axial-direction fiber layer, and containing reinforcing fibers oriented in a direction different from a direction in which the reinforcing fibers contained in the axial-direction fiber layer are aligned. The non-axial-direction fiber layer has end portions in a peripheral direction of the hollow body, the end portions overlapping each other.Type: ApplicationFiled: March 29, 2017Publication date: April 11, 2019Applicants: KURIMOTO, LTD., MAZDA MOTOR CORPORATIONInventors: Takeshi KITAGAWA, Masaya HAZAMA, Toshiki OKAUJI, Makoto TAKEDA, Jun WATANABE, Takashi TABAKOYA, Shin MATSUMURA, Yoshiyasu KAJIMOTO, Kazuhisa TO
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Publication number: 20160082474Abstract: A structural polymer insert. The insert includes a substrate having a surface and an adhesive with the substrate being an admixture of a polypropylene component and a glass fiber component. The surface has a plurality of oxygen atoms, optionally introduced by air plasma, in an amount of 1 to 60 atomic percent of all the atoms present on the surface. The foam adhesive is attached to the surface through one or more reactive moieties resulted from oxidative action of the oxygen atoms.Type: ApplicationFiled: November 11, 2015Publication date: March 24, 2016Inventors: Matthew John ZALUZEC, Larry P. HAACK, Ann Marie STRACCIA, Kazuhisa To
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Patent number: 9217066Abstract: A structural polymer insert. The insert includes a substrate having a surface and an adhesive with the substrate being an admixture of a polypropylene component and a glass fiber component. The surface has a plurality of oxygen atoms, optionally introduced by air plasma, in an amount of 1 to 60 atomic percent of all the atoms present on the surface. The foam adhesive is attached to the surface through one or more reactive moieties resulted from oxidative action of the oxygen atoms.Type: GrantFiled: March 31, 2008Date of Patent: December 22, 2015Assignees: Ford Global Technologies, LLC, Mazda Motor CorporationInventors: Matthew John Zaluzec, Larry P. Haack, Ann Marie Straccia, Kazuhisa To
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Publication number: 20140011937Abstract: A polypropylene-based resin composition suitable for molding of especially an automobile bumper having good formability, high rigidity, excellent appearance, and high surface impact strength is provided. This composition includes: 30-62 wt. % of a propylene copolymer having an MFR of 40-70 g/10 min.; 5-20 wt. % of a propylene-based block copolymer including a crystalline polypropylene part having a high MFR and a specific ethylene-propylene copolymer part and having an MFR of 100-130 g/10 min; 10-20 wt. % of two types of ethylene-?-olefin copolymer elastomers each having a specific MFR and a specific density; and 23-30 wt. % of talc having a specific particle size.Type: ApplicationFiled: March 28, 2012Publication date: January 9, 2014Applicant: MAZDA MOTOR CORPORATIONInventors: Masahiro Nagata, Kenji Masuda, Yoshihiro Banno, Yasushi Okada, Masao Hara, Masaaki Onishi, Chiaki Asano, Kazuhisa To
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Patent number: 7736460Abstract: Disclosed is a film-removal/sorting method for coated resin products, which comprises a film removal step (S5) of feeding a target material comprising a mixture of plural types of coated resin products each having a different softening temperature in at least either one of a film (2b) and a substrate (2a) thereof, into a film removing apparatus (20), and heating the target material in the film removing apparatus (20) up to a temperature allowing the substrate (2a) or the film (2b) of at least either one of the coated resin products to be softened in a non-molten state, so as to remove the film (2b) from the substrate (2a), and a sorting step (S9) of sorting the target material after being subjected to the film removal step (S5), between a film-free material (2A) consisting of the substrate (2a) of the coated resin product which has succeeded in removing the film (2b) therefrom, and an untreated target material (2B) consisting of the remaining coated resin products having residual films (2b).Type: GrantFiled: February 9, 2007Date of Patent: June 15, 2010Assignee: Mazda Motor CorporationInventors: Kazuhisa To, Kenji Moriwaki
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Publication number: 20090246506Abstract: A structural polymer insert. The insert includes a substrate having a surface and an adhesive with the substrate being an admixture of a polypropylene component and a glass fiber component. The surface has a plurality of oxygen atoms, optionally introduced by air plasma, in an amount of 1 to 60 atomic percent of all the atoms present on the surface. The foam adhesive is attached to the surface through one or more reactive moieties resulted from oxidative action of the oxygen atoms.Type: ApplicationFiled: March 31, 2008Publication date: October 1, 2009Applicants: FORD GLOBAL TECHNOLOGIES, LLC, MAZDA MOTOR CORPORATIONInventors: Matthew John Zaluzec, Larry P. Haack, Ann Marie Straccia, Kazuhisa To
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Publication number: 20070187035Abstract: Disclosed is a film-removal/sorting method for coated resin products, which comprises a film removal step (S5) of feeding a target material comprising a mixture of plural types of coated resin products each having a different softening temperature in at least either one of a film (2b) and a substrate (2a) thereof, into a film removing apparatus (20), and heating the target material in the film removing apparatus (20) up to a temperature allowing the substrate (2a) or the film (2b) of at-least either one of the coated resin products to be softened in a non-molten state, so as to remove the film (2b) from the substrate (2a), and a sorting step (S9) of sorting the target material after being subjected to the film removal step (S5), between a film-free material (2A) consisting of the substrate (2a) of the coated resin product which has succeeded in removing the film (2b) therefrom, and an untreated target material (2B) consisting of the remaining coated resin products having residual films (2b).Type: ApplicationFiled: February 9, 2007Publication date: August 16, 2007Applicant: MAZDA MOTOR CORPORATIONInventors: Kazuhisa To, Kenji Moriwaki
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Publication number: 20040222541Abstract: This invention is made on the basis of the novel findings that when, after pulverization and coating film peeling, pulverized pieces to which the coating film not peeled by the coating film peeling adheres and pulverized pieces having no coating film adhered are separated, a substantial coating film removal ratio effectively increases. In this invention, pulverized pieces obtained upon pulverization of coated resin molded products and coating film peeling of pulverized pieces are prepared. The presence/absence of adhesion of the coating film is sensed and determined for each individual pulverized piece. On the basis of the determination result, a pulverized piece having the coating film adhered is separated from pulverized pieces having no coating film adhered. After the separation, molding is performed by using the pulverized pieces having no coating film adhered.Type: ApplicationFiled: February 9, 2004Publication date: November 11, 2004Applicants: Mazda Motor Corporation, Satake CorporationInventors: Kenji Moriwaki, Kazuhisa To, Norimasa Ikeda
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Publication number: 20020052440Abstract: A long glass fiber filler reinforced resin material for molding includes a matrix polymer comprising a polypropylene component having a pentad isotactic index of at least 95%, and having a melt flow rate (JIS K7210, a temperature of 230 ° C.; and a load of 21.18N) of 100 to 300 g/10 min; a long glass fiber filler in a content of 30 to 50 mass percent with respect to a total mass; an affinity providing component for providing affinity between the matrix polymer and the long glass fiber filler. At least the matrix polymer and the long glass fiber filler form a composite. Thus, breakage of the long glass fiber filler is suppressed during molding processing, so that a molded article having a high bending modulus and a high impact strength can be molded.Type: ApplicationFiled: November 27, 2001Publication date: May 2, 2002Inventors: Takahiro Tochioka, Kazuhisa To, Kenji Moriwaki