Patents Assigned to Seiren Co., Ltd.
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Publication number: 20240376666Abstract: A synthetic leather includes a fibrous base material and a porous resin layer. The porous resin layer is laminated on the fibrous base material. The porous resin layer has a plurality of holes. The porous resin layer contains a plurality of hollow particles in a resin serving as a base material of the porous resin layer. The plurality of hollow particles is dispersed in the resin serving as the base material of the porous resin layer. The hollow particle has the hole inside.Type: ApplicationFiled: October 3, 2022Publication date: November 14, 2024Applicant: SEIREN CO., LTD.Inventor: Kyosuke Takeshita
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Patent number: 12031267Abstract: Provided is a synthetic leather including a fibrous substrate, a porous resin layer provided on the fibrous substrate, and a non-porous resin layer provided on the porous resin layer. The synthetic leather has a thickness of 800 ?m or more, and a vertical cross-section of the porous resin layer has a pore area ratio of 25% or more.Type: GrantFiled: May 12, 2020Date of Patent: July 9, 2024Assignee: SEIREN CO., LTD.Inventor: Haruki Ito
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Patent number: 12011737Abstract: A printed matter has a substrate and a glossy layer provided on the substrate. The substrate is at least one selected from the group consisting of a steel plate, a metal plate, a plastic plate, a film, a ceramic plate, concrete, wood, glass, and fabric (the substrate is not a transparent member), wherein the glossy layer comprises a translucent ink, wherein on a surface of the substrate, a first region including a first protrusion formed along a first direction in a plane and a second region including a second protrusion formed along a second direction different from the first direction are formed, and wherein the first protrusion includes a curved part which is curved from the first direction to the second direction and connected to the second region.Type: GrantFiled: June 21, 2019Date of Patent: June 18, 2024Assignee: SEIREN CO., LTDInventor: Hiroshi Kitajima
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Patent number: 11999145Abstract: A seat skin 11 has a front surface layer 12, a back surface layer 13, and pores 15. The inner wall of the pore 15 is covered by the front surface layer 12. The seat skin 11 is produced by forming a base material having at least a front surface layer 12 and a back surface layer 13; sandwiching the base material between a pressing plate having a die for the pores, and a backing plate opposite the pressing plate; pressing the pressing plate against the backing plate with the base material being heated at a temperature that a component contained in the front surface layer 12 does not melt, to form the pores in the base material; and removing the base material having the pores formed therein from between the pressing plate and the backing plate.Type: GrantFiled: October 16, 2020Date of Patent: June 4, 2024Assignee: SEIREN CO., LTD.Inventor: Naozumi Fuwa
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Publication number: 20240026603Abstract: A synthetic leather according to an embodiment includes: a fibrous substrate; an adhesive layer containing a yellowing-resistant polycarbonate-based polyurethane resin and/or a yellowing polycarbonate-based polyurethane resin; and a skin layer that contains a yellowing-resistant polycarbonate-based polyurethane resin and that is laminated on the fibrous substrate via the adhesive layer. The synthetic leather has excellent oleic acid resistance.Type: ApplicationFiled: December 24, 2021Publication date: January 25, 2024Applicant: SEIREN CO., LTD.Inventors: Yasuki NABATA, Yoshiharu KATO
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Patent number: 11814783Abstract: Provided is a synthetic leather in which the occurrence of ease wrinkles can be inhibited or reduced. This synthetic leather comprises a cloth (10), and a resin layer (20) laminated on the cloth (10). The cloth (10) is a tricot knitted fabric knitted with front yarn, middle yarn, and back yarn, and having a nap (12). The tricot knitted fabric has a cord stitch structure knitted with the front yarn, a denbigh stitch structure or cord stitch structure knitted with the middle yarn, and an inlay structure or cord stitch structure knitted with the back yarn. The nap (12) is formed by napping a sinker loop side of the tricot knitted fabric.Type: GrantFiled: February 11, 2021Date of Patent: November 14, 2023Assignee: SEIREN CO., LTD.Inventor: Kazunori Kawamura
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Patent number: 11752969Abstract: A non-coated air bag base cloth of the present invention is constituted by a fabric formed using a yarn containing polyethylene terephthalate as a main raw material, in which a single fiber strength of a yarn of the fabric is 7.30 to 8.50 cN, a single fiber fineness of a yarn of the fabric is 1.6 to 3.9 dtex, and a cover factor is 2400 to 2800.Type: GrantFiled: September 27, 2018Date of Patent: September 12, 2023Assignee: SEIREN CO., LTD.Inventors: Shota Kodera, Tsuyoshi Houraiya
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Patent number: 11752968Abstract: Provided is a non-coated air bag fabric capable of solving problems regarding smoothness of a fabric surface while having low air permeability, and an air bag including the same. The non-coated air bag fabric according to the present invention includes a plurality of weft threads and a plurality of warp threads, in which the weft threads and the warp threads are constituted by multifilament threads in which polyethylene terephthalate fibers are used, the number of filaments in each of the multifilament threads is 122 to 242, and a warp/weft average MMD (a mean deviation of coefficient of friction) of a surface is 0.02 or less.Type: GrantFiled: March 29, 2018Date of Patent: September 12, 2023Assignee: SEIREN CO., LTD.Inventor: Shota Kodera
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Patent number: 11708664Abstract: A synthetic leather comprising a substrate, a skin layer that is disposed on one main surface of the substrate, and an anti-stain layer that is disposed to cover the skin layer. The anti-stain layer contains a base resin that comprises silicon and a unit derived from a compound that has a urethane bond. In the anti-stain layer, a fluorine atom/silicon atom atomic ratio, which is a proportion of a fluorine atom to the silicon atom, is 0.01 or less. A first color difference ?E1* between before and after a stain adhesion test performed on the synthetic leather rubbed under a specific condition is 5 or less.Type: GrantFiled: October 29, 2019Date of Patent: July 25, 2023Assignee: Seiren Co., Ltd.Inventor: Yusuke Wanibuchi
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Publication number: 20230144245Abstract: A non-coated air bag fabric according to the present invention includes a plurality of weft yarns and a plurality of warp yarns, in which the weft yarns and the warp yarns are constituted by multifilament yarns in which polyethylene terephthalate fibers are used, the number of filaments in each of the multifilament yarns ranges from 122 to 242, and a coefficient of kinetic friction of a surface of the fabric ranges from 1.15 to 1.25 or less, the coefficient of kinetic friction being calculated when a friction block in which polyvinyl chloride is used is brought into contact with the fabric placed on a stage that is rotating at a rotation speed of 663 rpm, at a load of 5 N, using a torque type friction and wear tester.Type: ApplicationFiled: March 30, 2021Publication date: May 11, 2023Applicant: SEIREN CO., LTD.Inventors: Shota KODERA, Tsuyoshi HOURAIYA
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Patent number: 11597180Abstract: Provided is a composite material for vehicles capable of substantially preventing the occurrence of wrinkles caused by ease stitching. This composite material for vehicles is a layered product of a skin material and a polyurethane foam sheet. The skin material has a play structure which, when the composite material for vehicles is stitched, allows the skin material to follow deformation caused by the stitching with a smooth state of a surface of the skin material maintained. The skin material is a woven fabric including warp yarns and weft yarns. The warp yarns and/or the weft yarns include two or more types of yarns having different total finenesses, and form the play structure.Type: GrantFiled: June 19, 2020Date of Patent: March 7, 2023Assignees: SEIREN CO., LTD., TOYOTA BOSHOKU KABUSHIKI KAISHAInventors: Naohiro Wada, Hayato Wakatsuki, Toshio Nakamura
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Patent number: 11560115Abstract: The present invention relates to an airbag base fabric including a woven fabric made from a yarn containing polyethylene terephthalate as the main raw material, the yarn having a single fiber fineness of 1.0 to 3.9 dtex and a total fineness of 280 to 470 dtex, and, in a Raman spectrum obtained by irradiating the yarn with a He—Ne laser with a wavelength of 630 nm, Ix/I0 being 1.20 or more, where Ix is the spectral intensity at 3083 cm?1, and I0=277.4.Type: GrantFiled: March 26, 2019Date of Patent: January 24, 2023Assignee: SEIREN CO., LTD.Inventors: Shota Kodera, Tsuyoshi Houraiya
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Patent number: 11482999Abstract: A capacitive sensor includes: a substrate that is in the form of a sheet; and a sensor electrode that is capacitive and disposed on a frontside of the substrate. The sensor electrode is a conductive fabric made by applying a metal plating on a mesh fabric that is woven of a plurality of warps and a plurality of wefts and that has openings each formed by two adjacent warps among the plurality of warps and two adjacent wefts among the plurality of wefts. An area defined by a maximum outside diameter of a warp or weft is smaller than an area of an opening space of each of the openings.Type: GrantFiled: July 17, 2020Date of Patent: October 25, 2022Assignees: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., SEIREN CO., LTD.Inventors: Wataru Takahara, Toshinori Sasaji
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Patent number: 11414042Abstract: A non-coated air bag fabric according to the present invention is woven using fibers containing polyethylene terephthalate as a main raw material, the fabric has a cover factor of 2350 or more, and a single fiber fineness of a yarn that constitutes the fabric is 2.0 dtex to 4.0 dtex inclusive.Type: GrantFiled: September 27, 2018Date of Patent: August 16, 2022Assignee: SEIREN CO., LTD.Inventor: Shota Kodera
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Patent number: 11414794Abstract: Provided is an airbag base fabric that is a woven fabric constituted by a yarn containing polyethylene terephthalate as the main raw material, the yarn constituting the woven fabric having a total fineness of 280 to 500 dtex and a single fiber fineness of 1.0 to 3.9 dtex, the woven fabric having a cover factor of 2400 to 2800, and the D-value calculated from the thickness D1 of a single sheet of the base fabric and the thickness D10 of ten sheets of the base fabric that are stacked together being 0.9 or less, where the D-value is calculated using a formula A below: D=D10/(D1×10).Type: GrantFiled: March 26, 2019Date of Patent: August 16, 2022Assignee: SEIREN CO., LTD.Inventors: Shota Kodera, Tsuyoshi Houraiya
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Patent number: 11390241Abstract: A non-coated air bag fabric is a fabric constituted by synthetic fibers, and the fabric has a cover factor of 2300 or more, a height difference between a recess and a protrusion on a surface of the fabric is less than 130 ?m, and a P ratio expressed by the following equation is 0.85 to 1.15 inclusive. The P ratio=HP100/HP80 where HP80 indicates air permeability after a load is applied to the fabric under a condition of 80° C., and HP100 indicates air permeability after a load is applied to the fabric under a condition of 100° C.Type: GrantFiled: September 27, 2018Date of Patent: July 19, 2022Assignee: SEIREN CO., LTD.Inventor: Tsuyoshi Houraiya
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Publication number: 20220220667Abstract: Provided is a synthetic leather including a fibrous substrate, a porous resin layer provided on the fibrous substrate, and a non-porous resin layer provided on the porous resin layer. The synthetic leather has a thickness of 800 ?m or more, and a vertical cross-section of the porous resin layer has a pore area ratio of 25% or more.Type: ApplicationFiled: May 12, 2020Publication date: July 14, 2022Applicant: SEIREN CO., LTD.Inventor: Haruki Ito
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Patent number: 11198960Abstract: A warp knitted fabric formed of yarns fed from at least three guide bars including front, middle, and back guide bars, in which a back yarn fed from the back guide bar forms a cord knit texture, a front yarn fed from the front guide bar and a middle yarn fed from the middle guide bar are arranged alternately in a weft direction, each of the front yarn and the middle yarn forms a stitch formation texture (a denbigh knit texture or a cord knit texture) and an insertion texture alternately in a warp direction, and the insertion texture formed by the front yarn and the insertion texture formed by the middle yarn are arranged alternately at least in the warp direction so that the front yarn and the middle yarn are exposed alternately at least in the warp direction on sinker loops of the back yarn.Type: GrantFiled: March 19, 2018Date of Patent: December 14, 2021Assignee: SEIREN CO., LTD.Inventors: Yuichi Taniguchi, Isao Honda
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Patent number: 11192324Abstract: A composite material for vehicle interior, including: a skin material disposed at one outermost side of the composite material, and having a first principal surface and a second principal surface opposite the first principal surface; and a backing material disposed at the other outermost side of the composite material, so as to face the second principal surface of the skin material. The skin material is formed of a fiber structure body, and has a plurality of first fold lines of folding with the first principal surface of the skin material outward, and a plurality of second fold lines of folding with the first principal surface inward. The first fold lines adjacent to each other are parallel to each other or form an acute angle ?1 of 10° or less, the second fold lines adjacent to each other are parallel to each other or form an acute angle ?2 of 10° or less, and the first fold line and the second fold line adjacent to each other are parallel to each other or form an acute angle ?12 of 10° or less.Type: GrantFiled: June 4, 2018Date of Patent: December 7, 2021Assignee: SEIREN CO., LTD.Inventor: Daisuke Kawabata
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Patent number: 11060240Abstract: Provided is synthetic leather with wrinkling and springiness similar to those of natural leather. The synthetic leather has a grain pattern and is obtained by laminating a polyurethane resin layer on a fibrous substrate. A stiffness of the front surface of the synthetic leather is 65 to 95 mm and a stiffness of a rear surface of the synthetic leather is 55 to 85 mm.Type: GrantFiled: June 26, 2018Date of Patent: July 13, 2021Assignee: SEIREN CO., LTD.Inventor: Michio Shinozaki