Patents Assigned to Teijin Limited
  • Patent number: 12294113
    Abstract: An embodiment according to the invention provides a separator for a non-aqueous secondary battery, containing a porous substrate and an adhesive porous layer that contains resin A and resin B1; (1) resin A: a copolymer containing vinylidene fluoride (VDF) and hexafluoropropylene (HFP), in which a molar content of HFP monomer unit with respect to a total molar quantity of VDF monomer unit and HFP monomer unit is from more than 1.5 mol % to 3.5 mol %, and (2) resin B1: a copolymer containing VDF, HFP, and a monomer of formula (1), in which a molar content of HFP monomer unit with respect to a total molar quantity of VDF monomer unit, HFP monomer unit, and a monomer unit of formula (1) is from more than 3.5 mol % to 15 mol % (R1 to R3: H, a halogen atom, a carboxyl group, etc., or a C1-5 alkyl group; X: a single bond, a C1-5 alkylene group, etc., Y: H, a C1-5 alkyl group, etc.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 6, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Rika Kuratani, Megumi Sato, Satoshi Nishikawa
  • Patent number: 12288898
    Abstract: Provided is a separator for a non-aqueous secondary battery containing a porous substrate; and a heat-resistant porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin A that is a polyvinylidene fluoride type resin containing a tetrafluoroethylene unit; a polyvinylidene fluoride type resin B that is a polyvinylidene fluoride type resin other than the polyvinylidene fluoride type resin A; and a filler, in which an average primary particle diameter of the filler contained in the heat-resistant porous layer is from 0.01 ?m to 1.0 ?m.
    Type: Grant
    Filed: February 13, 2020
    Date of Patent: April 29, 2025
    Assignee: TEIJIN LIMITED
    Inventor: Megumi Sato
  • Patent number: 12281198
    Abstract: It is an object of this invention to provide an optical member that is able to cut ultraviolet rays without employing means such as addition of an ultraviolet absorber to the resin, using an ultraviolet cut filter or using ultraviolet absorption coating, as well as a thermoplastic resin to be used for the optical member. The thermoplastic resin of the invention comprises a spatial structural component unit, wherein the spatial structural component unit includes four or more aromatic groups selected from the group consisting of monocyclic aromatic groups and fused polycyclic aromatic groups, the spatial structural component unit has three or more monocyclic aromatic groups and/or heterocyclic aromatic groups in a conjugated structure, or one or more monocyclic aromatic groups and one or more fused polycyclic aromatic groups in a conjugated structure, or two or more fused polycyclic aromatic groups in a conjugated structure, and in a 0.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: April 22, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Tatsuya Oyama, Manabu Matsui
  • Patent number: 12283715
    Abstract: Provided is a separator for a non-aqueous secondary battery containing a porous substrate; and an adhesive porous layer that is provided on one side or on both sides of the porous substrate, and that contains a polyvinylidene fluoride type resin, an acrylic type resin and metal sulfate particles, in which an average primary particle diameter of the metal sulfate particles contained in the adhesive porous layer is from 0.01 ?m to less than 0.30 ?m.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: April 22, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Hiroshi Sakurai, Rika Kuratani, Satoshi Nishikawa
  • Publication number: 20250122374
    Abstract: The flame-retardant polycarbonate resin composition containing (A) 100 parts by weight of polycarbonate resin (component A); and with respect to (A); (B) (B-1) 1 to 30 parts by weight of ABS resin (component B-1-1), 1 to 10 parts by weight of methyl methacrylate-butadiene-styrene copolymer (component B-1-2), (B-2) 1 to 100 parts by weight of aromatic polyester resin (component B-2), or (B-3) 0.1 to 160 parts by weight of inorganic filler (component B-3); (D) 1 to 45 parts by weight of phosphazene (component D) containing 98.5 mol % or more of phosphazene cyclic trimer; and (E) 0.05 to 4 parts by weight of anti-drip agent (component E), and a molded product thereof, which has excellent impact strength, flame retardancy, and durability.
    Type: Application
    Filed: December 23, 2022
    Publication date: April 17, 2025
    Applicant: TEIJIN LIMITED
    Inventors: Kengo HIGASHI, Koji ODA, Atsushi SUMITA, Ken MINAGAWA
  • Patent number: 12278354
    Abstract: A battery containment construct is provided that includes a unitary tray having a bottom and a set of walls including a first side wall, a second side wall, a first end wall, and a second end wall. The set of walls extending from the bottom of the tray and defining a cavity within the tray. A cover removably attached to the plurality of walls of said tray opposite the bottom of said tray. Energy absorption components attached to the bottom of the tray external to at least one of the set of walls in some versions to enhance impact resistance. The construct has high strength, is light weight and well suited for containing and protecting energy cells or batteries that adjusted to impact resistance, fire resistance, and fluid penetration prevention.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: April 15, 2025
    Assignees: Teljin Limited, Teijin Automotive Technologies, Inc.
    Inventors: Masatomo Teshima, Max Kamiyama, Shunsuke Tamura, Hugh Foran
  • Patent number: 12269200
    Abstract: A process management system virtually segments an extruded resin sheet into individual areas associated with several resin sheets. The individual areas are further virtually segmented into segmented areas. Curvature related information related to a curvature after completion of a heat press processing is acquired for each segmented area for each individual area. In a coating condition per area setting process, coating conditions are set for each segmented area for each individual area in accordance with a curvature based on curvature related information of each segmented area for each individual area. In a coating implementing process, a coating is applied to each segmented area for each individual area based on the coating condition.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: April 8, 2025
    Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, TEIJIN LIMITED
    Inventors: Kazumasa Okumura, Toshiaki Hotaka
  • Patent number: 12265218
    Abstract: An object of the present invention is to provide a light-transmissive cover, which does not deteriorate luminance of images projected from a display unit, while easily suppressing heat input from the sun into the display unit of a head-up display without using an expensive member. The present invention is a light-transmissive member for use in a head-up display device, and the light-transmissive member is formed of a polycarbonate-based resin composition, has a thickness in a range of 0.2 to 0.6 mm and contains composite tungsten oxide particles as an infrared ray shielding agent, wherein a content of the composite tungsten oxide particles, A (weight %), and a thickness of a layer containing the composite tungsten oxide particles, B (mm), satisfy the following formula (1): 0.02?A×B?0.12.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: April 1, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Koichi Masaoka, Kyoichi Kubo
  • Patent number: 12251893
    Abstract: The present invention provides a method for manufacturing a press-molded body, the method having a step for disposing an X material inside a mold, a step for closing the mold and extruding a Y material, which is a kneaded material, into the mold after pressure has begun to be applied to part of the X material, and a step for cold-pressing and integrally molding the X material and the Y material inside the mold, wherein: the X material includes reinforcing fibers FA, having a weight-average fiber length LwA, and a thermoplastic resin RX; the Y material includes reinforcing fibers FB, having a weight-average fiber length LwB, and a thermoplastic resin RY; LwB<LwA; LwA is 1 mm or greater and 100 mm or less; the X material has a spring-back amount greater than 1.0 and less than 14.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: March 18, 2025
    Assignee: Teijin Limited
    Inventor: Keizo Yokoyama
  • Publication number: 20250085283
    Abstract: A method for quantifying nicotinamide adenine dinucleotide (NAD+) or nicotinamide mononucleotide (NMN) includes: Step 1 of bringing a filter paper, impregnated with a radical inhibitor or a chaotropic agent, and with added blood derived from a test subject, into contact with a solvent; and Step 2 of quantifying the nicotinamide adenine dinucleotide (NAD+) or nicotinamide mononucleotide (NMN) in the solvent obtained in Step 1.
    Type: Application
    Filed: August 24, 2022
    Publication date: March 13, 2025
    Applicant: Teijin Limited
    Inventors: Ryo MATSUYAMA, Tomoyo OMATA
  • Publication number: 20250074820
    Abstract: Purposes of the present invention are to provide a carbon-fiber-containing concrete or mortar composition which has excellent handleability due to a reinforcement produced from precut raw-material carbon fibers, such as short fibers, scrap fibers resulting from processes, or carbon fibers reclaimed from CFRPs, etc., and to provide a carbon-fiber-reinforced concrete or mortar structure which is a cured object formed from the carbon-fiber-containing concrete or mortar composition and in which the fibers have a high reinforcing effect. This carbon-fiber-containing concrete or mortar composition includes carbon-fiber masses each configured at least from carbon fibers and a binder, and is characterized in that the carbon-fiber masses each have the shape of a spindle.
    Type: Application
    Filed: January 17, 2023
    Publication date: March 6, 2025
    Applicant: TEIJIN LIMITED
    Inventor: Shingo NYUI
  • Patent number: 12240944
    Abstract: The invention provides an optical lens that can provide small-sized imaging modules. The optical lens of the invention comprises a thermoplastic resin having a refractive index (nD) and Abbe number (?) satisfying the following mathematical formula (A): nD??0.02×?+2.040??(A) (where 1.660<nD).
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: March 4, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Kyosuke Yamada, Manabu Matsui, Takatsune Yanagida, Kazuyoshi Ogasawara, Kazunori Nunome, Keisuke Sato, Tatsuya Oyama, Yasuhiko Tomonari
  • Publication number: 20250050553
    Abstract: An inspection device (1) is provided with a storage unit (14) for storing a mechanical property inference model generated by machine learning based on mechanical property information and nondestructive inspection information of a first molded body region which is reinforced with reinforcing fibers and of which the mechanical property information and nondestructive inspection information are known, the mechanical property inference model taking nondestructive inspection information of a second molded body region, which is reinforced with reinforcing fibers and of which mechanical property information is unknown, as an input and inferring the mechanical property information of the second molded body region; wherein the inspection device (1) acquires the nondestructive inspection information of the second molded body region, inputs the nondestructive inspection information into the mechanical property inference model, acquires the mechanical property information of the second molded body region from the mechanic
    Type: Application
    Filed: December 9, 2022
    Publication date: February 13, 2025
    Applicant: TEIJIN LIMITED
    Inventors: Kaori TANIGAMI, Chio MINEO, Takeru OHKI
  • Patent number: 12221725
    Abstract: The present invention provides a method for producing a carbon fiber bundle, the method including steps (b) to (e) described below: (b) an oil agent application step of applying a silicone oil agent to a precursor fiber bundle to produce an oil-agent-attached precursor fiber bundle; (d) a stabilization step of subjecting the oil-agent-attached precursor fiber bundle to an oxidization treatment to produce an oxidized fiber bundle; and (e) a carbonization step of carbonizing the oxidized fiber bundle, wherein the silicone oil agent has a skin over time at 250° C. of less than 40 minutes.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: February 11, 2025
    Assignees: TEIJIN LIMITED, WACKER CHEMIE AG
    Inventors: Hiroko Yokoyama, Eiji Kinoshita, Satoshi Ohno, Izuru Taketa
  • Patent number: 12195622
    Abstract: A polycarbonate resin composition or a copolymer, comprising, as main repeating units, a carbonate unit (a-1) having a fluorene ring in a side chain, a carbonate unit (a-2) represented by the following formula (a-2): (wherein W represents an alkylene group having 1 to 20 carbon atoms or a cycloalkylene group having 6 to 20 carbon atoms, R represents a branched or linear-chain alkyl group having 1 to 20 carbon atoms or a cycloalkyl group having 6 to 20 carbon atoms optionally having a substituent, and u represents an integer of 0 to 3), and a carbonate unit (a-3) derived from 2,2-bis(4-hydroxyphenyl)propane, wherein 1) a molar ratio of the carbonate unit (a-1) to the carbonate unit (a-2) is from 50/50 to 80/20, and 2) a molar ratio of the total of the carbonate unit (a-1) and the carbonate unit (a-2) to the carbonate unit (a-3) is from 1:99 to 70:30. This polycarbonate resin composition or copolymer has excellent heat resistance, transparency, and bending resistance and has low retardation.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: January 14, 2025
    Assignee: TEIJIN LIMITED
    Inventors: Shoichi Maekawa, Yohei Okada
  • Patent number: 12172502
    Abstract: A vehicle component includes a body, a first beam, and a second beam. The body has a first fixture region and a second fixture region. The first beam is formed of a first composite material and has a first beam shape. The first beam is attached to the body and extends between the first fixture region and the second fixture region of the body. The second beam is formed of a second composite material and has a second beam shape that is simple compared to the first beam shape. The second beam is attached to the body and extends between the first fixture region and the second fixture region of the body.
    Type: Grant
    Filed: March 11, 2020
    Date of Patent: December 24, 2024
    Assignees: Teijin Limited, Teijin Automotive Technologies, Inc.
    Inventors: Masatomo Teshima, Yoshiharu Asada, Yoshiki Kashiwagi, Marc-Philippe Toitgans
  • Patent number: 12157095
    Abstract: The present disclosure provides a substrate for a liquid filter, including: a polyolefin microporous membrane, in which a mean flow pore size in a pore size distribution of the polyolefin microporous membrane measured by a half dry method according to gas-liquid phase substitution is from 1 nm to 50 nm, a calcium content in the polyolefin microporous membrane is 2,000 ppb or less, and a ratio of a tensile elongation in a longitudinal direction (MD) to a tensile elongation in a width direction (TD) perpendicular to the longitudinal direction (MD/TD tensile elongation ratio) of the polyolefin microporous membrane is from 0.47 to less than 0.96 or from more than 1.25 to 7.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: December 3, 2024
    Assignee: TEIJIN LIMITED
    Inventors: Ayumi Iwai, Koji Furuya, Yu Nagao, Yoshikazu Ikuta
  • Publication number: 20240387945
    Abstract: Provided is a separator for a non-aqueous secondary battery, the separator contains a porous substrate and an adhesive porous layer that contains a polyvinylidene fluoride type resin and a filler, in which a Gurley value of the separator is from 50 sec/100 mL to 200 sec/100 mL, and when differential scanning calorimetry is performed with all of the polyvinylidene fluoride type resin contained in the adhesive porous layer as a sample, two or more endothermic peaks and/or two or more exothermic peaks are observed.
    Type: Application
    Filed: July 15, 2022
    Publication date: November 21, 2024
    Applicant: TEIJIN LIMITED
    Inventors: Rika KURATANI, Mai MIURA, Satoshi NISHIKAWA
  • Publication number: 20240387949
    Abstract: A separator for a non-aqueous secondary battery, the separator including a porous substrate, and an adhesive layer that is provided on one side or on both sides of the porous substrate, and that contains at least one selected from the group consisting of: (i) adhesive resin particles containing a phenyl group-containing acrylic type resin and a polyvinylidene fluoride type resin, and (ii) a mixture of adhesive resin particles containing a phenyl group-containing acrylic type resin and adhesive resin particles containing a polyvinylidene fluoride type resin
    Type: Application
    Filed: September 2, 2022
    Publication date: November 21, 2024
    Applicant: TEIJIN LIMITED
    Inventors: Shuhei ONOUE, Satoshi NISHIKAWA
  • Patent number: 12142393
    Abstract: An object of the present invention is to provide an insulation sheet having high thermal conductivity in the in-plane direction. The present invention provides an insulation sheet comprising insulating particles and a binder resin, wherein, for the entire cross-section of the sheet perpendicular to the in-plane direction, the insulation sheet contains 75 to 97% by area of the insulating particles, 3 to 25% by area of the binder resin, and 10% by area or less of the voids.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: November 12, 2024
    Assignee: TEIJIN LIMITED
    Inventors: Masanori Maeda, Yoshinori Ikeda, Masayuki Chokai, Takuya Murakami