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Assignee profile:

TEIJIN LIMITED

City:

Osaka

Country:

Japan

Published Applications:

467

Last publication date:

2026-05-21

Patent Grants:

411

Last grant date:

2025-12-30

Quarterly TEIJIN LIMITED Patent Applications

Top Inventors for applications by TEIJIN LIMITED

These are the the leading inventors for applications assigned to TEIJIN LIMITED:

Recent patent applications by TEIJIN LIMITED

TEIJIN LIMITED based in Osaka, JP has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:

#1 | 2026-05-21
US20260139096A1
Chemistry; metallurgy

THERMOPLASTIC RESIN AND OPTICAL MEMBER

 #2 | 2026-04-02
US20260092167A1
Chemistry; metallurgy

AROMATIC POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

 #3 | 2025-06-19
US20250199203A1
Physics

THERMOPLASTIC RESIN AND OPTICAL MEMBER CONTAINING SAME

 #4 | 2024-07-25
US20240247118A1
Chemistry; metallurgy

THERMOPLASTIC RESIN PREPREG, PRODUCTION METHOD THEREOF, AND FIBER-REINFORCED COMPOSITE MATERIAL

 #5 | 2024-06-06 ✅ Patent 12,511,732 granted on 2025-12-30
US20240185410A1
Physics

METHOD FOR INDIVIDUAL RECOGNITION OF FIBER-REINFORCED PLASTIC

 #6 | 2024-02-08 ✅ Patent 12,548,841 granted on 2026-02-10
US20240047809A1
Electricity

VEHICLE STRUCTURE

 #7 | 2024-01-11
US20240010834A1
Chemistry; metallurgy

THERMOPLASTIC RESIN AND OPTICAL MEMBER INCLUDING SAME

 #8 | 2023-12-07
US20230391177A1
Performing operations; transporting

VEHICLE STRUCTURE

 #9 | 2023-11-16
US20230365748A1
Chemistry; metallurgy

CATALYST PARTICLES FOR POLYESTER PRODUCTION AND METHOD FOR PRODUCING POLYESTER USING SAME

 #10 | 2023-11-02 ✅ Patent 12,043,020 granted on 2024-07-23
US20230349083A1
Textiles; paper

Stitched fiber-reinforced substrate material, preform material, fiber reinforced composite material, and manufacturing method for same

 #11 | 2023-11-02 ✅ Patent 12,649,305 granted on 2026-06-09
US20230347636A1
Performing operations; transporting

POLYMER MEMBER/INORGANIC BASE COMPOSITE, PRODUCTION METHOD THEREFOR, AND POLYMER MEMBER THEREFOR

 #12 | 2023-10-19 ✅ Patent 12,504,742 granted on 2025-12-23
US20230333538A1
Physics

INTERMEDIATE PROCESSING METHOD FOR EXTRUDED RESIN SHEET AND HEAT PRESS PROCESSING METHOD FOR INTERMEDIATE RESIN SHEET WITH EXTRUDED RESIN SHEET SUBJECTED TO INTERMEDIATE PROCESSING

 #13 | 2023-10-19 ✅ Patent 12,359,019 granted on 2025-07-15
US20230331906A1
Chemistry; metallurgy

PREPREG, METHOD FOR PRODUCING SAME, AND METHOD FOR PRODUCING FIBER-REINFORCED COMPOSITE MATERIAL

 #14 | 2023-10-12 ✅ Patent 12,521,932 granted on 2026-01-13
US20230321894A1
Performing operations; transporting

METHOD OF PRODUCING CURVED MEMBER AND POLYCARBONATE RESIN LAMINATE WITH HARD COAT LAYER FOR HEAT BENDING

 #15 | 2023-10-12 ✅ Patent 12,269,200 granted on 2025-04-08
US20230321886A1
Performing operations; transporting

Intermediate processing method of extruded resin sheet

 #16 | 2023-09-07 ✅ Patent 12,609,414 granted on 2026-04-21
US20230282936A1
Electricity

NON-AQUEOUS SECONDARY BATTERY

 #17 | 2023-09-07 ✅ Patent 12,455,264 granted on 2025-10-28
US20230280311A1
Physics

NON-TRANSITORY COMPUTER READABLE MEDIUM STORING PROGRAM FOR INSPECTING MOLDED ARTICLE REGION, METHOD FOR INSPECTING MOLDED ARTICLE REGION, AND DEVICE FOR INSPECTING MOLDED ARTICLE REGION

 #18 | 2023-08-31 ✅ Patent 12,646,803 granted on 2026-06-02
US20230275320A1
Electricity

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

 #19 | 2023-08-31 ✅ Patent 12,428,778 granted on 2025-09-30
US20230272577A1
Textiles; paper

CARBON FIBER BUNDLE WITH ADHERED SIZING AGENT

 #20 | 2023-08-24
US20230265282A1
Chemistry; metallurgy

POLYCARBONATE RESIN COMPOSITION AND MOLDED ARTICLE HAVING DOT-LIKE APPEARANCE

 #21 | 2023-08-17 ✅ Patent 12,409,719 granted on 2025-09-09
US20230256803A1
Performing operations; transporting

BATTERY TRAY MADE OF INTEGRALLY MOLDED FIBER REINFORCED PLASTICS

 #22 | 2023-07-27
US20230235118A1
Chemistry; metallurgy

THERMOPLASTIC RESIN AND OPTICAL MEMBER CONTAINING SAME

 #23 | 2023-06-29 ✅ Patent 12,658,530 granted on 2026-06-16
US20230207970A1
Electricity

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

 #24 | 2023-06-22 ✅ Patent 11,883,989 granted on 2024-01-30
US20230191667A1
Performing operations; transporting

Method for producing press molded body

 #25 | 2023-06-15
US20230182406A1
Performing operations; transporting

COMPOSITE MATERIAL AND METHOD FOR PRODUCING MOLDED ARTICLE

 #26 | 2023-05-25
US20230158784A1
Performing operations; transporting

VEHICLE COMPONENT UNIT AND METHOD FOR PRODUCING A VEHICLE COMPONENT UNIT

 #27 | 2023-05-18
US20230151165A1
Chemistry; metallurgy

HIGH-CONCENTRATION PARTICLE-CONTAINING FILM AND METHOD FOR PRODUCING SAME

 #28 | 2023-03-02 ✅ Patent 12,544,205 granted on 2026-02-10
US20230063894A1
Human necessities

WARP-KNITTED FABRIC AND MEDICAL MATERIAL

 #29 | 2023-02-16 ✅ Patent 12,441,880 granted on 2025-10-14
US20230051676A1
Chemistry; metallurgy

POLYCARBONATE AND METHOD FOR PRODUCING POLYCARBONATE

 #30 | 2023-01-19 ✅ Patent 11,746,445 granted on 2023-09-05
US20230017814A1
Textiles; paper

Carbon fiber bundle, prepreg, and fiber-reinforced composite material

 #31 | 2023-01-05 ✅ Patent 11,936,103 granted on 2024-03-19
US20230006341A1
Electricity

Conductive film for antennas, and antenna

 #32 | 2022-12-29 ✅ Patent 12,134,216 granted on 2024-11-05
US20220410443A1
Performing operations; transporting

Method for producing molded body by compression-molding

 #33 | 2022-12-08
US20220393282A1
Electricity

BATTERY BOX COMPONENT WHEREIN FIBER-REINFORCED PLASTIC IS PROVIDED WITH REFRACTORY LAYER, AND METHOD FOR PRODUCING BATTERY BOX COMPONENT

 #34 | 2022-11-10 ✅ Patent 12,334,560 granted on 2025-06-17
US20220359881A1
Electricity

FIBROUS-CARBON-CONTAINING ACTIVE MATERIAL LAYER FOR ALL-SOLID LITHIUM SECONDARY BATTERY AND ALL-SOLID LITHIUM SECONDARY BATTERY

 #35 | 2022-09-15 ✅ Patent 12,221,725 granted on 2025-02-11
US20220290337A1
Textiles; paper

Method for producing carbon fiber bundle

 #36 | 2022-07-07 ✅ Patent 12,278,354 granted on 2025-04-15
US20220216560A1
Electricity

Battery containment construct

 #37 | 2022-06-30 ✅ Patent 11,929,531 granted on 2024-03-12
US20220209272A1
Electricity

Composite membrane

 #38 | 2022-06-23 ✅ Patent 12,633,621 granted on 2026-05-19
US20220200098A1
Electricity

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

 #39 | 2022-06-16 ✅ Patent 12,283,715 granted on 2025-04-22
US20220190441A1
Electricity

Separator for non-aqueous secondary battery and non-aqueous secondary battery

 #40 | 2022-06-02 ✅ Patent 12,172,502 granted on 2024-12-24
US20220169097A1
Performing operations; transporting

Composite vehicle components formed of sheet molding compound reinforced with continuous fibers

 #41 | 2022-05-26 ✅ Patent 12,142,393 granted on 2024-11-12
US20220165457A1
Electricity

Insulation sheet

 #42 | 2022-05-19 ✅ Patent 12,288,898 granted on 2025-04-29
US20220158301A1
Electricity

Separator for non-aqueous secondary battery and non-aqueous secondary battery

 #43 | 2022-05-12 ✅ Patent 12,407,066 granted on 2025-09-02
US20220149483A1
Electricity

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

 #44 | 2022-05-12 ✅ Patent 12,401,094 granted on 2025-08-26
US20220149482A1
Electricity

SEPARATOR FOR NON-AQUEOUS SECONDARY BATTERY AND NON-AQUEOUS SECONDARY BATTERY

 #45 | 2022-05-12 ✅ Patent 12,240,944 granted on 2025-03-04
US20220146713A1
Physics

Optical lens

 #46 | 2022-05-12 ✅ Patent 12,351,697 granted on 2025-07-08
US20220145041A1
Chemistry; metallurgy

RESIN COMPOSITION FOR INFRARED RAY-BLOCKING TRANSPARENT MEMBER, AND MOLDED ARTICLE

 #47 | 2022-05-12 ✅ Patent 12,281,198 granted on 2025-04-22
US20220145005A1
Chemistry; metallurgy

Thermoplastic resin and optical member

 #48 | 2022-05-12 ✅ Patent 11,772,370 granted on 2023-10-03
US20220143958A1
Performing operations; transporting

Laminated body, method of producing metal member, and method of producing resin member

 #49 | 2022-05-05 ✅ Patent 12,195,622 granted on 2025-01-14
US20220135795A1
Chemistry; metallurgy

Polycarbonate resin composition or copolymer, and optical film

 #50 | 2022-04-28 ✅ Patent 12,084,572 granted on 2024-09-10
US20220127455A1
Chemistry; metallurgy

Impeller and resin composition therefor

 #51 | 2022-04-14 ✅ Patent 11,773,258 granted on 2023-10-03
US20220112369A1
Chemistry; metallurgy

Flame-retardant polycarbonate resin composition

 #52 | 2022-02-17
US20220049092A1
Chemistry; metallurgy

POLYCARBONATE RESIN COMPOSITION

 #53 | 2022-02-03 ✅ Patent 11,787,129 granted on 2023-10-17
US20220032558A1
Performing operations; transporting

Surface-coated film, surface-coated fiber-reinforced resin molded product, and manufacturing method thereof

 #54 | 2022-01-20 ✅ Patent 12,084,546 granted on 2024-09-10
US20220017698A1
Chemistry; metallurgy

Thermosetting resin composition, film adhesive, prepreg, and production method thereof

 #55 | 2022-01-13 ✅ Patent 11,846,047 granted on 2023-12-19
US20220010467A1
Textiles; paper

Cloth and protective product

 #56 | 2022-01-13 ✅ Patent 12,251,893 granted on 2025-03-18
US20220009180A1
Performing operations; transporting

Method for manufacturing press-molded body

 #57 | 2022-01-13 ✅ Patent 12,304,162 granted on 2025-05-20
US20220009179A1
Performing operations; transporting

Method for producing press-molded body

 #58 | 2021-12-09 ✅ Patent 12,435,451 granted on 2025-10-07
US20210381133A1
Textiles; paper

METHOD FOR MANUFACTURING PRECURSOR FIBER BUNDLE, METHOD FOR MANUFACTURING CARBON FIBER BUNDLE, AND CARBON FIBER BUNDLE

 #59 | 2021-12-02 ✅ Patent 11,505,698 granted on 2022-11-22
US20210371650A1
Chemistry; metallurgy

Polyester carbonate and method for producing polyester carbonate

 #60 | 2021-11-11 ✅ Patent 12,643,267 granted on 2026-06-02
US20210347096A1
Performing operations; transporting

Method for producing composite material

 #61 | 2021-10-21 ✅ Patent 12,134,838 granted on 2024-11-05
US20210324545A1
Textiles; paper

Carbon fiber aggregate and method for producing same, and electrode mixture layer for nonaqueous-electrolyte secondary battery

 #62 | 2021-10-07 ✅ Patent 12,157,095 granted on 2024-12-03
US20210308633A1
Performing operations; transporting

Base material for liquid filters

 #63 | 2021-09-23 ✅ Patent 11,421,974 granted on 2022-08-23
US20210293520A1
Physics

Sensor device with improved stability

 #64 | 2021-09-23 ✅ Patent 11,319,404 granted on 2022-05-03
US20210292471A1
Chemistry; metallurgy

Epoxy compound, epoxy resin, epoxy resin composition, cured resin product, prepreg, fiber-reinforced composite material, and production methods for these

 #65 | 2021-09-16 ✅ Patent 12,573,652 granted on 2026-03-10
US20210288341A1
Electricity

SUBSTRATE FOR COMPOSITE MEMBRANE

 #66 | 2021-06-24 ✅ Patent 12,095,091 granted on 2024-09-17
US20210194006A1
Electricity

Binder for non-aqueous secondary battery and dispersion thereof

 #67 | 2021-06-24 ✅ Patent 11,584,091 granted on 2023-02-21
US20210187868A1
Performing operations; transporting

Method of producing metal member, method of producing resin member, and method of producing exterior part

 #68 | 2021-06-03 ✅ Patent 11,787,126 granted on 2023-10-17
US20210162681A1
Performing operations; transporting

Bonding system and bonding method

 #69 | 2021-06-03 ✅ Patent 11,235,536 granted on 2022-02-01
US20210162678A1
Performing operations; transporting

Method for welding synthetic resin member

 #70 | 2021-05-20 ✅ Patent 11,261,294 granted on 2022-03-01
US20210147621A1
Chemistry; metallurgy

Thermoplastic resin and optical member

 #71 | 2021-05-13 ✅ Patent 11,387,458 granted on 2022-07-12
US20210143427A1
Electricity

Carbon fiber aggregate and method for manufacturing same, electrode mixture layer for non-aqueous-electrolyte secondary cell, electrode for non-aqueous-electrolyte secondary cell, and non-aqueous-electrolyte secondary cell

 #72 | 2021-04-29 ✅ Patent 12,265,218 granted on 2025-04-01
US20210124169A1
Physics

Head-up display device and light-transmissive member used therefor

 #73 | 2021-04-29 ✅ Patent 11,832,660 granted on 2023-12-05
US20210120890A1
Human necessities

Garment having an internal airflow space between inner and outer fabrics and a separate heat insulation material in the internal airflow space

 #74 | 2021-04-15 ✅ Patent 12,378,373 granted on 2025-08-05
US20210108040A1
Chemistry; metallurgy

COMPOSITE MATERIAL AND PRODUCTION METHOD THEREFOR

 #75 | 2021-04-15 ✅ Patent 11,414,523 granted on 2022-08-16
US20210108033A1
Chemistry; metallurgy

Polycarbonate-polydiorganosiloxane copolymer, resin composition of polycarbonate-polydiorganosiloxane copolymer, and production method for resin composition of polycarbonate-polydiorganosiloxane copolymer

 #76 | 2021-04-15 ✅ Patent 12,134,261 granted on 2024-11-05
US20210107250A1
Performing operations; transporting

Self-adhesive prepreg and method for producing same

 #77 | 2021-03-11 ✅ Patent 11,692,302 granted on 2023-07-04
US20210071356A1
Textiles; paper

Sizing agent composition, method for producing carbon fibers, and carbon fibers each having sizing agent applied thereonto

 #78 | 2021-02-25 ✅ Patent 12,074,339 granted on 2024-08-27
US20210057703A1
Electricity

Separator including porous substrate, heat resistant porous layer, and adhesive layer, and non-aqueous secondary battery including the same

 #79 | 2021-02-25 ✅ Patent 12,018,410 granted on 2024-06-25
US20210054543A1
Textiles; paper

Fixed carbon fiber bundle and method for producing fixed carbon fiber bundle

 #80 | 2021-02-18
US20210047463A1
Chemistry; metallurgy

POLYCARBONATE RESIN AND METHOD FOR MANUFACTURING SAME

 #81 | 2021-02-11 ✅ Patent 11,578,168 granted on 2023-02-14
US20210040263A1
Chemistry; metallurgy

Polycarbonate resin and optical member containing same

 #82 | 2021-02-04 ✅ Patent 11,760,840 granted on 2023-09-19
US20210032409A1
Chemistry; metallurgy

Thermoplastic resin composition and molded article thereof

 #83 | 2021-02-04 ✅ Patent 12,102,458 granted on 2024-10-01
US20210030507A1
Human necessities

Reusable medical box

 #84 | 2021-01-28 ✅ Patent 12,441,853 granted on 2025-10-14
US20210024713A1
Chemistry; metallurgy

PREPREG AND CARBON FIBER-REINFORCED COMPOSITE MATERIAL

 #85 | 2021-01-14
US20210008851A1
Performing operations; transporting

METHOD FOR PRODUCING SUBSTRATE HAVING HARD COAT LAYER CONTAINING FUNCTIONAL FINE PARTICLES

 #86 | 2021-01-07 ✅ Patent 11,835,487 granted on 2023-12-05
US20210003538A1
Physics

Ultrasonic inspection of extents of voids or the like in heated material using fluid blowing

 #87 | 2021-01-07 ✅ Patent 11,535,979 granted on 2022-12-27
US20210002819A1
Textiles; paper

Fiber material for cement reinforcement

 #88 | 2021-01-07 ✅ Patent 11,566,102 granted on 2023-01-31
US20210002420A1
Chemistry; metallurgy

Polyester resin or polyester carbonate resin, and optical member using said resin

 #89 | 2020-12-31 ✅ Patent 12,294,113 granted on 2025-05-06
US20200411827A1
Electricity

Separator for non-aqueous secondary battery and non-aqueous secondary battery

 #90 | 2020-12-31
US20200407866A1
Chemistry; metallurgy

PLATING DIAPHRAGM, PLATING METHOD, AND PLATING APPARATUS

 #91 | 2020-12-31
US20200407498A1
Chemistry; metallurgy

POLYCARBONATE HAVING ELECTRO-OPTIC EFFECT, METHOD FOR PRODUCING SAME, AND LIGHT CONTROL ELEMENT WHICH USES SAID POLYCARBONATE

 #92 | 2020-12-10 ✅ Patent 11,560,646 granted on 2023-01-24
US20200385891A1
Textiles; paper

Carbon fiber bundle, prepreg, and fiber-reinforced composite material

 #93 | 2020-12-10 ✅ Patent 11,780,124 granted on 2023-10-10
US20200384671A1
Performing operations; transporting

Apparatus for manufacturing thermoplastic resin material

 #94 | 2020-12-03 ✅ Patent 11,866,564 granted on 2024-01-09
US20200377682A1
Chemistry; metallurgy

Polymer substrate with hard coat layer

 #95 | 2020-11-26 ✅ Patent 11,795,279 granted on 2023-10-24
US20200369843A1
Chemistry; metallurgy

Composite material, production method for molded object, and production method for composite material

 #96 | 2020-11-26 ✅ Patent 11,291,373 granted on 2022-04-05
US20200367758A1
Human necessities

Deep-body-temperature estimation system, heat stress warning system, and deep-body-temperature estimation method

 #97 | 2020-11-19 ✅ Patent 11,707,095 granted on 2023-07-25
US20200359715A1
Human necessities

Garment

 #98 | 2020-11-12 ✅ Patent 11,339,249 granted on 2022-05-24
US20200354517A1
Chemistry; metallurgy

Compound having fluorene skeleton, and method for manufacturing same

 #99 | 2020-10-22 ✅ Patent 11,168,186 granted on 2021-11-09
US20200332077A1
Chemistry; metallurgy

Random mat and fiber-reinforced composite material shaped product

 #100 | 2020-10-08 ✅ Patent 11,285,710 granted on 2022-03-29
US20200316928A1
Performing operations; transporting

Multilayer body

Also check out TEIJIN LIMITED's (Osaka, Japan) applicant profile with 187 patent applications submitted.

AssigneeID:

2010 ⎘