Assignee profile:

POLYPLASTICS CO., LTD.

City:

Tokyo

Country:

Japan

Published Applications:

129

Last publication date:

2026-04-09

Patent Grants:

88

Last grant date:

2024-03-19

Top Inventors for applications by POLYPLASTICS CO., LTD.

These are the the leading inventors for applications assigned to POLYPLASTICS CO., LTD.:

Recent patent applications by POLYPLASTICS CO., LTD.

POLYPLASTICS CO., LTD. based in Tokyo, JP has been assigned the rights to these inventions. The list includes both Pending Applications and Patent Grants:

#1 | 2026-04-09
US20260098360A1
Textiles; paper

FILAMENT FOR THREE-DIMENSIONAL MOLDING, METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE, AND THREE-DIMENSIONAL MOLDED ARTICLE

#2 | 2026-04-09
US20260098132A1
Chemistry; metallurgy

POLYARYLENE SULFIDE RESIN COMPOSITION

#3 | 2026-04-09
US20260097562A1
Performing operations; transporting

THREE-DIMENSIONAL MOLDED ARTICLE AND METHOD FOR PRODUCING THREE-DIMENSIONAL MOLDED ARTICLE

#4 | 2026-03-19
US20260080563A1
Physics

METHOD FOR ANALYZING ORIENTATION STATE OF FILLER IN RESIN MOLDED PRODUCT

#5 | 2025-12-18
US20250383261A1
Physics

METHOD FOR CALCULATING ACTUAL CONTACT RATIO OF THERMOPLASTIC RESIN GEAR, METHOD FOR DERIVING COEFFICIENT OF FRICTION OF THERMOPLASTIC RESIN GEAR, METHOD FOR PREDICTING TOOTH ROOT TEMPERATURE OF THERMOPLASTIC RESIN GEAR, AND METHOD FOR PREDICTING SERVICE LIFE OF THERMOPLASTIC RESIN GEAR

#6 | 2025-04-24
US20250129232A1
Chemistry; metallurgy

RESIN COMPOSITION FOR LASER WELDING, COMPOSITE MOLDED BODY, AND METHOD FOR IMPROVING LASER BEAM TRANSMITTANCE OF RESIN COMPOSITION

#7 | 2025-03-27
US20250101222A1
Chemistry; metallurgy

RESIN COMPOSITION FOR LASER LIGHT TRANSMISSION-SIDE MOLDED ARTICLE, AND MOLDED ARTICLE THEREOF

#8 | 2025-03-20
US20250092221A1
Chemistry; metallurgy

FULLY AROMATIC ETHER KETONE RESIN COMPOSITION, MOLDED ARTICLE THEREOF, AND PHOSPHORUS STABILIZER

#9 | 2025-01-16
US20250019549A1
Chemistry; metallurgy

POWDERY MATERIAL FOR 3D PRINTER, THREE-DIMENSIONAL SHAPED OBJECT, AND PRODUCTION METHOD THEREFOR

#10 | 2024-11-14
US20240375359A1
Performing operations; transporting

LASER TRANSMISSIVE RESIN COMPOSITION AND MOLDED ARTICLE THEREOF

#11 | 2024-11-07
US20240368375A1
Chemistry; metallurgy

FULLY AROMATIC ETHER KETONE RESIN COMPOSITION, METHOD OF PRODUCING THE SAME, MOLDED ARTICLE, AND METHOD OF ENHANCING RETENTION STABILITY OF MELT VISCOSITY OF THE RESIN COMPOSITION

#12 | 2024-02-08 ✅ Patent 11,932,730 granted on 2024-03-19
US20240043620A1
Chemistry; metallurgy

Polyarylene sulfide resin composition, molded article, and optical ferrule

#13 | 2024-01-25
US20240026053A1
Chemistry; metallurgy

TRANSPARENT ARTICLE

#14 | 2023-11-23 ✅ Patent 11,891,504 granted on 2024-02-06
US20230374288A1
Chemistry; metallurgy

Polyacetal resin composition and automobile part

#15 | 2023-10-26
US20230340179A1
Chemistry; metallurgy

POLYACETAL COPOLYMER AND METHOD OF MANUFACTURING THE SAME

#16 | 2023-10-19 ✅ Patent 12,037,487 granted on 2024-07-16
US20230331977A1
Chemistry; metallurgy

Polyacetal resin composition and automobile part

#17 | 2023-08-10
US20230250255A1
Chemistry; metallurgy

THERMOPLASTIC RESIN COMPOSITION AND MEMBER, AND METHOD OF MANUFACTURING MEMBER FORMED FROM THERMOPLASTIC RESIN COMPOSITION AND METHOD OF ENHANCING MECHANICAL STRENGTH

#18 | 2023-08-03
US20230242762A1
Chemistry; metallurgy

METHOD OF SUPPRESSING BURR OF POLYARYLENE SULFIDE RESIN COMPOSITION

#19 | 2023-06-22 ✅ Patent 11,795,256 granted on 2023-10-24
US20230192930A1
Chemistry; metallurgy

Production method for cyclic olefin copolymer and catalyst composition for copolymerization of norbornene monomer and ethylene

#20 | 2023-04-06 ✅ Patent 12,043,737 granted on 2024-07-23
US20230109288A1
Chemistry; metallurgy

Vibration-damping molded article and method for producing resin composition for vibration-damping molded article

#21 | 2023-03-02
US20230069128A1
Chemistry; metallurgy

POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITION, MOLDED ARTICLE, THICKENING INHIBITOR FOR POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITIONS, AND HYDROLYSIS INHIBITOR FOR MOLDED ARTICLES FORMED FROM POLYBUTYLENE TEREPHTHALATE RESIN COMPOSITIONS

#22 | 2023-02-09 ✅ Patent 12,257,786 granted on 2025-03-25
US20230041838A1
Performing operations; transporting

Molded article for laser welding, and agent for suppressing variation in laser transmittance of molded article for laser welding

#23 | 2022-12-08 ✅ Patent 12,384,078 granted on 2025-08-12
US20220388208A1
Performing operations; transporting

CASING MEMBER FOR IN-VEHICLE CAMERA AND METHOD OF MANUFACTURING THE SAME

#24 | 2022-09-01 ✅ Patent 12,305,034 granted on 2025-05-20
US20220275196A1
Chemistry; metallurgy

Automobile interior component made from polyacetal resin

#25 | 2022-06-23
US20220195179A1
Chemistry; metallurgy

METHOD FOR IMPROVING ALKALINE SOLUTION RESISTANCE OF THERMOPLASTIC RESINS

#26 | 2022-04-21 ✅ Patent 12,139,601 granted on 2024-11-12
US20220119638A1
Chemistry; metallurgy

Method for improving tracking resistance of thermoplastic resin

#27 | 2022-03-24 ✅ Patent 11,661,511 granted on 2023-05-30
US20220089858A1
Chemistry; metallurgy

Production method of polyacetal resin composition

#28 | 2021-11-18 ✅ Patent 11,555,111 granted on 2023-01-17
US20210355314A1
Chemistry; metallurgy

Polyacetal resin composition

#29 | 2021-11-18 ✅ Patent 11,426,903 granted on 2022-08-30
US20210354342A1
Performing operations; transporting

Powdery liquid-crystal resin for press-molded article, press-molded article, and production method therefor

#30 | 2021-08-12 ✅ Patent 11,091,635 granted on 2021-08-17
US20210246311A1
Chemistry; metallurgy

Polyarylene sulfide-based resin composition and insert-molded product

#31 | 2021-07-08 ✅ Patent 11,158,471 granted on 2021-10-26
US20210210297A1
Electricity

Housing of electronic device, method of manufacturing housing of electronic device, and breaker having the same

#32 | 2021-06-10
US20210170696A1
Performing operations; transporting

LASER-WELDABLE AND LASER-MARKABLE MOLDED ARTICLE

#33 | 2021-06-03 ✅ Patent 11,607,868 granted on 2023-03-21
US20210162714A1
Performing operations; transporting

Ratchet stack

#34 | 2021-04-01 ✅ Patent 11,634,576 granted on 2023-04-25
US20210095112A1
Chemistry; metallurgy

Polyacetal resin composition

#35 | 2021-02-18 ✅ Patent 11,326,053 granted on 2022-05-10
US20210047511A1
Chemistry; metallurgy

Flame-retardant polybutylene terephthalate resin composition

#36 | 2020-11-12 ✅ Patent 11,401,414 granted on 2022-08-02
US20200354565A1
Chemistry; metallurgy

Flame-retardant poly(butylene terephthalate) resin composition

#37 | 2020-09-17 ✅ Patent 11,142,637 granted on 2021-10-12
US20200291223A1
Chemistry; metallurgy

Polyacetal resin composition

#38 | 2020-07-16 ✅ Patent 11,697,232 granted on 2023-07-11
US20200223113A1
Performing operations; transporting

Metal resin composite-molded article and method for manufacturing same

#39 | 2020-06-04 ✅ Patent 10,844,191 granted on 2020-11-24
US20200172699A1
Chemistry; metallurgy

Polyacetal resin composition

#40 | 2020-01-09 ✅ Patent 11,236,229 granted on 2022-02-01
US20200010668A1
Chemistry; metallurgy

Production method of thermoplastic aromatic polyester resin composition

#41 | 2019-10-24
US20190322867A1
Chemistry; metallurgy

POLY(ARYLENE SULFIDE) RESIN COMPOSITION AND INSERT-MOLDED ARTICLE

#42 | 2019-10-10 ✅ Patent 10,717,864 granted on 2020-07-21
US20190309158A1
Chemistry; metallurgy

Polyacetal resin composition for molding plate-shaped molded article, plate-shaped molded article, and carrier plate of window regulator

#43 | 2019-08-15 ✅ Patent 11,214,680 granted on 2022-01-04
US20190249003A1
Chemistry; metallurgy

Polybutylene terephthalate resin composition and molded article

#44 | 2019-08-08 ✅ Patent 10,577,496 granted on 2020-03-03
US20190241732A1
Chemistry; metallurgy

Process for producing polyacetal resin composition

#45 | 2019-01-08 ✅ Patent 10,174,270 granted on 2019-01-08
US15718390
Chemistry; metallurgy

Dust-resistant sliding member and method for producing same, window regulator carrier plate, and method for realizing dust-resistant slidability

#46 | 2019-01-03 ✅ Patent 10,927,255 granted on 2021-02-23
US20190002693A1
Chemistry; metallurgy

Polyarylene sulfide resin composition and insert molded article

#47 | 2018-12-06 ✅ Patent 10,577,498 granted on 2020-03-03
US20180346712A1
Chemistry; metallurgy

Polybutylene terephthalate resin composition

#48 | 2018-11-08 ✅ Patent 10,526,482 granted on 2020-01-07
US20180319976A1
Chemistry; metallurgy

Polybutylene terephthalate resin composition

#49 | 2018-10-04
US20180282650A1
Chemistry; metallurgy

Dust-resistant sliding member and method for producing same, window regulator carrier plate, and method for realizing dust-resistant slidability

#50 | 2018-04-19 ✅ Patent 10,494,748 granted on 2019-12-03
US20180105964A1
Textiles; paper

Thermal bond non-woven fabric containing cyclic olefin resin

#51 | 2018-02-08 ✅ Patent 9,969,875 granted on 2018-05-15
US20180037732A1
Chemistry; metallurgy

Polyacetal resin composition and sliding member

#52 | 2017-12-07 ✅ Patent 9,834,669 granted on 2017-12-05
US20170349742A1
Chemistry; metallurgy

Method for producing polyacetal resin composition

#53 | 2017-11-30 ✅ Patent 10,655,007 granted on 2020-05-19
US20170342260A1
Chemistry; metallurgy

Polyalkylene terephthalate resin composition

#54 | 2017-10-26 ✅ Patent 10,683,413 granted on 2020-06-16
US20170306141A1
Chemistry; metallurgy

Polyacetal resin composition and sliding member

#55 | 2017-10-26
US20170306140A1
Chemistry; metallurgy

POLYACETAL RESIN COMPOSITION AND SLIDING MEMBER

#56 | 2017-07-20 ✅ Patent 9,920,183 granted on 2018-03-20
US20170204247A1
Chemistry; metallurgy

Polyacetal resin composition and fuel contactor provided with molded article of the polyacetal resin composition

#57 | 2017-04-27 ✅ Patent 9,745,400 granted on 2017-08-29
US20170114176A1
Chemistry; metallurgy

Method for producing polyacetal copolymer

#58 | 2017-04-06
US20170096557A1
Chemistry; metallurgy

POLYARYLENE SULFIDE-DERIVED RESIN COMPOSITION AND INSERT MOLDED BODY

#59 | 2017-03-16 ✅ Patent 9,695,265 granted on 2017-07-04
US20170073451A1
Chemistry; metallurgy

Process for producing polyacetal copolymer

#60 | 2017-01-19 ✅ Patent 10,232,547 granted on 2019-03-19
US20170015047A1
Performing operations; transporting

Composite molded article and method for manufacturing same

#61 | 2016-09-29 ✅ Patent 10,017,643 granted on 2018-07-10
US20160280917A1
Chemistry; metallurgy

Corona-resistant resin composition, method for developing corona resistance of resin composition, and corona-resistant member

#62 | 2016-09-29 ✅ Patent 9,657,136 granted on 2017-05-23
US20160280852A1
Chemistry; metallurgy

Production method for polyacetal copolymer

#63 | 2016-08-18 ✅ Patent 10,738,166 granted on 2020-08-11
US20160237221A1
Chemistry; metallurgy

Method for producing polyoxymethylene resin composition

#64 | 2016-05-05 ✅ Patent 9,546,241 granted on 2017-01-17
US20160122459A1
Chemistry; metallurgy

Method for producing polyacetal copolymer

#65 | 2016-03-17 ✅ Patent 9,550,853 granted on 2017-01-24
US20160075815A1
Chemistry; metallurgy

Method for producing polyacetal copolymer

#66 | 2015-12-24 ✅ Patent 9,610,713 granted on 2017-04-04
US20150367538A1
Performing operations; transporting

Grooved resin molded part

#67 | 2015-10-22 ✅ Patent 9,695,293 granted on 2017-07-04
US20150299420A1
Chemistry; metallurgy

Corona-resistant member, corona-resistant resin composition, and method for developing corona resistance of resin molded article

#68 | 2015-09-17 ✅ Patent 9,340,652 granted on 2016-05-17
US20150259485A1
Chemistry; metallurgy

Transparent film

#69 | 2015-09-03
US20150247034A1
Chemistry; metallurgy

THERMOSETTING LIQUID-CRYSTAL POLYESTER COMPOSITION AND CURED PRODUCT THEREOF

#70 | 2015-06-18
US20150168603A1
Physics

LIGHT-REFLECTING COMPONENT AND METHOD FOR PRODUCING SAME

#71 | 2015-06-18 ✅ Patent 9,249,279 granted on 2016-02-02
US20150166768A1
Chemistry; metallurgy

Fuel resistant resin molded body

#72 | 2015-01-01 ✅ Patent 9,659,117 granted on 2017-05-23
US20150005916A1
Physics

Deformation state analysis method, resin molded article deformation improvement method, and resin molded article weight reduction method

#73 | 2014-09-11 ✅ Patent 9,029,496 granted on 2015-05-12
US20140256903A1
Chemistry; metallurgy

Liquid crystal polyester amide resin

#74 | 2014-02-06
US20140035200A1
Performing operations; transporting

METHOD FOR MANUFACTURING AN INJECTION-MOLDED ARTICLE

#75 | 2014-01-30
US20140031518A1
Performing operations; transporting

METHOD FOR MANUFACTURING AN INJECTION-MOLDED ARTICLE AND AN INJECTION-MOLDED ARTICLE

#76 | 2013-10-17 ✅ Patent 9,249,296 granted on 2016-02-02
US20130274390A1
Chemistry; metallurgy

Integrated molded product

#77 | 2013-10-10 ✅ Patent 8,967,207 granted on 2015-03-03
US20130263959A1
Mechanical engineering

Multi-layer cylindrical molded article

#78 | 2013-08-22
US20130217855A1
Performing operations; transporting

METHOD FOR MANUFACTURING A MOLD

#79 | 2013-07-11 ✅ Patent 11,124,602 granted on 2021-09-21
US20130177774A1
Chemistry; metallurgy

Method for adhering resin molded articles

#80 | 2012-09-20 ✅ Patent 8,852,707 granted on 2014-10-07
US20120237714A1
Performing operations; transporting

Polyarylene sulfide resin composition and insert-molded article

#81 | 2012-07-26
US20120190813A1
Chemistry; metallurgy

LIQUID-CRYSTAL POLYMER AND MOLDED ARTICLES

#82 | 2012-07-12
US20120175816A1
Performing operations; transporting

METHOD FOR MANUFACTURING AN INJECTION-MOLDED ARTICLE

#83 | 2011-09-01
US20110212660A1
Textiles; paper

CYCLIC OLEFIN-DERIVED RESIN FIBER AND CYCLIC OLEFIN-DERIVED RESIN NON-WOVEN FABRIC

#84 | 2011-04-14 ✅ Patent 8,272,879 granted on 2012-09-25
US20110086968A1
Chemistry; metallurgy

Planar connector

#85 | 2010-12-30 ✅ Patent 8,822,603 granted on 2014-09-02
US20100326698A1
Chemistry; metallurgy

Resinous material for covering electric wire, electric wire manufactured by using the resinous material for covering electric wire, and flame-retardant cable

#86 | 2010-12-09
US20100307627A1
Mechanical engineering

MULTI-LAYER CYLINDRICAL MOLDED ARTICLE

#87 | 2010-11-04 ✅ Patent 8,633,264 granted on 2014-01-21
US20100280156A1
Chemistry; metallurgy

Polyacetal resin composition

#88 | 2010-09-23 ✅ Patent 8,123,978 granted on 2012-02-28
US20100237284A1
Chemistry; metallurgy

Liquid crystalline polyester resin composition

#89 | 2010-09-09 ✅ Patent 8,895,668 granted on 2014-11-25
US20100225032A1
Chemistry; metallurgy

Cycloolefin resin composition

#90 | 2010-04-08
US20100087575A1
Chemistry; metallurgy

POLYACETAL RESIN COMPOSITION

#91 | 2010-02-04 ✅ Patent 8,529,824 granted on 2013-09-10
US20100028584A1
Performing operations; transporting

Method for manufacturing pressure-resistant container liner and liquid crystal resin liner

#92 | 2009-12-17 ✅ Patent 7,893,140 granted on 2011-02-22
US20090312466A1
Chemistry; metallurgy

Polyacetal resin composition

#93 | 2009-10-08 ✅ Patent 7,705,079 granted on 2010-04-27
US20090253843A1
Chemistry; metallurgy

Polyarylene sulfide resin composition

#94 | 2009-08-06 ✅ Patent 7,980,897 granted on 2011-07-19
US20090197471A1
Chemistry; metallurgy

Asymmetric electronic parts

#95 | 2009-06-25 ✅ Patent 8,063,163 granted on 2011-11-22
US20090163632A1
Chemistry; metallurgy

Cycloolefin copolymer

#96 | 2009-05-28
US20090137724A1
Chemistry; metallurgy

Thermoplastic Resin Composition

#97 | 2009-01-22 ✅ Patent 7,988,907 granted on 2011-08-02
US20090022918A1
Performing operations; transporting

Method for manufacturing pressure-resistant container liner and liquid crystal resin liner

#98 | 2009-01-15 ✅ Patent 8,063,127 granted on 2011-11-22
US20090018236A1
Chemistry; metallurgy

Antihazing agent for noncrystalline cycloolefin resins, resin compositions, and optical elements

#99 | 2008-11-20 ✅ Patent 7,776,410 granted on 2010-08-17
US20080286510A1
Chemistry; metallurgy

Resin composition for extrusion molding and extrusion-molded article

#100 | 2008-11-06
US20080271381A1
Chemistry; metallurgy

Method for manufacturing stabilized polyacetal resin, stabilized polyacetal resin, stabilized polyacetal resin composition, and molded article of stabilized polyacetal resin

Also check out POLYPLASTICS CO., LTD.'s (Tokyo, Japan) applicant profile with 60 patent applications submitted.

AssigneeID:

36087 ⎘