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Patents Grants
last 30 patents
Information
Patent Grant
Multi-component ionomer
Patent number
12,152,094
Issue date
Nov 26, 2024
Japan Polyethylene Corporation
Masahiro Uematsu
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polar group-containing olefin copolymer
Patent number
12,116,474
Issue date
Oct 15, 2024
Japan Polyethylene Corporation
Tomohiko Satou
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Catalyst for olefin polymerization and method for producing polar g...
Patent number
11,981,765
Issue date
May 14, 2024
The University of Tokyo
Kyoko Nozaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing α-olefin/(meth)acrylic acid ester copolymer
Patent number
11,739,171
Issue date
Aug 29, 2023
Japan Polyethylene Corporation
Yohei Konishi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing copolymer of allyl monomer having polar group
Patent number
11,697,698
Issue date
Jul 11, 2023
The University of Tokyo
Kyoko Nozaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Gas-barrier resin composition and use thereof
Patent number
11,655,360
Issue date
May 23, 2023
Showa Denko K.K.
Junichi Kuroda
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ethylene-based polymer, polyethylene-based resin composition and us...
Patent number
11,643,485
Issue date
May 9, 2023
JAPAN POLYETHYLENE CORPORATION
Yoshiyuki Ishihama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resin composition, pellet, composite molded article, method for man...
Patent number
11,597,827
Issue date
Mar 7, 2023
Mitsubishi Engineering-Plastics Corporation
Kunihiko Fujimoto
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Metallocene compound, catalyst component for olefin polymerization...
Patent number
11,485,808
Issue date
Nov 1, 2022
Japan Polyethylene Corporation
Tsutomu Sakuragi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Catalyst for olefin polymerization and production method for polar...
Patent number
11,352,453
Issue date
Jun 7, 2022
The University of Tokyo
Kyoko Nozaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Method for producing copolymer of polar group-containing allyl monomer
Patent number
11,248,074
Issue date
Feb 15, 2022
The University of Tokyo
Shingo Ito
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Multi-component polar olefin copolymer and method for producing the...
Patent number
11,168,166
Issue date
Nov 9, 2021
Japan Polyethylene Corporation
Minoru Kobayashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polar-group-containing olefin copolymer, polar-group-containing mul...
Patent number
11,084,957
Issue date
Aug 10, 2021
Japan Polyethylene Corporation
Masahiro Uematsu
B32 - LAYERED PRODUCTS
Information
Patent Grant
Metallocene compound, catalyst component for olefin polymerization...
Patent number
10,995,167
Issue date
May 4, 2021
Japan Polyethylene Corporation
Tsutomu Sakuragi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polar group-containing olefin copolymer, multinary polar olefin cop...
Patent number
10,975,182
Issue date
Apr 13, 2021
JAPAN POLYETHYLENE CORPORATION
Kazunari Abe
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Metallocene compound, catalyst component for olefin polymerization...
Patent number
10,919,994
Issue date
Feb 16, 2021
Japan Polyethylene Corporation
Tsutomu Sakuragi
C07 - ORGANIC CHEMISTRY
Information
Patent Grant
Production method of ethylene-based ionomer and ethylene-based ionomer
Patent number
10,717,855
Issue date
Jul 21, 2020
Japan Polyethylene Corporation
Takaaki Hattori
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ethylene-based polymer, polyethylene-based resin composition and us...
Patent number
10,633,471
Issue date
Apr 28, 2020
JAPAN POLYETHYLENE CORPORATION
Yoshiyuki Ishihama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Process for producing ethylene/unsaturated carboxylic acid copolyme...
Patent number
10,550,211
Issue date
Feb 4, 2020
Japan Polyethylene Corporation
Naomasa Sato
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyethylene for injection molding and molded article using same
Patent number
10,533,085
Issue date
Jan 14, 2020
JAPAN POLYETHYLENE CORPORATION
Kouichi Ogawa
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for producing polar group-containing olefin polymer
Patent number
10,414,837
Issue date
Sep 17, 2019
The University of Tokyo
Kyoko Nozaki
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyethylene for pipe and joint, and molded body thereof
Patent number
10,377,886
Issue date
Aug 13, 2019
JAPAN POLYETHYLENE CORPORATION
Tomomi Hiramoto
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Olefin polymerization catalyst and method for producing olefin polymer
Patent number
10,301,401
Issue date
May 28, 2019
Japan Polyethylene Corporation
Yohei Konishi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ethylene-based polymer, manufacturing method of ethylene-based poly...
Patent number
10,301,409
Issue date
May 28, 2019
Japan Polyethylene Corporation
Takashi Monoi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Olefin polymerization catalyst and method for producing olefin polymer
Patent number
10,259,891
Issue date
Apr 16, 2019
Japan Polyethylene Corporation
Yohei Konishi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Polyacetal resin composition, composite molding using the same, and...
Patent number
10,131,781
Issue date
Nov 20, 2018
MITSUBISHI ENGINEERING-PLASTICS CORPORATION
Ryusuke Yamada
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ethylene-α-olefin copolymer and olefin resin composition
Patent number
10,066,036
Issue date
Sep 4, 2018
Japan Polyethylene Corporation
Yoshiyuki Ishihama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Ethylene-α-olefin copolymer and olefin resin composition
Patent number
10,066,037
Issue date
Sep 4, 2018
Japan Polyethylene Corporation
Yoshiyuki Ishihama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Resin composition for solar cell encapsulant, and solar cell encaps...
Patent number
10,030,085
Issue date
Jul 24, 2018
Japan Polyethylene Corporation
Takahiro Amamiya
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Metallocene compound, catalyst for olefin polymer, method for produ...
Patent number
10,005,864
Issue date
Jun 26, 2018
Japan Polyethylene Corporation
Koji Itagaki
C07 - ORGANIC CHEMISTRY
Patents Applications
last 30 patents
Information
Patent Application
LAMINATE AND LAMINATE PRODUCTION METHOD
Publication number
20250010590
Publication date
Jan 9, 2025
JAPAN POLYETHYLENE CORPORATION
Chiaki KAWAMURA MASUMURA
B32 - LAYERED PRODUCTS
Information
Patent Application
PIPELINE MEMBER FOR ULTRAPURE WATER AND POLYETHYLENE-BASED RESIN CO...
Publication number
20230151223
Publication date
May 18, 2023
Sekisui Chemical Co., Ltd
Tomoki YAMADA
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
RESIN COMPOSITION FOR INJECTION MOLDING OR COMPRESSION MOLDING
Publication number
20220251268
Publication date
Aug 11, 2022
JAPAN POLYETHYLENE CORPORATION
Keiichi YOSHIMOTO
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POLYMER COMPOSITION FOR LAMINATION AND LAMINATED BODY USING SAME
Publication number
20220251430
Publication date
Aug 11, 2022
JAPAN POLYETHYLENE CORPORATION
Masahiro UENO
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
RESIN FOR FILM-SHAPED MOLDED BODY AND MOLDED PRODUCT COMPRISING SAME
Publication number
20220242981
Publication date
Aug 4, 2022
JAPAN POLYETHYLENE CORPORATION
Shin AOKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYAMIDE RESIN COMPOSITION COMPRISING SPECIFIC IONOMER
Publication number
20220169847
Publication date
Jun 2, 2022
JAPAN POLYETHYLENE CORPORATION
Kazunari ABE
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
MULTI-COMPONENT IONOMER
Publication number
20220135718
Publication date
May 5, 2022
JAPAN POLYETHYLENE CORPORATION
Masahiro UEMATSU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLAR GROUP-CONTAINING OLEFIN COPOLYMER
Publication number
20220106471
Publication date
Apr 7, 2022
JAPAN POLYETHYLENE CORPORATION
Tomohiko SATOU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
CATALYST FOR OLEFIN POLYMERIZATION AND METHOD FOR PRODUCING POLAR G...
Publication number
20220089791
Publication date
Mar 24, 2022
THE UNIVERSITY OF TOKYO
Kyoko NOZAKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
READILY TEARABLE CO-EXTRUDED MULTILAYER BARRIER FILM AND PACKAGING...
Publication number
20210316920
Publication date
Oct 14, 2021
JAPAN POLYETHYLENE CORPORATION
Kota ITO
B32 - LAYERED PRODUCTS
Information
Patent Application
RESIN COMPOSITION, PELLET, COMPOSITE MOLDED ARTICLE, METHOD FOR MAN...
Publication number
20210198466
Publication date
Jul 1, 2021
MITSUBISHI ENGINEERING-PLASTICS CORPORATION
Kunihiko FUJIMOTO
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
GAS-BARRIER RESIN COMPOSITION AND USE THEREOF
Publication number
20210147669
Publication date
May 20, 2021
SHOWA DENKO K.K.
Junichi KURODA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METALLOCENE COMPOUND, CATALYST COMPONENT FOR OLEFIN POLYMERIZATION...
Publication number
20210122856
Publication date
Apr 29, 2021
JAPAN POLYETHYLENE CORPORATION
Tsutomu SAKURAGI
C07 - ORGANIC CHEMISTRY
Information
Patent Application
METHOD FOR PRODUCING alpha-OLEFIN/(METH)ACRYLIC ACID ESTER COPOLYMER
Publication number
20210122853
Publication date
Apr 29, 2021
JAPAN POLYETHYLENE CORPORATION
Yohei KONISHI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
MULTI-COMPONENT, POLAR GROUP-CONTAINING OLEFIN COPOLYMER
Publication number
20210061980
Publication date
Mar 4, 2021
JAPAN POLYETHYLENE CORPORATION
Tomohiko SATOU
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING COPOLYMER OF POLAR GROUP-CONTAINING ALLYL MONOMER
Publication number
20210054117
Publication date
Feb 25, 2021
THE UNIVERSITY OF TOKYO
Shingo ITO
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
METHOD FOR PRODUCING COPOLYMER OF ALLYL MONOMER HAVING POLAR GROUP
Publication number
20210040251
Publication date
Feb 11, 2021
THE UNIVERSITY OF TOKYO
Kyoko NOZAKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
MULTI-COMPONENT POLAR OLEFIN COPOLYMER AND METHOD FOR PRODUCING THE...
Publication number
20200385502
Publication date
Dec 10, 2020
JAPAN POLYETHYLENE CORPORATION
Minoru KOBAYASHI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYETHYLENE RESIN COMPOSITION FOR LAMINATION, LAMINATE, AND LAMINA...
Publication number
20200354551
Publication date
Nov 12, 2020
JAPAN POLYETHYLENE CORPORATION
Chiaki MASUMURA
B32 - LAYERED PRODUCTS
Information
Patent Application
CATALYST FOR OLEFIN POLYMERIZATION AND PRODUCTION METHOD FOR POLAR...
Publication number
20200347159
Publication date
Nov 5, 2020
THE UNIVERSITY OF TOKYO
Kyoko NOZAKI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ETHYLENE-BASED POLYMER, POLYETHYLENE-BASED RESIN COMPOSITION AND US...
Publication number
20200031965
Publication date
Jan 30, 2020
JAPAN POLYETHYLENE CORPORATION
Yoshiyuki Ishihama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYETHYLENE AND MOLDED BODY THEREOF
Publication number
20190136021
Publication date
May 9, 2019
Japan Polyethylene Corporation
Kazuhiro KOBAYASHI
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
METALLOCENE COMPOUND, CATALYST COMPONENT FOR OLEFIN POLYMERIZATION...
Publication number
20190092887
Publication date
Mar 28, 2019
JAPAN POLYETHYLENE CORPORATION
Tsutomu SAKURAGI
C07 - ORGANIC CHEMISTRY
Information
Patent Application
POLAR-GROUP-CONTAINING OLEFIN COPOLYMER, POLAR-GROUP-CONTAINING MUL...
Publication number
20190092985
Publication date
Mar 28, 2019
JAPAN POLYETHYLENE CORPORATION
Masahiro UEMATSU
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
POLAR GROUP-CONTAINING OLEFIN COPOLYMER, MULTINARY POLAR OLEFIN COP...
Publication number
20190062473
Publication date
Feb 28, 2019
Japan Polyethylene Corporation
Kazunari Abe
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
POLYETHYLENE-BASED RESIN COMPOSITION FOR FOAMABLE LAMINATE, FOAMABL...
Publication number
20190062514
Publication date
Feb 28, 2019
Japan Polyethylene Corporation
Keiichi SASAKI
B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information
Patent Application
METALLOCENE COMPOUND, CATALYST COMPONENT FOR OLEFIN POLYMERIZATION...
Publication number
20190010265
Publication date
Jan 10, 2019
JAPAN POLYETHYLENE CORPORATION
Tsutomu SAKURAGI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
ETHYLENE-BASED POLYMER, POLYETHYLENE-BASED RESIN COMPOSITION AND US...
Publication number
20180237565
Publication date
Aug 23, 2018
JAPAN POLYETHYLENE CORPORATION
Yoshiyuki Ishihama
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
PROCESS FOR PRODUCING ETHYLENE/UNSATURATED CARBOXYLIC ACID COPOLYME...
Publication number
20180201704
Publication date
Jul 19, 2018
JAPAN POLYETHYLENE CORPORATION
Naomasa SATO
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
POLYETHYLENE FOR PIPE AND JOINT, AND MOLDED BODY THEREOF
Publication number
20180112070
Publication date
Apr 26, 2018
Japan Polyethylene Corporation
Tomomi HIRAMOTO
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
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