Masahiko Okamoto

Person

Chiba-shi, JP

People

Patents Grantslast 30 patents

Information Patent Grant
Cyclic olefin-based copolymer, cyclic olefin-based copolymer compos...
- Patent number 12,240,930
- Issue date Mar 4, 2025
- Mitsui Chemicals, Inc.
- Hideki Wasa
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Adhesive resin compositions and laminates
- Patent number 12,168,738
- Issue date Dec 17, 2024
- Mitsui Chemicals, Inc.
- Akihiko Iwashita
- B32 - LAYERED PRODUCTS
Information Patent Grant
Resin composition containing 4-methyl-1-pentene copolymer, and film...
- Patent number 12,091,536
- Issue date Sep 17, 2024
- Mitsui Chemicals, Inc.
- Hisanori Hashimoto
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Cyclic olefin-based copolymer, cyclic olefin-based copolymer compos...
- Patent number 11,732,075
- Issue date Aug 22, 2023
- Mitsui Chemicals, Inc.
- Hideki Wasa
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
4-methyl-1-pentene polymer, resin composition and molded article
- Patent number 11,248,069
- Issue date Feb 15, 2022
- Mitsui Chemicals, Inc.
- Masakazu Tanaka
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Grant
Polyester sheet
- Patent number 10,870,738
- Issue date Dec 22, 2020
- Mitsui Chemicals, Inc.
- Masakazu Tanaka
- G02 - OPTICS
Information Patent Grant
4-methyl-1-pentene/α-olefin copolymer, composition comprising the c...
- Patent number 10,662,270
- Issue date May 26, 2020
- Mitsui Chemicals, Inc.
- Takayuki Uekusa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
4-methyl-1-pentene (co)polymer composition, and film and hollow mol...
- Patent number 9,902,847
- Issue date Feb 27, 2018
- Mitsui Chemicals, Inc.
- Hirokazu Tanaka
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
4-methyl-1-pentene/α-olefin copolymer, composition comprising the c...
- Patent number 9,725,540
- Issue date Aug 8, 2017
- Mitsui Chemicals, Inc.
- Takayuki Uekusa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Catalyst for olefin polymerization, method for producing olefin pol...
- Patent number 9,382,356
- Issue date Jul 5, 2016
- Mitsui Chemicals, Inc.
- Yasushi Tohi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Propylene-based copolymer, propylene-based copolymer composition, m...
- Patent number 9,023,906
- Issue date May 5, 2015
- Mitsui Chemicals, Inc.
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Propylene-based polymer composition, use thereof, and method for pr...
- Patent number 8,802,779
- Issue date Aug 12, 2014
- Mitsui Chemicals, Inc.
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Material for vibration control, article for vibration control and m...
- Patent number 8,329,825
- Issue date Dec 11, 2012
- Mitsui Chemicals, Inc.
- Ryoji Mori
- B32 - LAYERED PRODUCTS
Information Patent Grant
Ethylene polymer and use thereof
- Patent number 8,129,489
- Issue date Mar 6, 2012
- Mitsui Chemicals, Inc.
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Polyolefin composition
- Patent number 8,008,401
- Issue date Aug 30, 2011
- Mitsui Chemicals, Inc.
- Yuichi Ito
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Process for producing propylene polymer
- Patent number 7,879,960
- Issue date Feb 1, 2011
- Mitsui Chemicals, Inc.
- Munehito Funaya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
α-olefin-based polymer composition, molded product formed from the...
- Patent number 7,847,040
- Issue date Dec 7, 2010
- Mitsu Chemicals, Inc.
- Ryoji Mori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Grant
Ethylene polymer and application thereof to moldings
- Patent number 7,700,708
- Issue date Apr 20, 2010
- Mitsui Chemicals, Inc.
- Mamoru Takahashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
CYCLIC OLEFIN-BASED COPOLYMER, CYCLIC OLEFIN-BASED COPOLYMER COMPOS...
- Publication number 20230159684
- Publication date May 25, 2023
- Mitsui Chemicals, Inc.
- Hideki WASA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
ADHESIVE RESIN COMPOSITIONS AND LAMINATES
- Publication number 20220081598
- Publication date Mar 17, 2022
- Mitsui Chemicals, Inc.
- Akihiko IWASHITA
- C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information Patent Application
4-METHYL-1-PENTENE/alpha-OLEFIN COPOLYMER, COMPOSITION COMPRISING T...
- Publication number 20220073659
- Publication date Mar 10, 2022
- Mitsui Chemicals, Inc.
- Takayuki UEKUSA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
RESIN COMPOSITION CONTAINING 4-METHYL-1-PENTENE COPOLYMER, AND FILM...
- Publication number 20220041847
- Publication date Feb 10, 2022
- Mitsui Chemicals, Inc.
- Hisanori HASHIMOTO
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CYCLIC OLEFIN-BASED RESIN COMPOSITION, MOLDED PRODUCT AND OPTICAL C...
- Publication number 20220033598
- Publication date Feb 3, 2022
- Mitsui Chemicals, Inc.
- Mikiko NOGUCHI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CYCLIC OLEFIN-BASED COPOLYMER, CYCLIC OLEFIN-BASED COPOLYMER COMPOS...
- Publication number 20200369812
- Publication date Nov 26, 2020
- Mitsui Chemicals, Inc.
- Hideki WASA
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Application
4-METHYL-1-PENTENE/alpha-OLEFIN COPOLYMER, COMPOSITION COMPRISING T...
- Publication number 20200247925
- Publication date Aug 6, 2020
- Mitsui Chemicals, Inc.
- Takayuki UEKUSA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
POLYESTER SHEET
- Publication number 20200071475
- Publication date Mar 5, 2020
- Mitsui Chemicals, Inc.
- Masakazu TANAKA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
GRAFT COPOLYMER-CONTAINING SOLID PRODUCT AND USE THEREOF
- Publication number 20200071443
- Publication date Mar 5, 2020
- Mitsui Chemicals, Inc.
- Akihide MORI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
4-METHYL-1-PENTENE POLYMER, RESIN COMPOSITION AND MOLDED ARTICLE
- Publication number 20190048109
- Publication date Feb 14, 2019
- Mitsui Chemicals, Inc.
- Masakazu TANAKA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
4-METHYL-1-PENTENE/a-OLEFIN COPOLYMER, COMPOSITION COMPRISING THE C...
- Publication number 20170298160
- Publication date Oct 19, 2017
- Mitsui Chemicals, Inc.
- Takayuki UEKUSA
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
CATALYST FOR OLEFIN POLYMERIZATION, METHOD FOR PRODUCING OLEFIN POL...
- Publication number 20160280819
- Publication date Sep 29, 2016
- Mitsui Chemicals, Inc.
- Yasushi TOHI
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
4-METHYL-1-PENTENE (CO)POLYMER COMPOSITION, AND FILM AND HOLLOW MOL...
- Publication number 20140342111
- Publication date Nov 20, 2014
- Hirokazu Tanaka
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
PROPYLENE-BASED COPOLYMER, PROPYLENE-BASED COPOLYMER COMPOSITION, M...
- Publication number 20140088214
- Publication date Mar 27, 2014
- Mitsui Chemicals, Inc.
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
4-METHYL-1-PENTENE/a-OLEFIN COPOLYMER, COMPOSITION COMPRISING THE C...
- Publication number 20120220728
- Publication date Aug 30, 2012
- Mitsui Chemicals ,Inc.
- Takayuki Uekusa
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Ethylenic Resin and Blow Molded Article Obtained Therefrom
- Publication number 20100227098
- Publication date Sep 9, 2010
- Mitsui Chemicals, Inc.
- Keiko Fukushi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
PROCESS FOR PRODUCING SYNDIOTACTIC PROPYLENE POLYMER
- Publication number 20100048820
- Publication date Feb 25, 2010
- Mitsui Chemicals, Inc.
- Yasuyuki Soeda
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polyolefin composition
- Publication number 20100004401
- Publication date Jan 7, 2010
- MITSUI CHEMICALS, INC.
- Yuichi Ito
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Material for Vibration Control, Article for Vibration Control and M...
- Publication number 20090162633
- Publication date Jun 25, 2009
- Mitsui Chemicals, Inc.
- Ryoji Mori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Environmental Stress Cracking Resistance Improver, and Resin Compos...
- Publication number 20090036584
- Publication date Feb 5, 2009
- Mitsui Chemicals, Inc.
- Keiko Fukushi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Ethylenic Polymer and Molded Article Obtained Therefrom
- Publication number 20090018299
- Publication date Jan 15, 2009
- Mitsui Chemicals, Inc.
- Tsutomu Tasaki
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Catalyst for olefin polymerization, method for producing olefin pol...
- Publication number 20080220193
- Publication date Sep 11, 2008
- Mitsui Chemicals, Inc.
- Yasushi Tohi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Process for Producing Propylene Polymer
- Publication number 20080097055
- Publication date Apr 24, 2008
- Munehito Funaya
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Propylene-based polymer composition, use thereof, and method for pr...
- Publication number 20080085977
- Publication date Apr 10, 2008
- Mitsui Chemicals, Inc.
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Ethylene Polymer and Use Thereof
- Publication number 20070244286
- Publication date Oct 18, 2007
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Alpha-Olefin-Based Polymer Composition, Molded Product Formed From...
- Publication number 20070225431
- Publication date Sep 27, 2007
- MITSUI CHEMICALS, INC.,
- Ryoji Mori
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Polypropylene based monolayer film and use thereof
- Publication number 20070184225
- Publication date Aug 9, 2007
- Mitsui Chemicals, Inc.
- Masahiko Okamoto
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information Patent Application
Ethylene polymer and application thereof to moldings
- Publication number 20060189775
- Publication date Aug 24, 2006
- Mamoru Takahashi
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Masahiko Okamoto

Person

Patents Grantslast 30 patents

Cyclic olefin-based copolymer, cyclic olefin-based copolymer compos...

Adhesive resin compositions and laminates

Resin composition containing 4-methyl-1-pentene copolymer, and film...

Cyclic olefin-based copolymer, cyclic olefin-based copolymer compos...

4-methyl-1-pentene polymer, resin composition and molded article

Polyester sheet

4-methyl-1-pentene/α-olefin copolymer, composition comprising the c...

4-methyl-1-pentene (co)polymer composition, and film and hollow mol...

4-methyl-1-pentene/α-olefin copolymer, composition comprising the c...

Catalyst for olefin polymerization, method for producing olefin pol...

Propylene-based copolymer, propylene-based copolymer composition, m...

Propylene-based polymer composition, use thereof, and method for pr...

Material for vibration control, article for vibration control and m...

Ethylene polymer and use thereof

Polyolefin composition

Process for producing propylene polymer

α-olefin-based polymer composition, molded product formed from the...

Ethylene polymer and application thereof to moldings

Patents Applicationslast 30 patents

CYCLIC OLEFIN-BASED COPOLYMER, CYCLIC OLEFIN-BASED COPOLYMER COMPOS...

ADHESIVE RESIN COMPOSITIONS AND LAMINATES

4-METHYL-1-PENTENE/alpha-OLEFIN COPOLYMER, COMPOSITION COMPRISING T...

RESIN COMPOSITION CONTAINING 4-METHYL-1-PENTENE COPOLYMER, AND FILM...

CYCLIC OLEFIN-BASED RESIN COMPOSITION, MOLDED PRODUCT AND OPTICAL C...

CYCLIC OLEFIN-BASED COPOLYMER, CYCLIC OLEFIN-BASED COPOLYMER COMPOS...

4-METHYL-1-PENTENE/alpha-OLEFIN COPOLYMER, COMPOSITION COMPRISING T...

POLYESTER SHEET

GRAFT COPOLYMER-CONTAINING SOLID PRODUCT AND USE THEREOF

4-METHYL-1-PENTENE POLYMER, RESIN COMPOSITION AND MOLDED ARTICLE

4-METHYL-1-PENTENE/a-OLEFIN COPOLYMER, COMPOSITION COMPRISING THE C...

CATALYST FOR OLEFIN POLYMERIZATION, METHOD FOR PRODUCING OLEFIN POL...

4-METHYL-1-PENTENE (CO)POLYMER COMPOSITION, AND FILM AND HOLLOW MOL...

PROPYLENE-BASED COPOLYMER, PROPYLENE-BASED COPOLYMER COMPOSITION, M...

4-METHYL-1-PENTENE/a-OLEFIN COPOLYMER, COMPOSITION COMPRISING THE C...

Ethylenic Resin and Blow Molded Article Obtained Therefrom

PROCESS FOR PRODUCING SYNDIOTACTIC PROPYLENE POLYMER

Polyolefin composition

Material for Vibration Control, Article for Vibration Control and M...

Environmental Stress Cracking Resistance Improver, and Resin Compos...

Ethylenic Polymer and Molded Article Obtained Therefrom

Catalyst for olefin polymerization, method for producing olefin pol...

Process for Producing Propylene Polymer

Propylene-based polymer composition, use thereof, and method for pr...

Ethylene Polymer and Use Thereof

Alpha-Olefin-Based Polymer Composition, Molded Product Formed From...

Polypropylene based monolayer film and use thereof

Ethylene polymer and application thereof to moldings