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Masayuki OKURA
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Tokyo, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Downhole tool member for hydrocarbon resource recovery
Patent number
10,626,694
Issue date
Apr 21, 2020
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Grant
Plug for well drilling provided with diametrically expandable annul...
Patent number
10,619,084
Issue date
Apr 14, 2020
Kureha Corporation
Masayuki Okura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Rubber member for downhole tools, downhole tool, and method for rec...
Patent number
10,414,851
Issue date
Sep 17, 2019
Kureha Corporation
Takeo Takahashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Degradable rubber member for downhole tools, degradable seal member...
Patent number
10,280,699
Issue date
May 7, 2019
Kureha Corporation
Takeo Takahashi
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Diameter-expandable annular degradable seal member for downhole too...
Patent number
10,208,559
Issue date
Feb 19, 2019
Kureha Corporation
Takeo Takahashi
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Grant
Poly-L-lactic acid solid-state extrusion molded article, method for...
Patent number
10,072,476
Issue date
Sep 11, 2018
Kureha Corporation
Masayuki Okura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Grant
Solidification- and extrusion-molded article of polyglycolic acid a...
Patent number
10,030,465
Issue date
Jul 24, 2018
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Member for hydrocarbon resource collection downhole tool
Patent number
10,030,464
Issue date
Jul 24, 2018
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Grant
Molded product having effective thickness of 1 mm or more and conta...
Patent number
9,926,764
Issue date
Mar 27, 2018
Kureha Corporation
Takuma Kobayashi
E21 - EARTH DRILLING MINING
Information
Patent Grant
Ball sealer for hydrocarbon resource recovery, method for manufactu...
Patent number
9,914,871
Issue date
Mar 13, 2018
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Well treatment method by disintegrating elastic material by contact...
Patent number
9,879,500
Issue date
Jan 30, 2018
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Grant
Plug for well drilling process provided with mandrel formed from de...
Patent number
9,714,551
Issue date
Jul 25, 2017
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Grant
Ball sealer for hydrocarbon resource collection as well as producti...
Patent number
9,644,453
Issue date
May 9, 2017
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Downhole tool member for hydrocarbon resource recovery
Patent number
9,574,418
Issue date
Feb 21, 2017
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Grant
Member for hydrocarbon resource collection downhole tool
Patent number
9,267,351
Issue date
Feb 23, 2016
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Grant
Coating solution, and gas barrier film, gas barrier laminate and ga...
Patent number
8,632,888
Issue date
Jan 21, 2014
Toppan Printing Co., Ltd.
Masayuki Okura
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Information
Patent Grant
Coating solution, and gas barrier film, gas barrier laminate and ga...
Patent number
7,807,272
Issue date
Oct 5, 2010
Kureha Corporation
Masayuki Okura
B05 - SPRAYING OR ATOMISING IN GENERAL APPLYING LIQUIDS OR OTHER FLUENT MATER...
Patents Applications
last 30 patents
Information
Patent Application
METHOD FOR PRODUCING RUBBER MEMBER FOR DOWNHOLE TOOL
Publication number
20190382520
Publication date
Dec 19, 2019
Kureha Corporation
TAKEO TAKAHASHI
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
STOCK SHAPE FOR DOWNHOLE TOOL COMPONENT, DOWNHOLE TOOL COMPONENT, A...
Publication number
20190017346
Publication date
Jan 17, 2019
Kureha Corporation
FUMINORI KOBAYASHI
B22 - CASTING POWDER METALLURGY
Information
Patent Application
DOWNHOLE TOOL MEMBER FOR HYDROCARBON RESOURCE RECOVERY
Publication number
20180298714
Publication date
Oct 18, 2018
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Application
SOLIDIFICATION- AND EXTRUSION-MOLDED ARTICLE OF POLYGLYCOLIC ACID A...
Publication number
20180291702
Publication date
Oct 11, 2018
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
SOLIDIFICATION- AND EXTRUSION-MOLDED ARTICLE OF POLYGLYCOLIC ACID A...
Publication number
20180222103
Publication date
Aug 9, 2018
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
COMPOSITION FOR WELL DRILLING COMPRISING REACTIVE METAL AND DEGRADA...
Publication number
20180187060
Publication date
Jul 5, 2018
Kureha Corporation
Masayuki OKURA
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
DOWNHOLE TOOL CONTAINING DOWNHOLE-TOOL MEMBER CONTAINING REACTIVE M...
Publication number
20170284167
Publication date
Oct 5, 2017
Kureha Corporation
Takeo TAKAHASHI
B32 - LAYERED PRODUCTS
Information
Patent Application
PLUG FOR WELL DRILLING PROVIDED WITH RING-SHAPED RATCHET STRUCTURE
Publication number
20170218720
Publication date
Aug 3, 2017
Kureha Corporation
TAKEO TAKAHASHI
E21 - EARTH DRILLING MINING
Information
Patent Application
MOLDED PRODUCT HAVING EFFECTIVE THICKNESS OF 1 mm OR MORE AND CONTA...
Publication number
20170175481
Publication date
Jun 22, 2017
Kureha Corporation
Takuma KOBAYASHI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PLUG FOR WELL DRILLING PROVIDED WITH DIAMETRICALLY EXPANDABLE ANNUL...
Publication number
20170158942
Publication date
Jun 8, 2017
Kureha Corporation
MASAYUKI OKURA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
WELL TREATMENT METHOD BY DISINTEGRATING ELASTIC MATERIAL BY CONTACT...
Publication number
20170015900
Publication date
Jan 19, 2017
Kureha Corporation
MASAYUKI OKURA
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
DEGRADABLE RUBBER MEMBER FOR DOWNHOLE TOOLS, DEGRADABLE SEAL MEMBER...
Publication number
20170016298
Publication date
Jan 19, 2017
Kureha Corporation
TAKEO TAKAHASHI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
BALL SEALER FOR HYDROCARBON RESOURCE RECOVERY, METHOD FOR MANUFACTU...
Publication number
20160312111
Publication date
Oct 27, 2016
Kureha Corporation
Masayuki Okura
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
TEMPORARY PLUGGING AGENT FOR WELL DRILLING
Publication number
20160298017
Publication date
Oct 13, 2016
Kureha Corporation
TAKEO TAKAHASHI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
DIAMETER-EXPANDABLE ANNULAR DEGRADABLE SEAL MEMBER FOR DOWNHOLE TOO...
Publication number
20160298415
Publication date
Oct 13, 2016
Kureha Corporation
TAKEO TAKAHASHI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
PLUG FOR WELL DRILLING PROVIDED WITH RING-SHAPED RATCHET STRUCTURE
Publication number
20160298407
Publication date
Oct 13, 2016
KUREHA CORPORATION
TAKEO TAKAHASHI
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...
Information
Patent Application
DOWNHOLE TOOL OR DOWNHOLE TOOL MEMBER, DEGRADABLE RESIN COMPOSITION...
Publication number
20160290083
Publication date
Oct 6, 2016
Kureha Corporation
TAKEO TAKAHASHI
E21 - EARTH DRILLING MINING
Information
Patent Application
DEGRADABLE SEAL MEMBER FOR DOWNHOLE TOOLS, DOWNHOLE TOOL, AND METHO...
Publication number
20160290091
Publication date
Oct 6, 2016
KUREHA CORPORATION
TAKEO TAKAHASHI
E21 - EARTH DRILLING MINING
Information
Patent Application
PLUG FOR WELL DRILLING
Publication number
20160237774
Publication date
Aug 18, 2016
KUREHA CORPORATION
MASAYUKI OKURA
E21 - EARTH DRILLING MINING
Information
Patent Application
MEMBER FOR HYDROCARBON RESOURCE COLLECTION DOWNHOLE TOOL
Publication number
20160108696
Publication date
Apr 21, 2016
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Application
RUBBER MEMBER FOR DOWNHOLE TOOLS, DOWNHOLE TOOL, AND METHOD FOR REC...
Publication number
20160108165
Publication date
Apr 21, 2016
Kureha Corporation
TAKEO TAKAHASHI
E21 - EARTH DRILLING MINING
Information
Patent Application
A PLUG FOR WELL DRILLING PROCESS PROVIDED WITH MANDREL FORMED FROM...
Publication number
20160108695
Publication date
Apr 21, 2016
Kureha Corporation
MASAYUKI OKURA
E21 - EARTH DRILLING MINING
Information
Patent Application
POLY-L-LACTIC ACID SOLID-STATE EXTRUSION MOLDED ARTICLE, METHOD FOR...
Publication number
20150354311
Publication date
Dec 10, 2015
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
DOWNHOLE TOOL MEMBER FOR HYDROCARBON RESOURCE RECOVERY
Publication number
20150292292
Publication date
Oct 15, 2015
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Application
SOLIDIFICATION- AND EXTRUSION-MOLDED ARTICLE OF POLYGLYCOLIC ACID A...
Publication number
20150290858
Publication date
Oct 15, 2015
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
SOLIDIFICATION- AND EXTRUSION-MOLDED ARTICLE OF POLYGLYCOLIC ACID A...
Publication number
20150252646
Publication date
Sep 10, 2015
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
BALL SEALER FOR HYDROCARBON RESOURCE COLLECTION AS WELL AS PRODUCTI...
Publication number
20150144348
Publication date
May 28, 2015
Kureha Corporation
Masayuki Okura
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
MEMBER FOR HYDROCARBON RESOURCE COLLECTION DOWNHOLE TOOL
Publication number
20150096741
Publication date
Apr 9, 2015
Kureha Corporation
Masayuki Okura
E21 - EARTH DRILLING MINING
Information
Patent Application
Coating Solution, and Gas Barrier Film, Gas Barrier Laminate and Ga...
Publication number
20090098399
Publication date
Apr 16, 2009
Kureha Corporation
Masayuki Okura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...
Information
Patent Application
Coating Solution, and Gas Barrier Film, Gas Barrier Laminate and Ga...
Publication number
20090087676
Publication date
Apr 2, 2009
Kureha Corporation
Masayuki Okura
C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...