Okura; Masayuki

Patent Applications and Registrations

Patent applications and USPTO patent grants for Okura; Masayuki.The latest application filed is for "method for producing rubber member for downhole tool".

Company Profile

5.20.31

Okura; Masayuki - Tokyo JP
Okura; Masayuki - Chuo-ku N/A JP
Okura; Masayuki - Ibaraki JP

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Stock shape for downhole tool component, downhole tool component, and downhole tool Grant 10,738,561 - Kobayashi , et al. A	2020-08-11
Downhole tool member for hydrocarbon resource recovery Grant 10,626,694 - Okura , et al.	2020-04-21
Plug for well drilling provided with diametrically expandable annular rubber member formed from degradable rubber material Grant 10,619,084 - Okura , et al.	2020-04-14
Method For Producing Rubber Member For Downhole Tool App 20190382520 - TAKAHASHI; Takeo ; et al.	2019-12-19
Rubber member for downhole tools, downhole tool, and method for recovering hydrocarbon resource Grant 10,414,851 - Takahashi , et al. Sept	2019-09-17
Degradable rubber member for downhole tools, degradable seal member, degradable protecting member, downhole tool, and method for well drilling Grant 10,280,699 - Takahashi , et al.	2019-05-07
Diameter-expandable annular degradable seal member for downhole tool, plug for well drilling, and method for well drilling Grant 10,208,559 - Takahashi , et al. Feb	2019-02-19
Stock Shape For Downhole Tool Component, Downhole Tool Component, And Downhole Tool App 20190017346 - KOBAYASHI; FUMINORI ; et al.	2019-01-17
Downhole Tool Member For Hydrocarbon Resource Recovery App 20180298714 - OKURA; Masayuki ; et al.	2018-10-18
Solidification- And Extrusion-molded Article Of Polyglycolic Acid And Method For Manufacturing Same App 20180291702 - Okura; Masayuki ; et al.	2018-10-11
Poly-L-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the same Grant 10,072,476 - Okura , et al. September 11, 2	2018-09-11
Solidification- And Extrusion-molded Article Of Polyglycolic Acid And Method For Manufacturing Same App 20180222103 - OKURA; Masayuki ; et al.	2018-08-09
Member for hydrocarbon resource collection downhole tool Grant 10,030,464 - Okura , et al. July 24, 2	2018-07-24
Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing same Grant 10,030,465 - Okura , et al. July 24, 2	2018-07-24
Composition For Well Drilling Comprising Reactive Metal And Degradable Resin Composition, Molded Product For Well Drilling, And Method For Well Drilling App 20180187060 - OKURA; Masayuki ; et al.	2018-07-05
Molded product having effective thickness of 1 mm or more and containing aliphatic polyester resin, and downhole tool member for hydrocarbon resource recovery Grant 9,926,764 - Kobayashi , et al. March 27, 2	2018-03-27
Ball sealer for hydrocarbon resource recovery, method for manufacturing same, and method for treating borehole using same Grant 9,914,871 - Okura , et al. March 13, 2	2018-03-13
Well treatment method by disintegrating elastic material by contacting seal member for downhole tools comprising elastic material with well treatment fluid Grant 9,879,500 - Okura , et al. January 30, 2	2018-01-30
Downhole Tool Containing Downhole-tool Member Containing Reactive Metal And Downhole-tool Member Containing Degradable Resin Composition, And Well-drilling Method App 20170284167 - TAKAHASHI; Takeo ; et al.	2017-10-05
Plug For Well Drilling Provided With Ring-shaped Ratchet Structure App 20170218720 - TAKAHASHI; Takeo ; et al.	2017-08-03
Plug for well drilling process provided with mandrel formed from degradable material Grant 9,714,551 - Okura , et al. July 25, 2	2017-07-25
MOLDED PRODUCT HAVING EFFECTIVE THICKNESS OF 1 mm OR MORE AND CONTAINING ALIPHATIC POLYESTER RESIN, AND DOWNHOLE TOOL MEMBER FOR HYDROCARBON RESOURCE RECOVERY App 20170175481 - KOBAYASHI; Takuma ; et al.	2017-06-22
Plug For Well Drilling Provided With Diametrically Expandable Annular Rubber Member Formed From Degradable Rubber Material App 20170158942 - OKURA; Masayuki ; et al.	2017-06-08
Ball sealer for hydrocarbon resource collection as well as production method therefor and downhole treatment method using same Grant 9,644,453 - Okura , et al. May 9, 2	2017-05-09
Downhole tool member for hydrocarbon resource recovery Grant 9,574,418 - Okura , et al. February 21, 2	2017-02-21
Well Treatment Method By Disintegrating Elastic Material By Contacting Seal Member For Downhole Tools Comprising Elastic Material With Well Treatment Fluid App 20170015900 - OKURA; MASAYUKI ; et al.	2017-01-19
Degradable Rubber Member For Downhole Tools, Degradable Seal Member, Degradable Protecting Member, Downhole Tool, And Method For Well Drilling App 20170016298 - TAKAHASHI; TAKEO ; et al.	2017-01-19
Ball Sealer For Hydrocarbon Resource Recovery, Method For Manufacturing Same, And Method For Treating Borehole Using Same App 20160312111 - Okura; Masayuki ; et al.	2016-10-27
Temporary Plugging Agent For Well Drilling App 20160298017 - TAKAHASHI; TAKEO ; et al.	2016-10-13
Diameter-expandable Annular Degradable Seal Member For Downhole Tool, Plug For Well Drilling, And Method For Well Drilling App 20160298415 - TAKAHASHI; TAKEO ; et al.	2016-10-13
Plug For Well Drilling Provided With Ring-shaped Ratchet Structure App 20160298407 - TAKAHASHI; TAKEO ; et al.	2016-10-13
Downhole Tool Or Downhole Tool Member, Degradable Resin Composition, And Method For Recovering Hydrocarbon Resource App 20160290083 - TAKAHASHI; TAKEO ; et al.	2016-10-06
Degradable Seal Member For Downhole Tools, Downhole Tool, And Method Of Well Drilling And Completion App 20160290091 - TAKAHASHI; TAKEO ; et al.	2016-10-06
Plug For Well Drilling App 20160237774 - OKURA; MASAYUKI ; et al.	2016-08-18
Rubber Member For Downhole Tools, Downhole Tool, And Method For Recovering Hydrocarbon Resource App 20160108165 - TAKAHASHI; TAKEO ; et al.	2016-04-21
Member For Hydrocarbon Resource Collection Downhole Tool App 20160108696 - OKURA; Masayuki ; et al.	2016-04-21
A Plug For Well Drilling Process Provided With Mandrel Formed From Degradable Material App 20160108695 - OKURA; MASAYUKI ; et al.	2016-04-21
Member for hydrocarbon resource collection downhole tool Grant 9,267,351 - Okura , et al. February 23, 2	2016-02-23
Poly-l-lactic Acid Solid-state Extrusion Molded Article, Method For Producing The Same, And Use Applications Of The Same App 20150354311 - OKURA; Masayuki ; et al.	2015-12-10
Downhole Tool Member For Hydrocarbon Resource Recovery App 20150292292 - Okura; Masayuki ; et al.	2015-10-15
Solidification- And Extrusion-molded Article Of Polyglycolic Acid And Method For Manufacturing Same App 20150290858 - Okura; Masayuki ; et al.	2015-10-15
Solidification- And Extrusion-molded Article Of Polyglycolic Acid And Method For Manufacturing Same App 20150252646 - Okura; Masayuki ; et al.	2015-09-10
Ball Sealer For Hydrocarbon Resource Collection As Well As Production Method Therefor And Downhole Treatment Method Using Same App 20150144348 - Okura; Masayuki ; et al.	2015-05-28
Member For Hydrocarbon Resource Collection Downhole Tool App 20150096741 - Okura; Masayuki ; et al.	2015-04-09
Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methods Grant 8,632,888 - Okura , et al. January 21, 2	2014-01-21
Aqueous polymerizable monomer composition, gas barrier film and production process of the film Grant 8,158,213 - Inaba , et al. April 17, 2	2012-04-17
Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methods Grant 7,807,272 - Okura , et al. October 5, 2	2010-10-05
Coating Solution, and Gas Barrier Film, Gas Barrier Laminate and Gas Barrier Multilayer Film, Using the Coating Solution, and Their Manufacturing Methods App 20090098399 - Okura; Masayuki ; et al.	2009-04-16
Coating Solution, and Gas Barrier Film, Gas Barrier Laminate and Gas Barrier Multilayer Film, Using the Coating Solution, and their Manufacturing Methods App 20090087676 - Okura; Masayuki ; et al.	2009-04-02
Aqueous Polymerizable Monomer Composition, Gas Barrier Film And Production Process Of The Film App 20080090018 - Inaba; Yusaku ; et al.	2008-04-17

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