Inventor · disambiguated record
Masayuki Okura
Also filed as: OKURA MASAYUKI
19 granted patents·12 pending applications·74 citations·filing 2005–2019
92Inventor score
Top patents by PatentIndex Score
31 records- 0195US9714551B2Plug for well drilling process provided with mandrel formed from degradable materialKUREHA CORP·Filed 2014·Granted Jul 25, 2017·25 cites·31 claims
- 0289US10738561B2Stock shape for downhole tool component, downhole tool component, and downhole toolKUREHA CORP·Filed 2016·Granted Aug 11, 2020·6 cites·21 claims
- 0388US10280699B2Degradable rubber member for downhole tools, degradable seal member, degradable protecting member, downhole tool, and method for well drillingKUREHA CORP·Filed 2015·Granted May 7, 2019·4 cites·15 claims
- 0488US9267351B2Member for hydrocarbon resource collection downhole toolKUREHA CORP·Filed 2013·Granted Feb 23, 2016·9 cites·20 claims
- 0586US10208559B2Diameter-expandable annular degradable seal member for downhole tool, plug for well drilling, and method for well drillingKUREHA CORP·Filed 2014·Granted Feb 19, 2019·9 cites·20 claims
- 0684US9574418B2Downhole tool member for hydrocarbon resource recoveryKUREHA CORP·Filed 2013·Granted Feb 21, 2017·3 cites·14 claims
- 0781US9879500B2Well treatment method by disintegrating elastic material by contacting seal member for downhole tools comprising elastic material with well treatment fluidKUREHA CORP·Filed 2015·Granted Jan 30, 2018·2 cites·9 claims
- 0879US7807272B2Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methodsKUREHA CORP·Filed 2007·Granted Oct 5, 2010·4 cites·9 claims
- 0978US10619084B2Plug for well drilling provided with diametrically expandable annular rubber member formed from degradable rubber materialKUREHA CORP·Filed 2014·Granted Apr 14, 2020·5 cites·17 claims
- 1073US10030465B2Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing sameKUREHA CORP·Filed 2013·Granted Jul 24, 2018·3 cites·9 claims
- 1170US9914871B2Ball sealer for hydrocarbon resource recovery, method for manufacturing same, and method for treating borehole using sameKUREHA CORP·Filed 2014·Granted Mar 13, 2018·1 cites·11 claims
- 1270US2019382520A1Method for producing rubber member for downhole toolKUREHA CORP·Filed 2019·Application pending·0 cites
- 1367US10072476B2Poly-L-lactic acid solid-state extrusion molded article, method for producing the same, and use applications of the sameKUREHA CORP·Filed 2014·Granted Sep 11, 2018·1 cites·18 claims
- 1465US2018291702A1Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing sameKUREHA CORP·Filed 2018·Application pending·0 cites
- 1564US9644453B2Ball sealer for hydrocarbon resource collection as well as production method therefor and downhole treatment method using sameKUREHA CORP·Filed 2013·Granted May 9, 2017·2 cites·4 claims
- 1664US2018222103A1Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing sameKUREHA CORP·Filed 2018·Application pending·0 cites
- 1762US2015290858A1Solidification- and extrusion-molded article of polyglycolic acid and method for manufacturing sameKUREHA CORP·Filed 2013·Application pending·0 cites
- 1859US10626694B2Downhole tool member for hydrocarbon resource recoveryKUREHA CORP·Filed 2018·Granted Apr 21, 2020·0 cites·1 claims
- 1954US10030464B2Member for hydrocarbon resource collection downhole toolKUREHA CORP·Filed 2015·Granted Jul 24, 2018·0 cites·27 claims
- 2053US10414851B2Rubber member for downhole tools, downhole tool, and method for recovering hydrocarbon resourceKUREHA CORP·Filed 2015·Granted Sep 17, 2019·0 cites·6 claims
- 2153US8632888B2Coating solution, and gas barrier film, gas barrier laminate and gas barrier multilayer film, using the coating solution, and their manufacturing methodsOKURA MASAYUKI·Filed 2007·Granted Jan 21, 2014·0 cites·9 claims
- 2253US2017218720A1Plug for well drilling provided with ring-shaped ratchet structureKUREHA CORP·Filed 2017·Application pending·0 cites
- 2352US2016298407A1Plug for well drilling provided with ring-shaped ratchet structureKUREHA CORP·Filed 2014·Application pending·0 cites
- 2450US9926764B2Molded product having effective thickness of 1 mm or more and containing aliphatic polyester resin, and downhole tool member for hydrocarbon resource recoveryKUREHA CORP·Filed 2015·Granted Mar 27, 2018·0 cites·2 claims
- 2546US2016290083A1Downhole tool or downhole tool member, degradable resin composition, and method for recovering hydrocarbon resourceKUREHA CORP·Filed 2014·Application pending·0 cites
- 2646US2016298017A1Temporary plugging agent for well drillingKUREHA CORP·Filed 2014·Application pending·0 cites
- 2746US2016290091A1Degradable seal member for downhole tools, downhole tool, and method of well drilling and completionKUREHA CORP·Filed 2014·Application pending·0 cites
- 2845US2016237774A1Plug for well drillingKUREHA CORP·Filed 2014·Application pending·0 cites
- 2944US2018187060A1Composition for well drilling comprising reactive metal and degradable resin composition, molded product for well drilling, and method for well drillingKUREHA CORP·Filed 2015·Application pending·0 cites
- 3044US2017284167A1Downhole tool containing downhole-tool member containing reactive metal and downhole-tool member containing degradable resin composition, and well-drilling methodKUREHA CORP·Filed 2015·Application pending·0 cites
- 3138US8158213B2Aqueous polymerizable monomer composition, gas barrier film and production process of the filmINABA YUSAKU·Filed 2005·Granted Apr 17, 2012·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →