Inventor · disambiguated record
Yoshikuni Okumura
Also filed as: OKUMURA YOSHIKUNI
23 granted patents·5 pending applications·395 citations·filing 1997–2021
95Inventor score
Files withUNIV TOKYO8SHOWA DENKO KK7BASELL POLYOLEFINE GMBH4JAPAN POLYOLEFINS CO LTD2OKUMURA YOSHIKUNI2
Top patents by PatentIndex Score
28 records- 0194US5770664ACatalyst component for producing polyolefin, catalyst for producing polyolefin comprising the catalyst component, and process for producing polyolefin in the presence of the catalystJAPAN POLYOLEFINS CO LTD·Filed 1997·Granted Jun 23, 1998·152 cites·14 claims
- 0293US7405261B2Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and process for preparing polyolefinsBASELL POLYOLEFINE GMBH·Filed 2003·Granted Jul 29, 2008·42 cites·9 claims
- 0392US7452949B2Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefinsBASELL POLYOLEFINE GMBH·Filed 2004·Granted Nov 18, 2008·43 cites·9 claims
- 0491US11248074B2Method for producing copolymer of polar group-containing allyl monomerUNIV TOKYO·Filed 2019·Granted Feb 15, 2022·4 cites·14 claims
- 0591US9499644B2Production method of polar group-containing olefin polymersUNIV TOKYO·Filed 2014·Granted Nov 22, 2016·10 cites·19 claims
- 0691US7842764B2Metallocene compoundsBASELL POLIOLEFINE SRL·Filed 2006·Granted Nov 30, 2010·12 cites·8 claims
- 0790US9303101B2Catalyst for synthesizing polyolefinsUNIV TOKYO·Filed 2013·Granted Apr 5, 2016·10 cites·21 claims
- 0890US9284390B2Copolymer of allyl monomer containing polar groupUNIV TOKYO·Filed 2014·Granted Mar 15, 2016·7 cites·7 claims
- 0989US11352453B2Catalyst for olefin polymerization and production method for polar group-containing olefin-based polymersUNIV TOKYO·Filed 2018·Granted Jun 7, 2022·4 cites·13 claims
- 1088US10414837B2Method for producing polar group-containing olefin polymerUNIV TOKYO·Filed 2015·Granted Sep 17, 2019·4 cites·11 claims
- 1188US8916663B2Production method of copolymer of allyl monomer containing polar groupNOZAKI KYOKO·Filed 2010·Granted Dec 23, 2014·12 cites·7 claims
- 1286US8889805B2Carboxylate metal complex and catalyst for olefin polymerizationITO SHINGO·Filed 2011·Granted Nov 18, 2014·6 cites·11 claims
- 1385US11697698B2Method for producing copolymer of allyl monomer having polar groupUNIV TOKYO·Filed 2019·Granted Jul 11, 2023·2 cites·16 claims
- 1484US7109278B2Organometallic transition metal compound, biscyclopentadienyl ligand system, catalyst system and preparation of polyolefinsBASELL POLYOLEFINE GMBH·Filed 2002·Granted Sep 19, 2006·29 cites·11 claims
- 1584US6121182APolyolefin production catalyst and method of preparing polyolefinsJAPAN POLYOLEFINS CO LTD·Filed 1997·Granted Sep 19, 2000·52 cites·11 claims
- 1674US9856190B21, 3-butadiene separating material, and separation method using said separating materialSHOWA DENKO KK·Filed 2014·Granted Jan 2, 2018·2 cites·15 claims
- 1772US9957285B2Metal complex, adsorbent, separating material, and 1, 3-butadiene separation methodSHOWA DENKO KK·Filed 2014·Granted May 1, 2018·1 cites·16 claims
- 1870US9475032B2Molded article for hydrocarbon adsorptionSHOWA DENKO KK·Filed 2014·Granted Oct 25, 2016·1 cites·14 claims
- 1968US7728181B2Method for producing α, β-unsaturated etherSHOWA DENKO KK·Filed 2007·Granted Jun 1, 2010·2 cites·3 claims
- 2055US2022220387A1Method for producing impregnated pitchSHOWA DENKO KK·Filed 2021·Application pending·0 cites
- 2153US2022234024A1Method for recovering olefinSHOWA DENKO KK·Filed 2020·Application pending·0 cites
- 2251US11981765B2Catalyst for olefin polymerization and method for producing polar group—containing olefin polymerUNIV TOKYO·Filed 2020·Granted May 14, 2024·0 cites·8 claims
- 2351US11655360B2Gas-barrier resin composition and use thereofSHOWA DENKO KK·Filed 2018·Granted May 23, 2023·0 cites·12 claims
- 2445US8791307B2Process for producing α, β-unsaturated etherOKUMURA YOSHIKUNI·Filed 2008·Granted Jul 29, 2014·0 cites·7 claims
- 2540US2006252637A1Bisindenyl zirconium complexes for use in the polymerization of olefinsBASELL POLYOLEFINE GMBH·Filed 2004·Application pending·0 cites
- 2637US2003017939A1Catalyst system for the polymerization of olefinsFiled 2001·Application pending·0 cites
- 2735US9051399B2Method for producing polar group-containing olefin copolymersOKUMURA YOSHIKUNI·Filed 2011·Granted Jun 9, 2015·0 cites·10 claims
- 2835US2004030051A1Polypropylene having low isotacticity and relatively high melting pointFiled 2001·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →