Inventor · disambiguated record
Yoshihisa Takeyama
Also filed as: TAKEYAMA YOSHIHISA
13 granted patents·11 pending applications·17 citations·filing 2007–2022
84Inventor score
Top patents by PatentIndex Score
24 records- 0191US8889806B2Ring-opening polymer of cyclopentene and method of production of sameTSUNOGAE YASUO·Filed 2011·Granted Nov 18, 2014·9 cites·12 claims
- 0283US11448319B2Composition for gas seal member and method of producing same, gas seal member for high-pressure hydrogen device, and high-pressure hydrogen deviceUNIV KYUSHU NAT UNIV CORP·Filed 2018·Granted Sep 20, 2022·1 cites·7 claims
- 0381US10982083B2Fluorinated elastomer composition and shaped articleZEON CORP·Filed 2017·Granted Apr 20, 2021·1 cites·6 claims
- 0474US8609005B2Stretched film of addition polymer consisting of norbornene compound, process for producing the same and use thereofTAKEYAMA YOSHIHISA·Filed 2007·Granted Dec 17, 2013·6 cites·2 claims
- 0568US11186698B2Rubber compositionZEON CORP·Filed 2018·Granted Nov 30, 2021·0 cites·8 claims
- 0664US12215825B2High-pressure hydrogen apparatus gas seal member and high-pressure hydrogen apparatusZEON CORP·Filed 2021·Granted Feb 4, 2025·0 cites·14 claims
- 0764US2022025152A1Crosslinked material for endoscope, endoscope, and composition for forming crosslinked material for endoscopeFUJIFILM CORP·Filed 2021·Application pending·0 cites
- 0863US2023374256A1Elastomer composition, method of producing elastomer composition, cross-linked material, and shaped objectZEON CORP·Filed 2021·Application pending·0 cites
- 0961US2024158605A1Elastomer composition and method of producing same, cross-linked material, and shaped objectZEON CORP·Filed 2022·Application pending·0 cites
- 1060US2024140801A1Carbon filmZEON CORP·Filed 2022·Application pending·0 cites
- 1157US11584831B2Method of producing slurry, method of producing composite resin material, and method of producing shaped productZEON CORP·Filed 2017·Granted Feb 21, 2023·0 cites·8 claims
- 1256US11649387B2Gas seal member for high-pressure hydrogen device, and high-pressure hydrogen deviceUNIV KYUSHU NAT UNIV CORP·Filed 2018·Granted May 16, 2023·0 cites·7 claims
- 1354US10717850B2Composition for gas seal member and gas seal memberZEON CORP·Filed 2016·Granted Jul 21, 2020·0 cites·8 claims
- 1452US12031082B2Seal materialZEON CORP·Filed 2019·Granted Jul 9, 2024·0 cites·14 claims
- 1552US2023089301A1Rubber composition and electrodeZEON CORP·Filed 2021·Application pending·0 cites
- 1651US8013090B2Film comprising norbornene compound addition polymerZEON CORP·Filed 2007·Granted Sep 6, 2011·0 cites·10 claims
- 1750US9045617B2Ring-opening polymer of cyclopentene and method of production of sameTSUNOGAE YASUO·Filed 2011·Granted Jun 2, 2015·0 cites·10 claims
- 1850US2009297870A1Norbornene Compound Addition Polymer Film, Process for Production Thereof, and Use ThereofZEON CORP·Filed 2007·Application pending·0 cites
- 1949US11161946B2Method of producing composite resin material and method of producing shaped productZEON CORP·Filed 2017·Granted Nov 2, 2021·0 cites·7 claims
- 2045US2021002462A1Uncrosslinked elastomer composition and crosslinked product of sameZEON CORP·Filed 2019·Application pending·0 cites
- 2145US2015099841A1Method of production of nitrile copolymer rubber compositionZEON CORP·Filed 2013·Application pending·0 cites
- 2245US2014220279A1Nitrile copolymer rubber composition and cross-linked rubberZEON CORP·Filed 2012·Application pending·0 cites
- 2344US2019276610A1Slurry, method of producing composite resin material, and method of producing shaped productZEON CORP·Filed 2017·Application pending·0 cites
- 2441US2018375215A1Electromagnetic wave absorption material, electromagnetic wave absorber, and production methods thereforZEON CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →