Inventor · disambiguated record
Toshihiko Soyama
Also filed as: SOYAMA TOSHIHIKO
12 granted patents·7 pending applications·110 citations·filing 2001–2021
88Inventor score
Files withHOKUETSU KISHU PAPER CO LTD6HOKUETSU CORP4SOYAMA TOSHIHIKO4HOKUETSU PAPER MILLS3NIKKI-UNIVERSAL CO LTD1
Top patents by PatentIndex Score
19 records- 0192US10443167B2Method for producing a wet-laid nonwoven fabricHOKUETSU CORP·Filed 2016·Granted Oct 15, 2019·26 cites·1 claims
- 0291US9328211B2Porous cellulose body and method for producing sameHOKUETSU KISHU PAPER CO LTD·Filed 2013·Granted May 3, 2016·33 cites·17 claims
- 0379US9656196B2Filter material for air filter, method for manufacturing same, and air filter provided with sameHOKUETSU KISHU PAPER CO LTD·Filed 2014·Granted May 23, 2017·3 cites·4 claims
- 0473US6939386B2Filter medium for air filter and method for its productionHOKUETSU PAPER MILLS·Filed 2001·Granted Sep 6, 2005·31 cites·4 claims
- 0571US7520912B2Air purifying filter media and process for producing the sameHOKUETSU PAPER MILLS·Filed 2002·Granted Apr 21, 2009·4 cites·59 claims
- 0663US12428544B2Electromagnetic wave shield sheet manufacturing method and electromagnetic wave shield sheetHOKUETSU CORP·Filed 2021·Granted Sep 30, 2025·0 cites·5 claims
- 0763US9889411B2Nonwoven fabric for semipermeable membrane supportHOKUETSU KISHU PAPER CO LTD·Filed 2013·Granted Feb 13, 2018·1 cites·9 claims
- 0862US11969695B2Porous body and process for manufacturing sameHOKUETSU CORP·Filed 2020·Granted Apr 30, 2024·0 cites·12 claims
- 0960US12410058B2Method for manufacturing carbon nanotube aqueous dispersionHOKUETSU CORP·Filed 2020·Granted Sep 9, 2025·0 cites·6 claims
- 1058US8662316B2Filter medium for liquid filtration and process for producing the sameSAKADUME NOBUYUKI·Filed 2004·Granted Mar 4, 2014·12 cites·5 claims
- 1150US2015075406A1Porous body and process for manufacturing sameHOKUETSU KISHU PAPER CO LTD·Filed 2012·Application pending·0 cites
- 1243US7547339B2Filter material take-up product for air filterHOKUETSU PAPER MILLS·Filed 2001·Granted Jun 16, 2009·0 cites·3 claims
- 1343US2014342626A1Non-woven fabric for semipermeable membrane supportHOKUETSU KISHU PAPER CO LTD·Filed 2013·Application pending·0 cites
- 1442US2009320428A1Air filter mediumSOYAMA TOSHIHIKO·Filed 2009·Application pending·0 cites
- 1541US2015004865A1Nonwoven fabric for semipermeable membrane supporting body and method for manufacturing sameHOKUETSU KISHU PAPER CO LTD·Filed 2013·Application pending·0 cites
- 1640US2022062483A1Air purification filter and method of producing the sameNIKKI UNIVERSAL CO LTD·Filed 2020·Application pending·0 cites
- 1740US2013267142A1Wet-laid nonwoven fabric for semipermeable membrane supporting body, method for producing said wet-laid nonwoven fabric, and method for identifying low-density defect of wet-laid nonwoven fabricSOYAMA TOSHIHIKO·Filed 2011·Application pending·0 cites
- 1831US2012031063A1Low-basis-weight filter media for air filtersSOYAMA TOSHIHIKO·Filed 2010·Application pending·0 cites
- 1928US8951324B2Air filter mediumSOYAMA TOSHIHIKO·Filed 2011·Granted Feb 10, 2015·0 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →