Inventor · disambiguated record
Masayoshi Handa
Also filed as: HANDA MASAYOSHI
15 granted patents·16 pending applications·40 citations·filing 2002–2013
89Inventor score
Files withSUMITOMO SEIKA CHEMICALS12HANDA MASAYOSHI7FUKUDOME SHINYA2TAKATORI JUNICHI2HINAYAMA TETSUHIRO1
Top patents by PatentIndex Score
31 records- 0182US9138722B2Method for producing water-absorbent resin particlesSUMITOMO SEIKA CHEMICALS·Filed 2013·Granted Sep 22, 2015·4 cites·2 claims
- 0279US8378033B2Process for production of water-absorbable resin particle, and water-absorbable resin particle produced by the processSUMITOMO SEIKA CHEMICALS·Filed 2007·Granted Feb 19, 2013·5 cites·8 claims
- 0377US8802918B2Water-absorbent sheet compositionFUKUDOME SHINYA·Filed 2009·Granted Aug 12, 2014·5 cites·21 claims
- 0475US9273156B2Method for producing water-absorbent resinTAKATORI JUNICHI·Filed 2011·Granted Mar 1, 2016·4 cites·4 claims
- 0574US8003210B2Process for producing water-absorbing resin particles, water-absorbing resin particles made by the process, and absorbent materials and absorbent articles made by using the particlesSUMITOMO SEIKA CHEMICALS·Filed 2006·Granted Aug 23, 2011·4 cites·6 claims
- 0664US7737231B2Process for producing water-absorbing resinSUMITOMO SEIKA CHEMICALS·Filed 2002·Granted Jun 15, 2010·8 cites·10 claims
- 0762US8198376B2Process for production of water-absorbable resinKOBUSHI HIROMU·Filed 2007·Granted Jun 12, 2012·1 cites·20 claims
- 0862US7868075B2Water-absorbing resin compositionSUMITOMO SEIKA CHEMICALS·Filed 2004·Granted Jan 11, 2011·6 cites·10 claims
- 0960US2011276019A1Water-absorbent sheet compositionSUMITOMO SEIKA CHEMICALS·Filed 2009·Application pending·0 cites
- 1057US9233519B2Water-absorbent sheet structureYAMAGUCHI KIYOSHI·Filed 2010·Granted Jan 12, 2016·3 cites·13 claims
- 1154US2010256308A1Process for the production of water-absorbing resins and water-absorbing resins obtained by the processSUMITOMO SEIKA CHEMICALS·Filed 2008·Application pending·0 cites
- 1253US2010197491A1Method for production of water-absorbable resin, and water-absorbable resin produced by the methodSUMITOMO SEIKA CHEMICALS·Filed 2008·Application pending·0 cites
- 1350US2011111199A1Water-absorbent sheet compositionSUMITOMO SEIKA CHEMICALS·Filed 2009·Application pending·0 cites
- 1450US2011151228A1Water-absorbent sheet compositionSUMITOMO SEIKA CHEMICALS·Filed 2009·Application pending·0 cites
- 1548US2007239124A1Water-absorbing resin compositionHANDA MASAYOSHI·Filed 2007·Application pending·0 cites
- 1645US8969497B2Method for producing water-absorbent resin, and water-absorbent resin obtained by sameHANDA MASAYOSHI·Filed 2012·Granted Mar 3, 2015·0 cites·8 claims
- 1743US2007111004A1Water-absorbing resin compositionSUMITOMO SEIKA CHEMICALS·Filed 2004·Application pending·0 cites
- 1842US9605094B2Method for producing water absorbent resin particlesSUMITOMO SEIKA CHEMICALS·Filed 2012·Granted Mar 28, 2017·0 cites·5 claims
- 1941US9199218B2Water absorbing resin particles, method for manufacturing water absorbing resin particles, absorption body, absorptive article, and water-sealing materialHANDA MASAYOSHI·Filed 2012·Granted Dec 1, 2015·0 cites·20 claims
- 2041US2006074160A1Water-absorbing resin compositionHANDA MASAYOSHI·Filed 2003·Application pending·0 cites
- 2140US8981176B2Water-absorbing resin compoundTANIGUCHI TAKAYASU·Filed 2010·Granted Mar 17, 2015·0 cites·8 claims
- 2239US2013158495A1Water absorbent resin and method for producing sameHANDA MASAYOSHI·Filed 2011·Application pending·0 cites
- 2338US9061269B2Method for producing water-absorbent resinHANDA MASAYOSHI·Filed 2012·Granted Jun 23, 2015·0 cites·9 claims
- 2438US2008119808A1Water Absorbing Resin Particle And, Making Use Of The Same, Absorber Material And Absorbent ArticleHANDA MASAYOSHI·Filed 2005·Application pending·0 cites
- 2533US9320660B2Process for production of water-absorbing resin particles, water-absorbing resin particles, water-stopping material, and absorbent articleKIKUNO SACHI·Filed 2010·Granted Apr 26, 2016·0 cites·9 claims
- 2633US2012328861A1Water-absorbent sheet structureHINAYAMA TETSUHIRO·Filed 2010·Application pending·0 cites
- 2733US2012089108A1Water absorbent sheetUEDA KOJI·Filed 2010·Application pending·0 cites
- 2832US2012328862A1Water-absorbent sheet structureFUKUDOME SHINYA·Filed 2010·Application pending·0 cites
- 2931US2013130017A1Water-absorbing resinTAKATORI JUNICHI·Filed 2011·Application pending·0 cites
- 3027US2012288701A1Water-absorbent sheet structureMATSUSHITA HIDEKI·Filed 2010·Application pending·0 cites
- 3124US2012203191A1Water-absorbent sheetMARUO JUNICHI·Filed 2010·Application pending·0 cites
Join the waitlist — get patent alerts
Get an alert when Masayoshi Handa files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →