Inventor · disambiguated record
Masakazu Koiwa
Also filed as: KOIWA MASAKAZU
14 granted patents·12 pending applications·97 citations·filing 2005–2021
90Inventor score
Top patents by PatentIndex Score
26 records- 0193US9724646B2Separation membrane elementTORAY INDUSTRIES·Filed 2013·Granted Aug 8, 2017·16 cites·9 claims
- 0291US9616390B2Separation membrane, separation membrane element, and method for producing separation membraneHIROZAWA HIROHO·Filed 2012·Granted Apr 11, 2017·16 cites·9 claims
- 0391US9387445B2Separation membrane elementKIMURA MASAHIRO·Filed 2011·Granted Jul 12, 2016·19 cites·11 claims
- 0489US9764291B2Spiral separation membrane element and method for producing sameHIROZAWA HIROHO·Filed 2012·Granted Sep 19, 2017·18 cites·8 claims
- 0589US9597640B2Separation membrane element and production method for sameKOIWA MASAKAZU·Filed 2011·Granted Mar 21, 2017·17 cites·11 claims
- 0684US11905180B2Method for recovering rare metal saltTORAY INDUSTRIES·Filed 2021·Granted Feb 20, 2024·2 cites·28 claims
- 0783US11383208B2Gas separation membrane, gas separation membrane element, and gas separation methodTORAY INDUSTRIES·Filed 2018·Granted Jul 12, 2022·2 cites·9 claims
- 0883US11000800B2Gas separation membrane, gas separation membrane element, and gas separation methodTORAY INDUSTRIES·Filed 2017·Granted May 11, 2021·2 cites·8 claims
- 0979US11167249B2Separation membrane, separation membrane element, water purifier, and method for producing separation membraneTORAY INDUSTRIES·Filed 2016·Granted Nov 9, 2021·2 cites·14 claims
- 1066US8431161B2Microparticle and pharmaceutical composition thereofKAKIZAWA YOSHINORI·Filed 2009·Granted Apr 30, 2013·3 cites·22 claims
- 1155US12403427B2Method of separating and recovering cobalt salt and nickel saltTORAY INDUSTRIES·Filed 2021·Granted Sep 2, 2025·0 cites·15 claims
- 1252US11617991B2Separation filmTORAY INDUSTRIES·Filed 2020·Granted Apr 4, 2023·0 cites·5 claims
- 1352US2015298064A1Separation membrane and separation membrane elementTORAY INDUSTRIES·Filed 2013·Application pending·0 cites
- 1447US2015321148A1Separation membrane and separation membrane elementTORAY INDUSTRIES·Filed 2013·Application pending·0 cites
- 1546US2020147561A1Gas separation membrane, gas separation membrane element, gas separator, and gas separation methodTORAY INDUSTRIES·Filed 2018·Application pending·0 cites
- 1646US2015041388A1Separation membrane and separation membrane elementTORAY INDUSTRIES·Filed 2013·Application pending·0 cites
- 1745US9527042B2Separation membrane for water treatment and production method for sameTAKAGI KENTARO·Filed 2012·Granted Dec 27, 2016·0 cites·10 claims
- 1845US2008019918A1Medicinal PreparationAOKI TAKAO·Filed 2005·Application pending·0 cites
- 1945US2014251896A1Separation membrane, separation membrane element and method for producing separation membraneTORAY INDUSTRIES·Filed 2012·Application pending·0 cites
- 2045US2014231332A1Separation membrane and separation membrane elementTORAY INDUSTRIES·Filed 2012·Application pending·0 cites
- 2143US10974205B2Composite semipermeable membraneTORAY INDUSTRIES·Filed 2013·Granted Apr 13, 2021·0 cites·11 claims
- 2243US2015283515A1Composite semipermeable membrane and composite semipermeable membrane elementTORAY INDUSTRIES·Filed 2013·Application pending·0 cites
- 2340US2013334128A1Separation membrane elementTAKAGI KENTARO·Filed 2011·Application pending·0 cites
- 2440US2013213880A1Separation membrane, separation membrane element and separation membrane production methodHIROZAWA HIROHO·Filed 2011·Application pending·0 cites
- 2539US2010184695A1Vascular endothelial cell-binding peptideKOYAMATSU YUICHI·Filed 2007·Application pending·0 cites
- 2636US2012305473A1Composite semipermeable membrane and method of producing the sameOGAWA TAKAFUMI·Filed 2011·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →