Inventor · disambiguated record
Masashi Echizen
Also filed as: ECHIZEN MASASHI
6 granted patents·5 pending applications·5 citations·filing 2008–2022
69Inventor score
Top patents by PatentIndex Score
11 records- 0165US11396460B2Sulfate ion removal system and method for removing sulfate ionNITTO DENKO CORP·Filed 2019·Granted Jul 26, 2022·0 cites·5 claims
- 0264US8404119B2Method of membrane separation and membrane separation apparatusECHIZEN MASASHI·Filed 2008·Granted Mar 26, 2013·4 cites·6 claims
- 0362US2021197138A1Composite semipermeable membraneNITTO DENKO CORP·Filed 2020·Application pending·0 cites
- 0460US10682615B2Composite semi-permeable membraneNITTO DENKO CORP·Filed 2014·Granted Jun 16, 2020·1 cites·4 claims
- 0560US2021197137A1Composite semipermeable membraneNITTO DENKO CORP·Filed 2020·Application pending·0 cites
- 0657US2023144222A1Composite semipermeable membrane, spiral membrane element, water treatment system, and water treatment methodNITTO DENKO CORP·Filed 2022·Application pending·0 cites
- 0741US11207645B2Composite semipermeable membrane and spiral wound separation membrane elementNITTO DENKO CORP·Filed 2017·Granted Dec 28, 2021·0 cites·5 claims
- 0838US10974200B2Spiral membrane elementNITTO DENKO CORP·Filed 2016·Granted Apr 13, 2021·0 cites·6 claims
- 0934US2017274328A1Composite semipermeable membrane, separation membrane element, and process for producing said membraneNITTO DENKO CORP·Filed 2015·Application pending·0 cites
- 1031US10918996B2Spiral membrane elementNITTO DENKO CORP·Filed 2015·Granted Feb 16, 2021·0 cites·3 claims
- 1130US2017282129A1Composite semipermeable membrane and method for producing the same, spiral wound separation membrane elementNITTO DENKO CORP·Filed 2015·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →