Inventor · disambiguated record
Okihiko Hirasa
Also filed as: HIRASA OKIHIKO
3 granted patents·141 citations·filing 1987–1990
74Inventor score
Files withAGENCY IND SCIENCE TECHN3
Top patents by PatentIndex Score
3 records- 0193US4845132AHydrophilic porous membrane, method for production thereof, and plasma separator using said membraneAGENCY IND SCIENCE TECHN·Filed 1987·Granted Jul 4, 1989·112 cites·23 claims
- 0261US5186835APorous hydrophilic polypropylene membrane, method for production thereof, and blood plasma separation apparatusAGENCY IND SCIENCE TECHN·Filed 1988·Granted Feb 16, 1993·24 cites·14 claims
- 0342US5162582AN-(2-methoxyethyl)-N-isopropylacrylamide, hydrophilic-hydrophobic thermally reversible macromolecular compound, method for production thereof, and thermally reversible macromolecular compositionAGENCY IND SCIENCE TECHN·Filed 1990·Granted Nov 10, 1992·5 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Okihiko Hirasa 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 →