Inventor · disambiguated record
Hirofumi Io
Also filed as: IO HIROFUMI
5 granted patents·56 citations·filing 1991–2011
76Inventor score
Top patents by PatentIndex Score
5 records- 0184US5198579ACatalyst for oxidizing methacrolein and method for preparing methacrylic acidMITSUI TOATSU CHEMICALS·Filed 1991·Granted Mar 30, 1993·27 cites·4 claims
- 0279US6875819B2Fluorinated cycloolefin polymers, processes for preparation of fluorinated cycloofefin monomers and polymers thereof, and use of the sameMITSUI CHEMICALS INC·Filed 2002·Granted Apr 5, 2005·18 cites·15 claims
- 0370US6800720B2Hydrogenated ring-opening metathesis copolymer and process for producing the sameMITSUI CHEMICALS INC·Filed 2001·Granted Oct 5, 2004·11 cites·25 claims
- 0456US8216766B2Polymer, polymer preparation method, resist composition and patterning processWATANABE TAKERU·Filed 2009·Granted Jul 10, 2012·0 cites·14 claims
- 0540US9128238B2Optical material and molded product thereofSUNAGA TADAHIRO·Filed 2011·Granted Sep 8, 2015·0 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Hirofumi Io 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 →