Inventor · disambiguated record
Kazuhiko Ohkubo
Also filed as: OHKUBO KAZUHIKO
9 granted patents·4 pending applications·353 citations·filing 1994–2008
90Inventor score
Files withMITSUI CHEMICALS INC5MITSUI TOATSU CHEMICALS3MITSUI CHEMICALS POLYURETHANES1MIYATA ATSUSHI1NEC CORP1
Top patents by PatentIndex Score
13 records- 0195US6433033B1High-durability flexible polyurethane cold cure molded foam and process for producing the sameMITSUI CHEMICALS INC·Filed 2000·Granted Aug 13, 2002·112 cites·13 claims
- 0290US5995379AStacked module and substrate thereforeNEC CORP·Filed 1998·Granted Nov 30, 1999·143 cites·11 claims
- 0375US6063825AFlexible polyurethane foam with high durabilityMITSUI CHEMICALS INC·Filed 1998·Granted May 16, 2000·29 cites·25 claims
- 0472US6410676B1Method for producing polyoxyalkylene polyol and derivatives thereofMITSUI CHEMICALS INC·Filed 1999·Granted Jun 25, 2002·24 cites·27 claims
- 0569US5777175APreparation of polyoxyalkylene polyols, polymer polyols and flexible polyurethane foamsMITSUI TOATSU CHEMICALS·Filed 1995·Granted Jul 7, 1998·18 cites·5 claims
- 0667US8236869B2Polyether polyol, rigid polyurethane foam and processes for production thereofMIYATA ATSUSHI·Filed 2007·Granted Aug 7, 2012·1 cites·10 claims
- 0767US6156864APreparation of flexible polyurethane foamsMITSUI CHEMICALS INC·Filed 1997·Granted Dec 5, 2000·16 cites·10 claims
- 0854US2010130631A1Polyester poyol composition for rigid polyurethane foams,and rigid polyurethane foamMITSUI CHEMICALS INC·Filed 2008·Application pending·0 cites
- 0948US2009143495A1Composition for Polyurethane Foam, Polyurethane Foam Obtained From the Composition, and Use ThereofNOZAWA KATSUHISA·Filed 2006·Application pending·0 cites
- 1048US2009127915A1Composition for Polyurethane Foam, Polyurethane Foam Obtained From the Composition, and Use ThereofMITSUI CHEMICALS POLYURETHANES·Filed 2006·Application pending·0 cites
- 1142US5468840APreparation process of polyoxyalkylene polyols and process of alkylene oxide recoveryMITSUI TOATSU CHEMICALS·Filed 1994·Granted Nov 21, 1995·5 cites·3 claims
- 1241US2003171445A1Process for producing flexible polyurethane foam and apparatus for producing flexible polyurethane foamsFiled 2002·Application pending·0 cites
- 1339US5545712APreparation process for polyoxyalkylene polyolMITSUI TOATSU CHEMICALS·Filed 1995·Granted Aug 13, 1996·5 cites·7 claims
Join the waitlist — get patent alerts
Get an alert when Kazuhiko Ohkubo 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 →