Inventor · disambiguated record
Hiroaki Kumagai
Also filed as: KUMAGAI HIROAKI
13 granted patents·1 pending application·213 citations·filing 1991–2018
92Inventor score
Top patents by PatentIndex Score
14 records- 0183US5753348AFluororesin tube-covered fixing roller, and image formation apparatusCANON KK·Filed 1996·Granted May 19, 1998·33 cites·13 claims
- 0281US5608508ARotatable member for fixing in which inorganic filler is contained in silicone rubber, and fixing device having the sameCANON KK·Filed 1995·Granted Mar 4, 1997·30 cites·21 claims
- 0376US5765086AHeat fixing belt with conductive aluminum layer toner release layer and elastic layer disposed therebetweenCANON KK·Filed 1996·Granted Jun 9, 1998·24 cites·10 claims
- 0472US5763068AFluororesin-coated member, production method therefor and heat fixing device using the coated memberCANON KK·Filed 1996·Granted Jun 9, 1998·27 cites·9 claims
- 0570US5392156AOptical deviceCANON KK·Filed 1993·Granted Feb 21, 1995·32 cites·20 claims
- 0669US10533579B2Electric pump and mounting structure of electric pumpAISIN SEIKI·Filed 2017·Granted Jan 14, 2020·1 cites·7 claims
- 0767US5939337AToner fixation film and toner fixation apparatus using itCANON KK·Filed 1996·Granted Aug 17, 1999·27 cites·14 claims
- 0860US5320936APhoto responsive material employing a thiophene derivative having long conjugated chain at 3-positionCANON KK·Filed 1993·Granted Jun 14, 1994·4 cites·17 claims
- 0949US10767657B2Axial alignment structure for fluid pressure pumpAISIN SEIKI·Filed 2018·Granted Sep 8, 2020·0 cites·4 claims
- 1047US6847096B2Semiconductor wafer having discharge structure to substrateOKI ELECTRIC IND CO LTD·Filed 2002·Granted Jan 25, 2005·6 cites·15 claims
- 1146US5863660AFixing member and fixing apparatus including sameCANON KK·Filed 1997·Granted Jan 26, 1999·7 cites·9 claims
- 1242US2011114051A1Air intake apparatus for internal combustion engineAISIN SEIKI·Filed 2010·Application pending·0 cites
- 1338US5247098AThiophene derivative having long conjugated chain at 3-position, and photo-responsive material imploying the sameCANON KK·Filed 1991·Granted Sep 21, 1993·5 cites·9 claims
- 1434US5628314AMulti-laser beam-scanning through living body penetration diagnosis and treatment apparatusFiled 1994·Granted May 13, 1997·17 cites·13 claims
Join the waitlist — get patent alerts
Get an alert when Hiroaki Kumagai 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 →