Inventor · disambiguated record
Hirofumi Takayama
Also filed as: TAKAYAMA HIROFUMI
4 granted patents·29 citations·filing 2002–2013
73Inventor score
Top patents by PatentIndex Score
4 records- 0180US8675305B2Base unit, spindle motor, and disk drive apparatusNIDEC CORP·Filed 2013·Granted Mar 18, 2014·7 cites·18 claims
- 0278US8687316B2Spindle motor and disk drive apparatusNIDEC CORP·Filed 2013·Granted Apr 1, 2014·6 cites·17 claims
- 0370US6647218B2Image forming apparatus that discriminates an abnormality in a fixing unitCANON KK·Filed 2002·Granted Nov 11, 2003·15 cites·5 claims
- 0447US7908737B2Production method of fluid dynamic-pressure bearing in spindle motorNIDEC CORP·Filed 2008·Granted Mar 22, 2011·1 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Hirofumi Takayama 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 →