Inventor · disambiguated record
Keijirou Sakai
Also filed as: SAKAI KEIJIROU
3 granted patents·39 citations·filing 2001–2003
69Inventor score
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0175US6556464B2PWM converter systemHITACHI LTD·Filed 2001·Granted Apr 29, 2003·30 cites·11 claims
- 0252US6876108B2Linear motor, its controlling method, and XY tableHITACHI LTD·Filed 2003·Granted Apr 5, 2005·6 cites·15 claims
- 0345US6975048B2Drive apparatus and XY table utilizing the sameHITACHI LTD·Filed 2003·Granted Dec 13, 2005·3 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when Keijirou Sakai 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 →