Inventor · disambiguated record
Seiji Maruoka
Also filed as: MARUOKA SEIJI
3 granted patents·1 pending application·0 citations·filing 2015–2024
42Inventor score
Files withNIDEC CORP4
Top patents by PatentIndex Score
4 records- 0166US12512123B2Base plate, spindle motor, disk drive device, and base plate manufacturing methodNIDEC CORP·Filed 2024·Granted Dec 30, 2025·0 cites·20 claims
- 0249US10530217B2Motor having screws with differing pitch and screw-receiving groove portions with differing axial lengthNIDEC CORP·Filed 2018·Granted Jan 7, 2020·0 cites·15 claims
- 0336US2019214052A1MotorNIDEC CORP·Filed 2018·Application pending·0 cites
- 0431US9484058B2Spindle motor and disk drive apparatusNIDEC CORP·Filed 2015·Granted Nov 1, 2016·0 cites·16 claims
Join the waitlist — get patent alerts
Get an alert when Seiji Maruoka 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 →