Inventor · disambiguated record
Koji Hirooka
Also filed as: HIROOKA KOJI
5 granted patents·75 citations·filing 2000–2021
72Inventor score
Top patents by PatentIndex Score
5 records- 0192US6378903B1Shock absorbing apparatus for steering columnYAMADA SEISAKUSHO KK·Filed 2000·Granted Apr 30, 2002·73 cites·13 claims
- 0273US10870443B2Shock absorbing steering deviceYAMADA MFG CO LTD·Filed 2018·Granted Dec 22, 2020·1 cites·7 claims
- 0357US10518798B2Steering deviceYAMADA MFG CO LTD·Filed 2017·Granted Dec 31, 2019·1 cites·13 claims
- 0443US10711844B2Assembly of shaft and yokeYAMADA MFG CO LTD·Filed 2018·Granted Jul 14, 2020·0 cites·5 claims
- 0537US12017698B2Steering deviceYAMADA MFG CO LTD·Filed 2021·Granted Jun 25, 2024·0 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →