Inventor · disambiguated record
Keiichi Umehara
Also filed as: UMEHARA KEIICHI
3 granted patents·62 citations·filing 1989–1992
72Inventor score
Technology areasG01D
Files withTOKAI RIKA CO LTD3
Top patents by PatentIndex Score
3 records- 0179US5243188ANeutral position detector for steering wheels having a first and second rotors with aligned slotsTOKAI RIKA CO LTD·Filed 1992·Granted Sep 7, 1993·39 cites·6 claims
- 0263US5004915ASteering angle sensor apparatusTOKAI RIKA CO LTD·Filed 1989·Granted Apr 2, 1991·19 cites·10 claims
- 0330US5220162ADisk for revolution sensor having at least three engaging portionsTOKAI RIKA CO LTD·Filed 1992·Granted Jun 15, 1993·4 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →