Inventor · disambiguated record
Norihiko Mitsui
Also filed as: MITSUI NORIHIKO
3 granted patents·69 citations·filing 1972–1976
73Inventor score
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0180US4117908AElevator having rope guide meansHITACHI LTD·Filed 1972·Granted Oct 3, 1978·31 cites·11 claims
- 0269US4078623AScaling device for an elevator carHITACHI LTD·Filed 1975·Granted Mar 14, 1978·25 cites·17 claims
- 0348US4057934AProtection system for automatically openable and closable doorHITACHI LTD·Filed 1976·Granted Nov 15, 1977·13 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →