Inventor · disambiguated record
Yoshinao Okumoto
Also filed as: OKUMOTO YOSHINAO
5 granted patents·293 citations·filing 1987–1995
86Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0191US4905478AAir conditioner for railway vehiclesHITACHI LTD·Filed 1989·Granted Mar 6, 1990·77 cites·4 claims
- 0290US5433151ARailway car body structures and methods of making them using welded honeycomb panels connected in an edge to edge relationHITACHI LTD·Filed 1994·Granted Jul 18, 1995·72 cites·14 claims
- 0387US5685229ARailway car body structures and method of making themHITACHI LTD·Filed 1995·Granted Nov 11, 1997·75 cites·7 claims
- 0475US4870833ACar air conditioning apparatus and controlling method thereforHITACHI LTD·Filed 1987·Granted Oct 3, 1989·44 cites·7 claims
- 0566US4982583AAir conditioner for railway vehiclesHITACHI LTD·Filed 1990·Granted Jan 8, 1991·25 cites·4 claims
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