Inventor · disambiguated record
Kiyoshi Umezawa
Also filed as: UMEZAWA KIYOSHI
3 granted patents·72 citations·filing 1976–1983
73Inventor score
Files withHITACHI LTD3
Top patents by PatentIndex Score
3 records- 0163US4626838AFilled shaped generating apparatusHITACHI LTD·Filed 1983·Granted Dec 2, 1986·36 cites·8 claims
- 0258US4158883ARefresh control systemHITACHI LTD·Filed 1976·Granted Jun 19, 1979·21 cites·15 claims
- 0355US4580236AGraphic display apparatus with a vector generating circuitHITACHI LTD·Filed 1983·Granted Apr 1, 1986·15 cites·3 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →