Inventor · disambiguated record
Shunzo Tomioka
Also filed as: NAKANO MASAAKI · TOMIOKA SHUNZO
5 granted patents·125 citations·filing 1973–1983
83Inventor score
Files withHITACHI LTD5
Top patents by PatentIndex Score
5 records- 0187US4291926AGuide bearing deviceHITACHI LTD·Filed 1979·Granted Sep 29, 1981·46 cites·6 claims
- 0285US3940191AMultiple-row roller bearingHITACHI LTD·Filed 1973·Granted Feb 24, 1976·38 cites·33 claims
- 0355US4529209AHydraulic machine shaft seal with centrifugal removal of sand and soil particlesHITACHI LTD·Filed 1983·Granted Jul 16, 1985·15 cites·11 claims
- 0449US4190396ASodium turbine pumpHITACHI LTD·Filed 1977·Granted Feb 26, 1980·17 cites·9 claims
- 0542US4416555ABearing system for vertical type rotary machineHITACHI LTD·Filed 1981·Granted Nov 22, 1983·9 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →