Inventor · disambiguated record
Sadao Umezawa
Also filed as: UMEZAWA SADAO
5 granted patents·193 citations·filing 1987–2002
83Inventor score
Top patents by PatentIndex Score
5 records- 0195US4786233AGas turbine cooled bladeHITACHI LTD·Filed 1987·Granted Nov 22, 1988·102 cites·17 claims
- 0281US4875170AMethod and apparatus for estimating life expectancy of mechanical structuresHITACHI LTD·Filed 1988·Granted Oct 17, 1989·47 cites·13 claims
- 0368US6398899B1Method for manufacture of EMI shieldingSHORITSU PLASTICS IND CO LTD·Filed 1998·Granted Jun 4, 2002·33 cites·3 claims
- 0467US6552481B2Color cathode ray tube having deformation-resistant shadow maskHITACHI LTD·Filed 2001·Granted Apr 22, 2003·8 cites·10 claims
- 0545US6740606B2Laminated sheet and manufacturing method thereforSHORITSU PLASTICS IND CO LTD·Filed 2002·Granted May 25, 2004·3 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →