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USPTO Patent Rankings Data through Sept 30, 2025
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Hiroko Takehawa — 1 Patent

Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #3,848,565 of 4,157,543Top 95%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5106413 Measurement method, adjustment method and adjustment system for the concentrations of ingredients in electroless plating solution 1992-04-21