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Osamu Koyanagi

HI Hitachi: 1 patents #1,745 of 4,225Top 45%
Overall (2003): #146,778 of 273,478Top 55%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6621030 Gas-insulated switchgear Tomoyuki Andou, Junzo Kida, Makoto Hirose 2003-09-16