HY

Hisayoshi Yanai

TO Toshiba: 1 patents #1,121 of 2,688Top 45%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
Overall (All Time): #3,966,543 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4636824 Voltage-controlled type semiconductor switching device Toshiaki Ikoma, Hajime Maeda, Ryo Dang, Naoyuki Shigyo 1987-01-13