HS

Hitokazu Shitanaka

Sumitomo Electric Industries: 1 patents #1,404 of 3,885Top 40%
Overall (2003): #210,590 of 273,478Top 80%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6580039 Multidirectional switch and operation unit using the same Yoshiyuki Nakade, Shigeyoshi Umezawa, Naoaki Matsui 2003-06-17