SU

Shigeyoshi Umezawa

Sumitomo Electric Industries: 1 patents #1,140 of 3,352Top 35%
Overall (2002): #116,606 of 266,432Top 45%
1
Patents 2002

Issued Patents 2002

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6359243 Multi-directional operating switch and electronic device using the same Yoshiyuki Nakade, Hitokazu Shitanaka, Naoaki Matsui 2002-03-19