YI

Yoshiji Ito

HI Hitachi: 1 patents #17,742 of 28,497Top 65%
Overall (All Time): #4,056,810 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4401365 Rotary type optical switch Sadao Mizokawa, Yasuo Hosoda, Hiroshi Kaita, Tadaaki Okada, Hiroaki Ohnishi +4 more 1983-08-30