KO

Kimiyuki Oyamada

NK Nippon Hoso Kyokai: 1 patents #27 of 72Top 40%
Overall (1989): #87,000 of 140,708Top 65%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4807954 Optical coupling device Yozo Utsumi 1989-02-28