KH

Kunio Hirasawa

HI Hitachi: 1 patents #814 of 2,935Top 30%
Overall (1989): #85,614 of 140,708Top 65%
1
Patents 1989

Issued Patents 1989

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4847476 Ion source device Tadashi Sato, Yasunori Ohno, Tomoe Kurosawa, Nobuya Sekimoto, Yoshimi Hakamata +1 more 1989-07-11