MA

Masatsugu Arai

HI Hitachi: 3 patents #420 of 3,950Top 15%
📍 Tsuchiura, JP: #3 of 64 inventorsTop 5%
Overall (2002): #25,266 of 266,432Top 10%
3
Patents 2002

Issued Patents 2002

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6499424 Plasma processing apparatus and method Hideyuki Kazumi, Tsutomu Tetsuka, Ryoji Nishio, Ken Yoshioka, Tsunehiko Tsubone +4 more 2002-12-31
6481370 Plasma processsing apparatus Hideyuki Kazumi, Tsutomu Tetsuka, Ryoji Nishio, Ken Yoshioka, Tsunehiko Tsubone +4 more 2002-11-19
6388382 Plasma processing apparatus and method Akira Doi, Ken Yoshioka, Manabu Edamura, Hideyuki Kazumi, Saburou Kanai +3 more 2002-05-14