Masatsugu Arai

HI Hitachi: 1 patents #1,745 of 4,225Top 45%

HH Hitachi High-Technologies: 1 patents #1 of 21Top 5%

📍 Tsuchiura, JP: #16 of 56 inventorsTop 30%

Overall (2003): #169,380 of 273,478Top 65%

Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6664738	Plasma processing apparatus	Ryujiro Udo, Naoyuki Tamura, Masanori Kadotani, Motohiko Yoshigai	2003-12-16