Inventor

HIROKAWA SHINPEI

JP2 patents

Patents

2 patents

US6903499B2Jun 7, 2005

Electron gun and a method for using the same

DENKI KAGAKU KOGYO KK13 citations80

US6509570B1Jan 21, 2003

Gallium ion source

DENKI KAGAKU KOGYO KK3 citations59