Assignee
Inventors
- Yoshihiro Nagaoka (33 patents)
- Sadashi Tanaka (28 patents)
- Yukiji Iwase (18 patents)
- Michiaki Ida (15 patents)
- Hirotoshi Ishimaru (10 patents)
- Saburo Iwasaki (8 patents)
- Yoshiharu Ueyama (12 patents)
- Tetuya Yoshida (8 patents)
US Patent 6312222 · Granted Nov 6, 2001