Assignee
Inventors
- Youzou Majima (5 patents)
- Yutaka Suzuki (151 patents)
- Eiju Matsunaga (9 patents)
- Toshinobu Ishida (26 patents)
- Sigeru Kamiya (11 patents)
- Yasumasa Hagiwara (23 patents)
- Masatoshi Kuroyanagi (50 patents)
US Patent 5129489 · Granted Jul 14, 1992