Assignee
Inventors
- Hirokazu Andou (17 patents)
- Hideaki Ishimizu (24 patents)
- Mitsuru Kishimoto (29 patents)
- Yoichi Umezawa (5 patents)
- Hiroshi Sakaino (6 patents)
- Masahiko Shimosugi (13 patents)
- Takanori Mimura (18 patents)
US Patent 5474391 · Granted Dec 12, 1995