Assignee
Inventors
- Osamu Tachizawa (13 patents)
- Akira Sakaguchi (40 patents)
- Tohru Katoh (25 patents)
- Kohshiro Sotoya (27 patents)
- Noriko Yamaguchi (7 patents)
- Junichi Inokoshi (13 patents)
- Muneo Aoyagi (17 patents)
US Patent 5696070 · Granted Dec 9, 1997