Assignee
Inventors
- Yoshio Igarashi (6 patents)
- Fumihiro Asano (3 patents)
- Makoto Shimoyamada (4 patents)
- Masayuki Harada (29 patents)
- Shigeru Nakano (28 patents)
- Ryoji Iwai (2 patents)
- Keisuke Yagami (2 patents)
- Yuzi Konno (3 patents)
US Patent 5648534 · Granted Jul 15, 1997