Assignee
Inventors
- Masahiro Ohshima (5 patents)
- Norimichi Iwase (6 patents)
- Shigeo Sugiyama (1 patents)
- Koichi Sugawara (4 patents)
- Misao Okitsu (2 patents)
- Yoshikuni Tamao (17 patents)
- Yasuhiro Morinaka (33 patents)
US Patent 5744487 · Granted Apr 28, 1998