Assignee
Inventors
- Takehiro Katoh (43 patents)
- Yoshihiko Azuma (21 patents)
- Masayasu Hirano (26 patents)
- Naohiro Kageyama (23 patents)
- Toshihiko Ishimura (59 patents)
- Kenji Tsuji (52 patents)
- Hiroshi Ootsuka (152 patents)
US Patent 5799215 · Granted Aug 25, 1998