Assignee
Inventors
- Susumu Nakagawa (44 patents)
- Shinji Kato (7 patents)
- Satoshi Murase (8 patents)
- Osamu Okamoto (10 patents)
- Ryuji Mitomo (9 patents)
- Katsumi Yamamoto (2 patents)
- Koji Yamada (47 patents)
- Hiroshi Fukatsu (11 patents)
US Patent 5550121 · Granted Aug 27, 1996