Assignee
Inventors
- Kenji Kushi (33 patents)
- Takayuki Iseki (15 patents)
- Tadayuki Fujiwara (20 patents)
- Kazuhiko Jufuku (6 patents)
- Akifumi Ueda (14 patents)
- Hitoshi Iwasaki (243 patents)
- Youichi Nagai (82 patents)
US Patent 5376500 · Granted Dec 27, 1994