Assignee
Inventors
- Toshio Kikuma (4 patents)
- Hiromi Matsumoto (13 patents)
- Masayoshi Tagawa (3 patents)
- Toshiyuki Kajiwara (44 patents)
- Tomoaki Kimura (83 patents)
- Yoshihiko Iida (6 patents)
- Kenichi Yoshimoto (5 patents)
US Patent 4700312 · Granted Oct 13, 1987