Assignee
Inventors
- Yasushi Itaba (11 patents)
- Yutaka Yoshifuji (7 patents)
- Takayoshi Kondo (10 patents)
- Keichiro Saitoh (3 patents)
- Tadao Yoshino (6 patents)
- Minoru Izawa (5 patents)
- Ichiro Sakamoto (4 patents)
US Patent 5145728 · Granted Sep 8, 1992