Assignee
Inventors
- Masahiro Matsuo (65 patents)
- Genji Kanatani (5 patents)
- Hitoshi Kawata (3 patents)
- Tatsurou Ariyama (1 patents)
- Jirou Mase (1 patents)
- Yoshiyuki Kitano (7 patents)
- Haruhito Tsuboi (7 patents)
- Shinichi Isozaki (9 patents)
US Patent 5149487 · Granted Sep 22, 1992