Assignee
Inventors
- Hiroshi Tanaka (842 patents)
- Tetsuo Ishiwata (7 patents)
- Shuzo Hitotsumachi (4 patents)
- Hitoshi Komae (3 patents)
- Susumu Yamaguchi (55 patents)
- Tadashi Yoshino (15 patents)
- Eiji Yamauchi (16 patents)
US Patent 5068752 · Granted Nov 26, 1991