Assignee
Inventors
- Mitsutaka Miyabayashi (19 patents)
- Toshifumi Nishii (1 patents)
- Hiroshi Yui (18 patents)
- Kuniaki Inada (3 patents)
- Katsuji Ikeda (26 patents)
- Hiroyoshi Nose (1 patents)
- Kenji Tsuchiya (81 patents)
US Patent 4945014 · Granted Jul 31, 1990