Assignee
Inventors
- Shin Kimura (27 patents)
- Norikazu Tokunaga (30 patents)
- Nobuyoshi Mutoh (29 patents)
- Satoshi Ibori (33 patents)
- Shuuji Musha (1 patents)
- Yasuo Matsuda (63 patents)
- Yutaka Suzuki (151 patents)
US Patent 5210479 · Granted May 11, 1993