Assignee
Inventors
- Tetsuo Ohashi (27 patents)
- Jun Tada (10 patents)
- Shigeru Fukushima (180 patents)
- Hiroko Ozaki (3 patents)
- Naoyuki Nishimura (10 patents)
- Yoshinari Shirasaki (6 patents)
- Koichi Yamagata (14 patents)
US Patent 5516898 · Granted May 14, 1996