Assignee
Inventors
- Masashi Ohashi (22 patents)
- Yoshikuni Toyama (10 patents)
- Kazuo Kagiura (13 patents)
- Hiroyoshi Maruyama (26 patents)
- Tatsuya Shiratori (34 patents)
- Masanari Shirai (16 patents)
- Eiichi Ando (29 patents)
US Patent 4995601 · Granted Feb 26, 1991