Assignee
Inventors
- Tetsuhiko Hirata (16 patents)
- Kazuo Yagyu (6 patents)
- Matsuaki Terada (13 patents)
- Hiroshi Nakase (5 patents)
- Shigeru Oshima (42 patents)
- Motoyoshi Morito (4 patents)
- Takahiko Nishizawa (2 patents)
US Patent 5150365 · Granted Sep 22, 1992