Assignee
Inventors
- Kazuo Sato (22 patents)
- Toshiaki Yanai (17 patents)
- Takao Kinoto (6 patents)
- Keiji Tanaka (7 patents)
- Akira Nishida (5 patents)
- Toshimitsu Toyama (8 patents)
- Bruno Frei (10 patents)
- Anthony Cornelius O'Sullivan (40 patents)
US Patent 4963582 · Granted Oct 16, 1990