Assignee
Inventors
- Kenzo Yokozeki (73 patents)
- Hideyuki Shirae (4 patents)
- Hiroshi Shiragami (18 patents)
- Yasuo Irie (23 patents)
- Naohiko Yasuda (15 patents)
- Masaru Otani (14 patents)
- Toshiya Tanabe (11 patents)
US Patent 4962193 · Granted Oct 9, 1990