Assignee
Inventors
- Harutada Ohya (2 patents)
- Katsutoshi Tagami (22 patents)
- Yoshikazu Tsuchiya (25 patents)
- Kazuo Nakamura (191 patents)
- Hayato Muneyuki (2 patents)
- Yoshio Mase (3 patents)
- Masaru Nishijimi (1 patents)
US Patent 4747097 · Granted May 24, 1988