Assignee
Inventors
- Isao Okada (8 patents)
- Yoshiyuki Kato (92 patents)
- Koji Ide (23 patents)
- Toshihiko Yasuma (3 patents)
- Richard Geiger (13 patents)
- Akio Tanaka (97 patents)
- Ryuichi Sada (2 patents)
- Mikito Baba (3 patents)
US Patent 5307503 · Granted Apr 26, 1994