Assignee
Inventors
- Kenji Yone (2 patents)
- Jun Suzuki (13 patents)
- Noriyuki Tsunekawa (2 patents)
- Arata Kato (3 patents)
- Satoshi Nakamura (10 patents)
- Tsukio Masegi (4 patents)
- Kazuo Kitai (4 patents)
- Yataro Ichikawa (31 patents)
US Patent 5075236 · Granted Dec 24, 1991