Assignee
Inventors
- Yoshiaki Ichikawa (77 patents)
- Makoto Senoh (9 patents)
- Masanori Suzuki (155 patents)
- Hiroshi Kamimura (16 patents)
- Fumio Tomizawa (10 patents)
- Sakae Sugiyama (10 patents)
- Masayoshi Sasaki (34 patents)
US Patent 4837734 · Granted Jun 6, 1989