Assignee
Inventors
- Naoki Koga (4 patents)
- Masaki Taneo (2 patents)
- Motoshi Yasuda (1 patents)
- Shozo Tateyama (1 patents)
- Akio Matsumoto (75 patents)
- Toshiya Nishikawa (3 patents)
- Masato Otsu (12 patents)
- Fumio Hongo (1 patents)
US Patent 6242117 · Granted Jun 5, 2001