Assignee
Inventors
- Yasuo Katsuki (1 patents)
- Takashi Ohnishi (3 patents)
- Shozo Kaneko (25 patents)
- Akira Hashimoto (2 patents)
- Yuichi Fujioka (12 patents)
- Kikuo Tokunaga (4 patents)
- Toshihiko Setoguchi (16 patents)
US Patent 6228336 · Granted May 8, 2001