Assignee
Inventors
- Shinichi Asano (60 patents)
- Hiroshi Toma (10 patents)
- Nobuyuki Yamaguchi (72 patents)
- Toshiro Ono (15 patents)
- Masaru Akiba (57 patents)
- Teiji Matsubara (16 patents)
- Mitsuru Sasaki (34 patents)
US Patent 6016982 · Granted Jan 25, 2000