Assignee
Inventors
- Michiei Nakamura (42 patents)
- Hiroyuki Shimanaka (32 patents)
- Yoshitaka Wakebe (2 patents)
- Tatsuo Kawamura (3 patents)
- Eiichi Sugawara (12 patents)
- Ken Okura (9 patents)
- Masayuki Takahashi (194 patents)
- Nobuo Takezawa (3 patents)
US Patent 6211293 · Granted Apr 3, 2001