Assignee
Inventors
- Nobuyuki Sakashita (20 patents)
- Toshio Nakajima (69 patents)
- Shigeo Murai (18 patents)
- Kazuyuki Maeda (14 patents)
- Yuji Nakamura (138 patents)
- Tsunezo Yoshida (11 patents)
- Shooichi Honzawa (6 patents)
- Fumio Kanamori (12 patents)
US Patent 5583231 · Granted Dec 10, 1996