Assignee
Inventors
- Kouichi Sogabe (14 patents)
- Shousaku Yamanaka (2 patents)
- Yoshinobu Takeda (36 patents)
- Nozomu Kawabe (50 patents)
- Hideo Itozaki (114 patents)
- Akira Nakayama (81 patents)
- Takashi Uemura (42 patents)
US Patent 6337146 · Granted Jan 8, 2002