Assignee
Inventors
- Hideaki Mizukami (5 patents)
- Ryuji Yamaguchi (18 patents)
- Takashi Nakayama (104 patents)
- Teruo Tatefuku (1 patents)
- Norio Ao (5 patents)
- Toshimichi Maki (7 patents)
- Yasuhiro Sato (121 patents)
- Hirotsugu Kubo (18 patents)
US Patent 6693948 · Granted Feb 17, 2004