Assignee
Inventors
- Takao Tsuda (23 patents)
- Takashi Igarashi (38 patents)
- Hiroyuki Iizuka (25 patents)
- Yasuo Ohkoshi (4 patents)
- Hideaki Yamamoto (141 patents)
- Tsuyoshi Ito (188 patents)
- Sumiya Nagatsuka (31 patents)
US Patent 6831665 · Granted Dec 14, 2004