Assignee
Inventors
- Hirotake Yamada (21 patents)
- Yuji Katsuda (82 patents)
- Tsuneaki Ohashi (49 patents)
- Masaaki Masuda (55 patents)
- Masashi Harada (25 patents)
- Hiroyuki Iwasaki (97 patents)
- Shigenori Ito (24 patents)
US Patent 6783875 · Granted Aug 31, 2004