Assignee
Inventors
- Yoshihiro Obata (9 patents)
- Kikuo Iwasaka (15 patents)
- Shinichi Matsuno (14 patents)
- Hajime Yoshino (32 patents)
- Akira Sugiyama (148 patents)
- Hidehito Kurosawa (7 patents)
- Shigeru Ogawa (46 patents)
- Hideo Nanba (4 patents)
US Patent 6717092 · Granted Apr 6, 2004