Assignee
Inventors
- Masaru Shibata (8 patents)
- Kiyoshi Kawai (68 patents)
- Takechi Makihara (2 patents)
- Norihisa Yonekura (15 patents)
- Takehiro Kawashima (2 patents)
- Junetsu Sakai (10 patents)
- Norimichi Muramatsu (7 patents)
US Patent 6576631 · Granted Jun 10, 2003