Assignee
Inventors
- Hirohito Ito (25 patents)
- Kenji Nunome (15 patents)
- Makoto Sugimoto (50 patents)
- Kuniharu Tanaka (34 patents)
- Katsura Matsubara (8 patents)
- Yoshihiro Yamamoto (111 patents)
- Masaya Ito (60 patents)
US Patent 6559579 · Granted May 6, 2003