Assignee
Inventors
- Tatsuo Higuchi (29 patents)
- Toshiaki Tarui (33 patents)
- Katsuyoshi Kitai (26 patents)
- Shigeo Takeuchi (44 patents)
- Tatsuru Toba (5 patents)
- Machiko Asaie (11 patents)
- Yasuhiro Inagami (31 patents)
US Patent 6502136 · Granted Dec 31, 2002