Assignee
Inventors
- Masashi Yamamoto (121 patents)
- Koichi Niwa (31 patents)
- Tetsuo Ishikawa (13 patents)
- Shinichi Hosaka (2 patents)
- Masahiro Nakano (53 patents)
- Masahiko Saito (100 patents)
- Toru Miyasaka (38 patents)
US Patent 6560435 · Granted May 6, 2003