Assignee
Inventors
- Kiminori Mizuuchi (134 patents)
- Kazuhisa Yamamoto (225 patents)
- Tatsuo Kawaguchi (56 patents)
- Takashi Yoshino (94 patents)
- Minoru Imaeda (57 patents)
- Kenji Aoki (142 patents)
- Osamu Mitomi (38 patents)
US Patent 6631231 · Granted Oct 7, 2003