Assignee
Inventors
- Seiji Ishida (45 patents)
- Keijiro Sakai (19 patents)
- Toshiaki Okuyama (51 patents)
- Hiroshi Fujii (214 patents)
- Hiroyuki Tomita (100 patents)
- Tatsuo Ando (12 patents)
- Yuhachi Takakura (12 patents)
- Hideo Kimura (41 patents)
US Patent 6657412 · Granted Dec 2, 2003