Assignee
Inventors
- Masachika Masuda (85 patents)
- Tamaki Wada (68 patents)
- Michiaki Sugiyama (53 patents)
- Hirotaka Nishizawa (77 patents)
- Toshio Sugano (58 patents)
- Yasushi Takahashi (170 patents)
- Masayasu Kawamura (15 patents)
US Patent 6555918 · Granted Apr 29, 2003