Assignee
Inventors
- Masahiro Takagi (147 patents)
- Noriyasu Kato (15 patents)
- Keiji Tsunoda (43 patents)
- Kumiko Nakakita (3 patents)
- Katsuya Noujin (1 patents)
- Mutsumu Serizawa (40 patents)
- Eiji Kamagata (28 patents)
US Patent 6418128 · Granted Jul 9, 2002