Assignee
Inventors
- Akira Yamada (290 patents)
- Chisako Maeda (6 patents)
- Toshio Umemura (6 patents)
- Fusaoki Uchikawa (41 patents)
- Koichiro Misu (16 patents)
- Shusou Wadaka (23 patents)
- Takahide Ishikawa (20 patents)
US Patent 6271619 · Granted Aug 7, 2001