Assignee
Inventors
- Yoji Shibata (31 patents)
- Masaaki Takizawa (65 patents)
- Hitoshi Matsushima (70 patents)
- Kiyoshi Ishida (35 patents)
- Atsuo Yoshida (13 patents)
- Atsushi Ishibashi (58 patents)
- Takehiko Yamada (19 patents)
US Patent 5936945 · Granted Aug 10, 1999