Assignee
Inventors
- Tsuyoshi Kokusho (3 patents)
- Keizou Tanaka (4 patents)
- Hideaki Ikeda (25 patents)
- Masanobu Ishikawa (33 patents)
- Hideo Nakamura (193 patents)
- Shigeru Ohno (130 patents)
- Masami Watanabe (61 patents)
US Patent 5769308 · Granted Jun 23, 1998