Assignee
Inventors
- Kazuhiko Nobori (2 patents)
- Taira Iwase (23 patents)
- Masamichi Asano (92 patents)
- Makoto Takizawa (13 patents)
- Shigefumi Ishiguro (9 patents)
- Kazuo Yonehara (9 patents)
- Satoshi Nikawa (1 patents)
- Koji Saito (191 patents)
US Patent 5257230 · Granted Oct 26, 1993