Assignee
Inventors
- Shusaka Katakura (1 patents)
- Masayuki Yasuoka (21 patents)
- Nobusuke Toukura (26 patents)
- Shojiro Sato (13 patents)
- Yoshinori Iwasaki (17 patents)
- Katsuhiko Tsuchiya (26 patents)
- Hideaki Watanabe (134 patents)
US Patent 6148257 · Granted Nov 14, 2000