Assignee
Inventors
- Hirokazu Maeda (45 patents)
- Mayumi Yamaguchi (1 patents)
- Tetsuya Uchiyama (3 patents)
- Hideki Baba (17 patents)
- Hidenobu Matsunami (4 patents)
- Yoshitaka Ebihara (9 patents)
- Junji Kanegae (1 patents)
US Patent 4882192 · Granted Nov 21, 1989