Assignee
Inventors
- Makoto Tsunenaga (7 patents)
- Naoki Tominaga (7 patents)
- Toshio Nishiyama (8 patents)
- Toru Yamashita (84 patents)
- Mutsumi Fukuyama (1 patents)
- Teruo Miyata (36 patents)
- Masayasu Furuse (10 patents)
US Patent 5137875 · Granted Aug 11, 1992