Assignee
Inventors
- Toshinori Tsuji (4 patents)
- Koichi Hosoya (6 patents)
- Fumio Tsukimoto (1 patents)
- Tatsuya Ashida (1 patents)
- Katsuyuki Okubo (10 patents)
- Tetsuo Bokuhara (1 patents)
- Toshiaki Shinzo (1 patents)
US Patent 5181668 · Granted Jan 26, 1993