Assignee
Inventors
- Yuichi Ishino (21 patents)
- Toshiyuki Osaki (7 patents)
- Shigeki Endo (27 patents)
- Seisuke Tomita (38 patents)
- Takayuki Maruyama (52 patents)
- Yoshiki Fukuyama (7 patents)
- Tasuku Saito (28 patents)
US Patent 5087382 · Granted Feb 11, 1992