Assignee
Inventors
- Satoru Kumazawa (39 patents)
- Susumu Shimizu (17 patents)
- Hiroyuki Enari (27 patents)
- Atsushi Ito (17 patents)
- Susumu Ikeda (10 patents)
- Nobuo Sato (23 patents)
- Toshihide Saishoji (18 patents)
US Patent 5239089 · Granted Aug 24, 1993