Assignee
Inventors
- Kazuhide Togai (34 patents)
- Tetsuro Ishida (15 patents)
- Katsunori Ueda (76 patents)
- Yoshiaki Danno (43 patents)
- Yasuki Tamura (32 patents)
- Katsuo Akishino (17 patents)
- Toyoaki Fukui (11 patents)
US Patent 5270575 · Granted Dec 14, 1993