Assignee
Inventors
- Masafumi Kamei (14 patents)
- Yoshiyuki Suzuki (110 patents)
- Shizuo Hasegawa (26 patents)
- Hiroyuki Ichikawa (133 patents)
- Yoshihiro Funamizu (18 patents)
- Akio Itoh (25 patents)
- Yoshinori Abe (89 patents)
US Patent 5691827 · Granted Nov 25, 1997