Assignee
Inventors
- Tomoaki Fukushige (2 patents)
- Hiroko Toda (1 patents)
- Hirofumi Akano (12 patents)
- Emiko Ito (4 patents)
- Tomohiko Fukuta (1 patents)
- Masahiro Fujimori (2 patents)
- Yoshiya Kawamura (18 patents)
US Patent 5340461 · Granted Aug 23, 1994