Assignee
Inventors
- Naomi Yoshida (49 patents)
- Hitoshi Yamasaki (3 patents)
- Ikuhisa Hamada (7 patents)
- Yasuyoshi Kato (50 patents)
- Kunihiko Konishi (20 patents)
- Toshiaki Matsuda (9 patents)
- Yuji Fukuda (121 patents)
US Patent 5294584 · Granted Mar 15, 1994