Assignee
Inventors
- Akihisa Kawamura (72 patents)
- Masaharu Matsumoto (84 patents)
- Mitsuhiko Serikawa (21 patents)
- Ryo Tagami (3 patents)
- Katsuaki Sato (31 patents)
- Hiroko Yoshida (6 patents)
- Hikari Hashimoto (2 patents)
US Patent 5164840 · Granted Nov 17, 1992