Assignee
Inventors
- Ikuko Takanashi (1 patents)
- Shozo Kondo (32 patents)
- Katsushi Suzuki (8 patents)
- Kazutomo Naganuma (2 patents)
- Yoshiko Itabashi (1 patents)
- Chikako Kimura (1 patents)
- Naohito Inaba (1 patents)
US Patent 5442780 · Granted Aug 15, 1995