Assignee
Inventors
- Nobuaki Tagaya (12 patents)
- Hideyuki Kuwahara (7 patents)
- Takao Hashimoto (12 patents)
- Noriko Komatsu (6 patents)
- Keiko Fukamachi (5 patents)
- Tsugio Maeshima (8 patents)
- Toshihiro Ishikawa (3 patents)
- Tetsuro Ogawa (38 patents)
US Patent 4781904 · Granted Nov 1, 1988