Assignee
Inventors
- Hiroki Yamashita (121 patents)
- Hiroyuki Itoh (209 patents)
- Atsumi Kawata (5 patents)
- Tatsuya Saitoh (8 patents)
- Keiichirou Nakanishi (14 patents)
- Rieko Ishida (1 patents)
- Tsuneyo Chiba (3 patents)
US Patent 5521536 · Granted May 28, 1996