Assignee
Inventors
- Yoshihiko Hashimoto (14 patents)
- Nagayoshi Adachi (4 patents)
- Tetsuo Mekata (4 patents)
- Kazushi Nakatani (9 patents)
- Junji Miyano (1 patents)
- Miwa Ishii (3 patents)
- Junko Yoshida (5 patents)
US Patent 6390538 · Granted May 21, 2002