Assignee
Inventors
- Yoshio Sugishima (24 patents)
- Hiroshi Shimoyama (37 patents)
- Keiji Okumura (86 patents)
- Kazuhisa Kondoh (3 patents)
- Sadahiro Matsuura (8 patents)
- Tohru Tanjyoh (1 patents)
- Tadakazu Okitsu (1 patents)
US Patent 6315288 · Granted Nov 13, 2001