Assignee
Inventors
- Yoshio Katsuro (13 patents)
- Hozumi Endo (11 patents)
- Akira Utsunomiya (12 patents)
- Hiroaki Nagai (13 patents)
- Toshifumi Yoshikawa (1 patents)
- Shoji Oishi (2 patents)
- Takashi Yamaguchi (417 patents)
US Patent 6110852 · Granted Aug 29, 2000